work plan addendumengineer 10+years of relevant experience t: 857‐246‐6800 x220...
TRANSCRIPT
Work Plan Addendum
Maine State Pin Number 01252108 August 2012
Operable Unit 1 | Callahan Mine Superfund Site | Brooksville Maine
Prepared for Prepared by
State of Maine Charter Environmental Inc Department of Environmental Protection 560 Harrison Avenue 17 State House Station Boston Massachusetts 02118 August Maine 04333-0017
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
TABLE OF CONTENTS
10 INTRODUCTION 1 11 PROJECT LOCATION AND BACKGROUND 1
12 PROJECT OBJECTIVES AND SUMMARY OF WORK 2
13 PROJECT SCHEDULE 2
20 PROJECT MANAGEMENT amp PLANNING 3 21 PERSONNEL DUTIES AND RESPONSIBILITIES 4
22 MEETINGS AND REPORTS 4
30 PROJECT ACTIVITIES 6 31 PRE‐CONSTRUCTION ACTIVITIES 6
32 PLANS 6
33 MOBILIZATION AND SITE PREPARATION 7
34 CLEARING AND GRUBBING 8
35 BLASTING OF LEDGE 8
36 RELOCATION OF CONCRETE RUBBLE 8
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES 8
38 EROSION AND SEDIMENT CONTROLS 9
39 TREATMENT OF TCLP LEAD FAILED SOILS 9
310 EXCAVATION OF PCB IMPACTED SOILS 10
311 DECONTAMINATION PROCEDURES 13
312 DUST CONTROL 15
313 DEWATERING AND WATER TREATMENT 15
314 TRANSPORTATION AND DISPOSAL 15
315 DEMOBILIZATION 16
ATTACHMENT A ndash SITE PLAN
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
APPENDIX A ndash PROJECT SCHEDULE
APPENDIX B ndash ENVIROBLEND MSDS
Page | i
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
LISTS OF ACRONYMS AND ABBREVIATIONS
CY Cubic Yards
ERP Emergency Response Plan
MEDEP Maine Department of Environmental Protection
PPM Parts Per Million
PCBs Polychlorinated Biphenyls
PPE Personal Protective Equipment
SHSO Site Health and Safety Officer
SHSP Site Health and Safety Plan
WP Work Plan
Page | ii
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
10 INTRODUCTION Charter Environmental Inc (Charter) has been contracted by the Department of Environmental Protection to perform the removal of impacted soils from the Callahan Mine Superfund site in Brooksville ME This Work Plan addendum has also been developed in accordance with Operable Unit 1 specifications and its addendums as well as the plans and specifications issued by CES for the second phase of remediation under OU1 to be performed in the Fall of 2012
11 PROJECT LOCATION AND BACKGROUND The Callahan Mine Superfund Site is located in Brooksville Maine approximately 35 miles west of Bar Harbor Maine The 120 acre site operated intermittently from the 1880rsquos to the 1970rsquos In 1968 through 1972 The Callahan Mining Co operated a heavy strip mining operation that consisted of crushing milling and concentrating of copper lead and zinc ores An estimated 800000 tons of ore materials were extracted from the mine Five million tons of waste rock and tailings containing contaminants from the mining operations were stockpiled and left onsite
In September 2002 the Callahan Mine was officially listed as a superfund site In 2004 investigations began onsite to determine the extent of contamination which resulted in the Maine DEP issuing Operable Unit 1 Remediation plan in 2010 Charter Environmental Inc was contracted in January 2011 for the Phase 1 Remediation of the Callahan Mine Superfund site
Charter mobilized for the initial remediation work of OU1 in the spring of 2011 Charterrsquos scope for this phase included the performing initial remediation of PCB impacted soils in the former Mine Ops area Soils excavated here were divided into gt50 ppm and lt50 ppm levels of contamination with gt50 soils transported to Model City NY and disposed lt50 ppm soils were transported to Crossroads Landfill in Norridgewock Maine and disposed
In addition to the excavation of PCB impacted soils remediation and restoration of the residential areas was also performed This work included the excavation and relocation of lead and arsenic impacted soils from Residential Lots A B C and D on Old Mine Road as well as Lot E located on Goose Falls Road Work associated with this excavation included the removal of existing septic systems and installation of new modern septic systems New drinking water wells were also installed at Lots DampE Following the completion of backfilling the lots were restored Restoration included new loam and seed plantings and restoration of property removed or damaged to allow implementation of the cleanup such as the replacement of the boat ramp at Lot E Pavement was added to Old Mine Road to reduce dust generation due to site vehicle traffic
Charter also provided support for the investigative drilling program that was on‐going at the Tailings Impoundment to support the geotechnical evaluation regarding the appropriate location to place material from the residential soil excavation and any non‐PCB material removed from the Mine Operations and Ore Pad areas
Prior to the restoration of the disturbed sections in the Mine Operations Area the material from the Ore Pad material was relocated to the Tailings Impoundment to prevent this material from acting as a source of contamination to the Mine Operations areas to be restored Pore pressures of the Tailings were monitored during the duration of the placement of Ore at the Tailings Impoundment This was done by taking readings from the vibrating wire piezometers installed during the investigative drilling program
Charter demobilized manpower and equipment from the site in January of 2012 The following spring the Maine DEP performed additional delineation of PCB contaminated areas at the former Mine Ops
Page | 1
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
12 PROJECT OBJECTIVES AND SUMMARY OF WORK The work to be performed under this addendum consists of excavation of gt50 lt50 and 1‐10 ppm PCB soils from the former Mine Operations area The areas to be remediated were delineated by the Maine DEP in 2012 These delineations were provided to Charter by CES in the project drawings dated 83012 Excavation of impacted soils is to be performed to depths of 6rdquo 18rdquo 30rdquo and 42rdquo The drawings provided show the Mine Ops area divided up into four separate zones to better organize the remediation effort
Specific details regarding the work to be performed under this contract will be addressed in this plan
13 PROJECT SCHEDULE A project schedule is located in APPENDIX A
Page | 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
20 PROJECT MANAGEMENT amp PLANNING Charterrsquos management plan for organizing work on the Former Callahan Mine Superfund Site combines a responsive organizational structure with an efficient project management process The structure of our project organization includes best‐in‐class management professionals and experienced project personnel who are familiar with MEDEP personnel systems and expectations Our project Team is organized to maximize control and responsiveness to not only meet but exceed the requirements for this contract
Remedial Project Manager Naji Akladiss Maine DEP
Health amp Safety Director Edward Price
Site Health amp Safety Officer Jeff Shea
Project Manager Mike Kunce
Site Superintendent Jeff Shea
Site Quality Control Field Engineer Derek Koenig
Sub Contractors
Project Director Anthony Pisanelli
CHMM
Figure 2‐0 The Charter Team provides clearly defined roles to manage the Contract
Page | 3
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
21 PERSONNEL DUTIES AND RESPONSIBILITIES Figure 2‐1 Charterrsquos Key Personnel and Their Responsibilities
Name Project Role Contact Information
Project Responsibilities
Anthony Pisanelli CHMM Serves as point of contact to Maine Department of Environmental Project Director Protection Mr Pisanelli is responsible for overall project delivery and 25 + Years of Relevant Experience assists with project or contract related issues Mr Pisanelli brings over T 857‐246‐6800 x214 25+ years of project experience apisanellicharterenvironmentalcom Edward Price Health amp Safety Director 19+ Years of Relevant Experience T 857‐246‐6800 x208 epricecharterenvironmentalcom
Reviews and approves Site HASP Supports the execution of the HASP Ensures proper training and equipment as required Has Stop‐Work authority for any unsafe condition Conducts unannounced site safety audits Works directly with the Site Health and Safety Officer to ensure compliance with project Health and Safety requirements
Michael Kunce Project Manager 10+ Years of Relevant Experience T 857‐246‐6800 x224 mkuncecharterenvironmentalcom
Serves as lead point of contact to ME DEP on project scope schedule and execution Responsible for construction performance schedule and budget Mr Kunce is directly responsible for the over sight and development of all work plans associated with the site
Jonathan Simpson Directs TampD operational regulatory and administrative issues Reviews Transportation amp Disposal Facility permits confirms disposalrecycling and overall facility capacity Coordinator Troubleshoots scheduling delays due to weather and facility capacity 10+ Years of Relevant Experience limitations Mr Simpson coordinates transportation and disposal of soil T 857‐246‐6800 x210 containing PCBs metals and other hazardous and non‐hazardous jsimpsoncharterenvironmentalcom materials Jeff Shea Site Superintendent Site Safety amp Health Officer 14+ Years of Relevant Experience T 857‐246‐6800 jsheacharterenvironmentalcom
Manages field activities Responsible for meeting production and schedule requirements Holds daily meetings to outline site remediation activities and daily site health and safety meetings Acts as point‐of‐contact to ME DEP during the work and serves as Site Health and Safety Officer Site work performed by Charterrsquos field personnel and any subcontractors are under the direct supervision of Charterrsquos Site Superintendent Has Stop‐Work authority for Health amp Safety issues
Derek Koenig Site Quality Control Officer Field Engineer 10+ Years of Relevant Experience T 857‐246‐6800 x220 dkoenigcharterenvironmentalcom
Responsible for implementing the Contractor Quality Control Plan
22 MEETINGS AND REPORTS
Progress meetings will be held with MEDEP on a regular basis to discuss progress and any other requirements to perform the work At the request of the Maine DEP Charterrsquos onsite personnel will attend this meeting in person as necessary and as onsite activities allow Charterrsquos Project Manager will attend via phone Charter will prepare meeting minutes and provide a MS Word version to the attendees of the meeting and others as requested by the Maine DEP within one day after the meeting
A daily Contractor Production Report and QC Report will be completed whenever onsite activities occur and will be submitted as required A copy of daily reports will be retained in the project files and will be
Page | 4
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
included in the project closure report The Charter project management team will prepare weekly summaries of the project progress and status including weekly cost tracking to be distributed to the project stakeholders via email
Page | 5
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
TABLE OF CONTENTS
10 INTRODUCTION 1 11 PROJECT LOCATION AND BACKGROUND 1
12 PROJECT OBJECTIVES AND SUMMARY OF WORK 2
13 PROJECT SCHEDULE 2
20 PROJECT MANAGEMENT amp PLANNING 3 21 PERSONNEL DUTIES AND RESPONSIBILITIES 4
22 MEETINGS AND REPORTS 4
30 PROJECT ACTIVITIES 6 31 PRE‐CONSTRUCTION ACTIVITIES 6
32 PLANS 6
33 MOBILIZATION AND SITE PREPARATION 7
34 CLEARING AND GRUBBING 8
35 BLASTING OF LEDGE 8
36 RELOCATION OF CONCRETE RUBBLE 8
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES 8
38 EROSION AND SEDIMENT CONTROLS 9
39 TREATMENT OF TCLP LEAD FAILED SOILS 9
310 EXCAVATION OF PCB IMPACTED SOILS 10
311 DECONTAMINATION PROCEDURES 13
312 DUST CONTROL 15
313 DEWATERING AND WATER TREATMENT 15
314 TRANSPORTATION AND DISPOSAL 15
315 DEMOBILIZATION 16
ATTACHMENT A ndash SITE PLAN
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
APPENDIX A ndash PROJECT SCHEDULE
APPENDIX B ndash ENVIROBLEND MSDS
Page | i
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
LISTS OF ACRONYMS AND ABBREVIATIONS
CY Cubic Yards
ERP Emergency Response Plan
MEDEP Maine Department of Environmental Protection
PPM Parts Per Million
PCBs Polychlorinated Biphenyls
PPE Personal Protective Equipment
SHSO Site Health and Safety Officer
SHSP Site Health and Safety Plan
WP Work Plan
Page | ii
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
10 INTRODUCTION Charter Environmental Inc (Charter) has been contracted by the Department of Environmental Protection to perform the removal of impacted soils from the Callahan Mine Superfund site in Brooksville ME This Work Plan addendum has also been developed in accordance with Operable Unit 1 specifications and its addendums as well as the plans and specifications issued by CES for the second phase of remediation under OU1 to be performed in the Fall of 2012
11 PROJECT LOCATION AND BACKGROUND The Callahan Mine Superfund Site is located in Brooksville Maine approximately 35 miles west of Bar Harbor Maine The 120 acre site operated intermittently from the 1880rsquos to the 1970rsquos In 1968 through 1972 The Callahan Mining Co operated a heavy strip mining operation that consisted of crushing milling and concentrating of copper lead and zinc ores An estimated 800000 tons of ore materials were extracted from the mine Five million tons of waste rock and tailings containing contaminants from the mining operations were stockpiled and left onsite
In September 2002 the Callahan Mine was officially listed as a superfund site In 2004 investigations began onsite to determine the extent of contamination which resulted in the Maine DEP issuing Operable Unit 1 Remediation plan in 2010 Charter Environmental Inc was contracted in January 2011 for the Phase 1 Remediation of the Callahan Mine Superfund site
Charter mobilized for the initial remediation work of OU1 in the spring of 2011 Charterrsquos scope for this phase included the performing initial remediation of PCB impacted soils in the former Mine Ops area Soils excavated here were divided into gt50 ppm and lt50 ppm levels of contamination with gt50 soils transported to Model City NY and disposed lt50 ppm soils were transported to Crossroads Landfill in Norridgewock Maine and disposed
In addition to the excavation of PCB impacted soils remediation and restoration of the residential areas was also performed This work included the excavation and relocation of lead and arsenic impacted soils from Residential Lots A B C and D on Old Mine Road as well as Lot E located on Goose Falls Road Work associated with this excavation included the removal of existing septic systems and installation of new modern septic systems New drinking water wells were also installed at Lots DampE Following the completion of backfilling the lots were restored Restoration included new loam and seed plantings and restoration of property removed or damaged to allow implementation of the cleanup such as the replacement of the boat ramp at Lot E Pavement was added to Old Mine Road to reduce dust generation due to site vehicle traffic
Charter also provided support for the investigative drilling program that was on‐going at the Tailings Impoundment to support the geotechnical evaluation regarding the appropriate location to place material from the residential soil excavation and any non‐PCB material removed from the Mine Operations and Ore Pad areas
Prior to the restoration of the disturbed sections in the Mine Operations Area the material from the Ore Pad material was relocated to the Tailings Impoundment to prevent this material from acting as a source of contamination to the Mine Operations areas to be restored Pore pressures of the Tailings were monitored during the duration of the placement of Ore at the Tailings Impoundment This was done by taking readings from the vibrating wire piezometers installed during the investigative drilling program
Charter demobilized manpower and equipment from the site in January of 2012 The following spring the Maine DEP performed additional delineation of PCB contaminated areas at the former Mine Ops
Page | 1
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
12 PROJECT OBJECTIVES AND SUMMARY OF WORK The work to be performed under this addendum consists of excavation of gt50 lt50 and 1‐10 ppm PCB soils from the former Mine Operations area The areas to be remediated were delineated by the Maine DEP in 2012 These delineations were provided to Charter by CES in the project drawings dated 83012 Excavation of impacted soils is to be performed to depths of 6rdquo 18rdquo 30rdquo and 42rdquo The drawings provided show the Mine Ops area divided up into four separate zones to better organize the remediation effort
Specific details regarding the work to be performed under this contract will be addressed in this plan
13 PROJECT SCHEDULE A project schedule is located in APPENDIX A
Page | 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
20 PROJECT MANAGEMENT amp PLANNING Charterrsquos management plan for organizing work on the Former Callahan Mine Superfund Site combines a responsive organizational structure with an efficient project management process The structure of our project organization includes best‐in‐class management professionals and experienced project personnel who are familiar with MEDEP personnel systems and expectations Our project Team is organized to maximize control and responsiveness to not only meet but exceed the requirements for this contract
Remedial Project Manager Naji Akladiss Maine DEP
Health amp Safety Director Edward Price
Site Health amp Safety Officer Jeff Shea
Project Manager Mike Kunce
Site Superintendent Jeff Shea
Site Quality Control Field Engineer Derek Koenig
Sub Contractors
Project Director Anthony Pisanelli
CHMM
Figure 2‐0 The Charter Team provides clearly defined roles to manage the Contract
Page | 3
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
21 PERSONNEL DUTIES AND RESPONSIBILITIES Figure 2‐1 Charterrsquos Key Personnel and Their Responsibilities
Name Project Role Contact Information
Project Responsibilities
Anthony Pisanelli CHMM Serves as point of contact to Maine Department of Environmental Project Director Protection Mr Pisanelli is responsible for overall project delivery and 25 + Years of Relevant Experience assists with project or contract related issues Mr Pisanelli brings over T 857‐246‐6800 x214 25+ years of project experience apisanellicharterenvironmentalcom Edward Price Health amp Safety Director 19+ Years of Relevant Experience T 857‐246‐6800 x208 epricecharterenvironmentalcom
Reviews and approves Site HASP Supports the execution of the HASP Ensures proper training and equipment as required Has Stop‐Work authority for any unsafe condition Conducts unannounced site safety audits Works directly with the Site Health and Safety Officer to ensure compliance with project Health and Safety requirements
Michael Kunce Project Manager 10+ Years of Relevant Experience T 857‐246‐6800 x224 mkuncecharterenvironmentalcom
Serves as lead point of contact to ME DEP on project scope schedule and execution Responsible for construction performance schedule and budget Mr Kunce is directly responsible for the over sight and development of all work plans associated with the site
Jonathan Simpson Directs TampD operational regulatory and administrative issues Reviews Transportation amp Disposal Facility permits confirms disposalrecycling and overall facility capacity Coordinator Troubleshoots scheduling delays due to weather and facility capacity 10+ Years of Relevant Experience limitations Mr Simpson coordinates transportation and disposal of soil T 857‐246‐6800 x210 containing PCBs metals and other hazardous and non‐hazardous jsimpsoncharterenvironmentalcom materials Jeff Shea Site Superintendent Site Safety amp Health Officer 14+ Years of Relevant Experience T 857‐246‐6800 jsheacharterenvironmentalcom
Manages field activities Responsible for meeting production and schedule requirements Holds daily meetings to outline site remediation activities and daily site health and safety meetings Acts as point‐of‐contact to ME DEP during the work and serves as Site Health and Safety Officer Site work performed by Charterrsquos field personnel and any subcontractors are under the direct supervision of Charterrsquos Site Superintendent Has Stop‐Work authority for Health amp Safety issues
Derek Koenig Site Quality Control Officer Field Engineer 10+ Years of Relevant Experience T 857‐246‐6800 x220 dkoenigcharterenvironmentalcom
Responsible for implementing the Contractor Quality Control Plan
22 MEETINGS AND REPORTS
Progress meetings will be held with MEDEP on a regular basis to discuss progress and any other requirements to perform the work At the request of the Maine DEP Charterrsquos onsite personnel will attend this meeting in person as necessary and as onsite activities allow Charterrsquos Project Manager will attend via phone Charter will prepare meeting minutes and provide a MS Word version to the attendees of the meeting and others as requested by the Maine DEP within one day after the meeting
A daily Contractor Production Report and QC Report will be completed whenever onsite activities occur and will be submitted as required A copy of daily reports will be retained in the project files and will be
Page | 4
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
included in the project closure report The Charter project management team will prepare weekly summaries of the project progress and status including weekly cost tracking to be distributed to the project stakeholders via email
Page | 5
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
LISTS OF ACRONYMS AND ABBREVIATIONS
CY Cubic Yards
ERP Emergency Response Plan
MEDEP Maine Department of Environmental Protection
PPM Parts Per Million
PCBs Polychlorinated Biphenyls
PPE Personal Protective Equipment
SHSO Site Health and Safety Officer
SHSP Site Health and Safety Plan
WP Work Plan
Page | ii
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
10 INTRODUCTION Charter Environmental Inc (Charter) has been contracted by the Department of Environmental Protection to perform the removal of impacted soils from the Callahan Mine Superfund site in Brooksville ME This Work Plan addendum has also been developed in accordance with Operable Unit 1 specifications and its addendums as well as the plans and specifications issued by CES for the second phase of remediation under OU1 to be performed in the Fall of 2012
11 PROJECT LOCATION AND BACKGROUND The Callahan Mine Superfund Site is located in Brooksville Maine approximately 35 miles west of Bar Harbor Maine The 120 acre site operated intermittently from the 1880rsquos to the 1970rsquos In 1968 through 1972 The Callahan Mining Co operated a heavy strip mining operation that consisted of crushing milling and concentrating of copper lead and zinc ores An estimated 800000 tons of ore materials were extracted from the mine Five million tons of waste rock and tailings containing contaminants from the mining operations were stockpiled and left onsite
In September 2002 the Callahan Mine was officially listed as a superfund site In 2004 investigations began onsite to determine the extent of contamination which resulted in the Maine DEP issuing Operable Unit 1 Remediation plan in 2010 Charter Environmental Inc was contracted in January 2011 for the Phase 1 Remediation of the Callahan Mine Superfund site
Charter mobilized for the initial remediation work of OU1 in the spring of 2011 Charterrsquos scope for this phase included the performing initial remediation of PCB impacted soils in the former Mine Ops area Soils excavated here were divided into gt50 ppm and lt50 ppm levels of contamination with gt50 soils transported to Model City NY and disposed lt50 ppm soils were transported to Crossroads Landfill in Norridgewock Maine and disposed
In addition to the excavation of PCB impacted soils remediation and restoration of the residential areas was also performed This work included the excavation and relocation of lead and arsenic impacted soils from Residential Lots A B C and D on Old Mine Road as well as Lot E located on Goose Falls Road Work associated with this excavation included the removal of existing septic systems and installation of new modern septic systems New drinking water wells were also installed at Lots DampE Following the completion of backfilling the lots were restored Restoration included new loam and seed plantings and restoration of property removed or damaged to allow implementation of the cleanup such as the replacement of the boat ramp at Lot E Pavement was added to Old Mine Road to reduce dust generation due to site vehicle traffic
Charter also provided support for the investigative drilling program that was on‐going at the Tailings Impoundment to support the geotechnical evaluation regarding the appropriate location to place material from the residential soil excavation and any non‐PCB material removed from the Mine Operations and Ore Pad areas
Prior to the restoration of the disturbed sections in the Mine Operations Area the material from the Ore Pad material was relocated to the Tailings Impoundment to prevent this material from acting as a source of contamination to the Mine Operations areas to be restored Pore pressures of the Tailings were monitored during the duration of the placement of Ore at the Tailings Impoundment This was done by taking readings from the vibrating wire piezometers installed during the investigative drilling program
Charter demobilized manpower and equipment from the site in January of 2012 The following spring the Maine DEP performed additional delineation of PCB contaminated areas at the former Mine Ops
Page | 1
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
12 PROJECT OBJECTIVES AND SUMMARY OF WORK The work to be performed under this addendum consists of excavation of gt50 lt50 and 1‐10 ppm PCB soils from the former Mine Operations area The areas to be remediated were delineated by the Maine DEP in 2012 These delineations were provided to Charter by CES in the project drawings dated 83012 Excavation of impacted soils is to be performed to depths of 6rdquo 18rdquo 30rdquo and 42rdquo The drawings provided show the Mine Ops area divided up into four separate zones to better organize the remediation effort
Specific details regarding the work to be performed under this contract will be addressed in this plan
13 PROJECT SCHEDULE A project schedule is located in APPENDIX A
Page | 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
20 PROJECT MANAGEMENT amp PLANNING Charterrsquos management plan for organizing work on the Former Callahan Mine Superfund Site combines a responsive organizational structure with an efficient project management process The structure of our project organization includes best‐in‐class management professionals and experienced project personnel who are familiar with MEDEP personnel systems and expectations Our project Team is organized to maximize control and responsiveness to not only meet but exceed the requirements for this contract
Remedial Project Manager Naji Akladiss Maine DEP
Health amp Safety Director Edward Price
Site Health amp Safety Officer Jeff Shea
Project Manager Mike Kunce
Site Superintendent Jeff Shea
Site Quality Control Field Engineer Derek Koenig
Sub Contractors
Project Director Anthony Pisanelli
CHMM
Figure 2‐0 The Charter Team provides clearly defined roles to manage the Contract
Page | 3
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
21 PERSONNEL DUTIES AND RESPONSIBILITIES Figure 2‐1 Charterrsquos Key Personnel and Their Responsibilities
Name Project Role Contact Information
Project Responsibilities
Anthony Pisanelli CHMM Serves as point of contact to Maine Department of Environmental Project Director Protection Mr Pisanelli is responsible for overall project delivery and 25 + Years of Relevant Experience assists with project or contract related issues Mr Pisanelli brings over T 857‐246‐6800 x214 25+ years of project experience apisanellicharterenvironmentalcom Edward Price Health amp Safety Director 19+ Years of Relevant Experience T 857‐246‐6800 x208 epricecharterenvironmentalcom
Reviews and approves Site HASP Supports the execution of the HASP Ensures proper training and equipment as required Has Stop‐Work authority for any unsafe condition Conducts unannounced site safety audits Works directly with the Site Health and Safety Officer to ensure compliance with project Health and Safety requirements
Michael Kunce Project Manager 10+ Years of Relevant Experience T 857‐246‐6800 x224 mkuncecharterenvironmentalcom
Serves as lead point of contact to ME DEP on project scope schedule and execution Responsible for construction performance schedule and budget Mr Kunce is directly responsible for the over sight and development of all work plans associated with the site
Jonathan Simpson Directs TampD operational regulatory and administrative issues Reviews Transportation amp Disposal Facility permits confirms disposalrecycling and overall facility capacity Coordinator Troubleshoots scheduling delays due to weather and facility capacity 10+ Years of Relevant Experience limitations Mr Simpson coordinates transportation and disposal of soil T 857‐246‐6800 x210 containing PCBs metals and other hazardous and non‐hazardous jsimpsoncharterenvironmentalcom materials Jeff Shea Site Superintendent Site Safety amp Health Officer 14+ Years of Relevant Experience T 857‐246‐6800 jsheacharterenvironmentalcom
Manages field activities Responsible for meeting production and schedule requirements Holds daily meetings to outline site remediation activities and daily site health and safety meetings Acts as point‐of‐contact to ME DEP during the work and serves as Site Health and Safety Officer Site work performed by Charterrsquos field personnel and any subcontractors are under the direct supervision of Charterrsquos Site Superintendent Has Stop‐Work authority for Health amp Safety issues
Derek Koenig Site Quality Control Officer Field Engineer 10+ Years of Relevant Experience T 857‐246‐6800 x220 dkoenigcharterenvironmentalcom
Responsible for implementing the Contractor Quality Control Plan
22 MEETINGS AND REPORTS
Progress meetings will be held with MEDEP on a regular basis to discuss progress and any other requirements to perform the work At the request of the Maine DEP Charterrsquos onsite personnel will attend this meeting in person as necessary and as onsite activities allow Charterrsquos Project Manager will attend via phone Charter will prepare meeting minutes and provide a MS Word version to the attendees of the meeting and others as requested by the Maine DEP within one day after the meeting
A daily Contractor Production Report and QC Report will be completed whenever onsite activities occur and will be submitted as required A copy of daily reports will be retained in the project files and will be
Page | 4
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
included in the project closure report The Charter project management team will prepare weekly summaries of the project progress and status including weekly cost tracking to be distributed to the project stakeholders via email
Page | 5
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
10 INTRODUCTION Charter Environmental Inc (Charter) has been contracted by the Department of Environmental Protection to perform the removal of impacted soils from the Callahan Mine Superfund site in Brooksville ME This Work Plan addendum has also been developed in accordance with Operable Unit 1 specifications and its addendums as well as the plans and specifications issued by CES for the second phase of remediation under OU1 to be performed in the Fall of 2012
11 PROJECT LOCATION AND BACKGROUND The Callahan Mine Superfund Site is located in Brooksville Maine approximately 35 miles west of Bar Harbor Maine The 120 acre site operated intermittently from the 1880rsquos to the 1970rsquos In 1968 through 1972 The Callahan Mining Co operated a heavy strip mining operation that consisted of crushing milling and concentrating of copper lead and zinc ores An estimated 800000 tons of ore materials were extracted from the mine Five million tons of waste rock and tailings containing contaminants from the mining operations were stockpiled and left onsite
In September 2002 the Callahan Mine was officially listed as a superfund site In 2004 investigations began onsite to determine the extent of contamination which resulted in the Maine DEP issuing Operable Unit 1 Remediation plan in 2010 Charter Environmental Inc was contracted in January 2011 for the Phase 1 Remediation of the Callahan Mine Superfund site
Charter mobilized for the initial remediation work of OU1 in the spring of 2011 Charterrsquos scope for this phase included the performing initial remediation of PCB impacted soils in the former Mine Ops area Soils excavated here were divided into gt50 ppm and lt50 ppm levels of contamination with gt50 soils transported to Model City NY and disposed lt50 ppm soils were transported to Crossroads Landfill in Norridgewock Maine and disposed
In addition to the excavation of PCB impacted soils remediation and restoration of the residential areas was also performed This work included the excavation and relocation of lead and arsenic impacted soils from Residential Lots A B C and D on Old Mine Road as well as Lot E located on Goose Falls Road Work associated with this excavation included the removal of existing septic systems and installation of new modern septic systems New drinking water wells were also installed at Lots DampE Following the completion of backfilling the lots were restored Restoration included new loam and seed plantings and restoration of property removed or damaged to allow implementation of the cleanup such as the replacement of the boat ramp at Lot E Pavement was added to Old Mine Road to reduce dust generation due to site vehicle traffic
Charter also provided support for the investigative drilling program that was on‐going at the Tailings Impoundment to support the geotechnical evaluation regarding the appropriate location to place material from the residential soil excavation and any non‐PCB material removed from the Mine Operations and Ore Pad areas
Prior to the restoration of the disturbed sections in the Mine Operations Area the material from the Ore Pad material was relocated to the Tailings Impoundment to prevent this material from acting as a source of contamination to the Mine Operations areas to be restored Pore pressures of the Tailings were monitored during the duration of the placement of Ore at the Tailings Impoundment This was done by taking readings from the vibrating wire piezometers installed during the investigative drilling program
Charter demobilized manpower and equipment from the site in January of 2012 The following spring the Maine DEP performed additional delineation of PCB contaminated areas at the former Mine Ops
Page | 1
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
12 PROJECT OBJECTIVES AND SUMMARY OF WORK The work to be performed under this addendum consists of excavation of gt50 lt50 and 1‐10 ppm PCB soils from the former Mine Operations area The areas to be remediated were delineated by the Maine DEP in 2012 These delineations were provided to Charter by CES in the project drawings dated 83012 Excavation of impacted soils is to be performed to depths of 6rdquo 18rdquo 30rdquo and 42rdquo The drawings provided show the Mine Ops area divided up into four separate zones to better organize the remediation effort
Specific details regarding the work to be performed under this contract will be addressed in this plan
13 PROJECT SCHEDULE A project schedule is located in APPENDIX A
Page | 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
20 PROJECT MANAGEMENT amp PLANNING Charterrsquos management plan for organizing work on the Former Callahan Mine Superfund Site combines a responsive organizational structure with an efficient project management process The structure of our project organization includes best‐in‐class management professionals and experienced project personnel who are familiar with MEDEP personnel systems and expectations Our project Team is organized to maximize control and responsiveness to not only meet but exceed the requirements for this contract
Remedial Project Manager Naji Akladiss Maine DEP
Health amp Safety Director Edward Price
Site Health amp Safety Officer Jeff Shea
Project Manager Mike Kunce
Site Superintendent Jeff Shea
Site Quality Control Field Engineer Derek Koenig
Sub Contractors
Project Director Anthony Pisanelli
CHMM
Figure 2‐0 The Charter Team provides clearly defined roles to manage the Contract
Page | 3
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
21 PERSONNEL DUTIES AND RESPONSIBILITIES Figure 2‐1 Charterrsquos Key Personnel and Their Responsibilities
Name Project Role Contact Information
Project Responsibilities
Anthony Pisanelli CHMM Serves as point of contact to Maine Department of Environmental Project Director Protection Mr Pisanelli is responsible for overall project delivery and 25 + Years of Relevant Experience assists with project or contract related issues Mr Pisanelli brings over T 857‐246‐6800 x214 25+ years of project experience apisanellicharterenvironmentalcom Edward Price Health amp Safety Director 19+ Years of Relevant Experience T 857‐246‐6800 x208 epricecharterenvironmentalcom
Reviews and approves Site HASP Supports the execution of the HASP Ensures proper training and equipment as required Has Stop‐Work authority for any unsafe condition Conducts unannounced site safety audits Works directly with the Site Health and Safety Officer to ensure compliance with project Health and Safety requirements
Michael Kunce Project Manager 10+ Years of Relevant Experience T 857‐246‐6800 x224 mkuncecharterenvironmentalcom
Serves as lead point of contact to ME DEP on project scope schedule and execution Responsible for construction performance schedule and budget Mr Kunce is directly responsible for the over sight and development of all work plans associated with the site
Jonathan Simpson Directs TampD operational regulatory and administrative issues Reviews Transportation amp Disposal Facility permits confirms disposalrecycling and overall facility capacity Coordinator Troubleshoots scheduling delays due to weather and facility capacity 10+ Years of Relevant Experience limitations Mr Simpson coordinates transportation and disposal of soil T 857‐246‐6800 x210 containing PCBs metals and other hazardous and non‐hazardous jsimpsoncharterenvironmentalcom materials Jeff Shea Site Superintendent Site Safety amp Health Officer 14+ Years of Relevant Experience T 857‐246‐6800 jsheacharterenvironmentalcom
Manages field activities Responsible for meeting production and schedule requirements Holds daily meetings to outline site remediation activities and daily site health and safety meetings Acts as point‐of‐contact to ME DEP during the work and serves as Site Health and Safety Officer Site work performed by Charterrsquos field personnel and any subcontractors are under the direct supervision of Charterrsquos Site Superintendent Has Stop‐Work authority for Health amp Safety issues
Derek Koenig Site Quality Control Officer Field Engineer 10+ Years of Relevant Experience T 857‐246‐6800 x220 dkoenigcharterenvironmentalcom
Responsible for implementing the Contractor Quality Control Plan
22 MEETINGS AND REPORTS
Progress meetings will be held with MEDEP on a regular basis to discuss progress and any other requirements to perform the work At the request of the Maine DEP Charterrsquos onsite personnel will attend this meeting in person as necessary and as onsite activities allow Charterrsquos Project Manager will attend via phone Charter will prepare meeting minutes and provide a MS Word version to the attendees of the meeting and others as requested by the Maine DEP within one day after the meeting
A daily Contractor Production Report and QC Report will be completed whenever onsite activities occur and will be submitted as required A copy of daily reports will be retained in the project files and will be
Page | 4
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
included in the project closure report The Charter project management team will prepare weekly summaries of the project progress and status including weekly cost tracking to be distributed to the project stakeholders via email
Page | 5
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
12 PROJECT OBJECTIVES AND SUMMARY OF WORK The work to be performed under this addendum consists of excavation of gt50 lt50 and 1‐10 ppm PCB soils from the former Mine Operations area The areas to be remediated were delineated by the Maine DEP in 2012 These delineations were provided to Charter by CES in the project drawings dated 83012 Excavation of impacted soils is to be performed to depths of 6rdquo 18rdquo 30rdquo and 42rdquo The drawings provided show the Mine Ops area divided up into four separate zones to better organize the remediation effort
Specific details regarding the work to be performed under this contract will be addressed in this plan
13 PROJECT SCHEDULE A project schedule is located in APPENDIX A
Page | 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
20 PROJECT MANAGEMENT amp PLANNING Charterrsquos management plan for organizing work on the Former Callahan Mine Superfund Site combines a responsive organizational structure with an efficient project management process The structure of our project organization includes best‐in‐class management professionals and experienced project personnel who are familiar with MEDEP personnel systems and expectations Our project Team is organized to maximize control and responsiveness to not only meet but exceed the requirements for this contract
Remedial Project Manager Naji Akladiss Maine DEP
Health amp Safety Director Edward Price
Site Health amp Safety Officer Jeff Shea
Project Manager Mike Kunce
Site Superintendent Jeff Shea
Site Quality Control Field Engineer Derek Koenig
Sub Contractors
Project Director Anthony Pisanelli
CHMM
Figure 2‐0 The Charter Team provides clearly defined roles to manage the Contract
Page | 3
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
21 PERSONNEL DUTIES AND RESPONSIBILITIES Figure 2‐1 Charterrsquos Key Personnel and Their Responsibilities
Name Project Role Contact Information
Project Responsibilities
Anthony Pisanelli CHMM Serves as point of contact to Maine Department of Environmental Project Director Protection Mr Pisanelli is responsible for overall project delivery and 25 + Years of Relevant Experience assists with project or contract related issues Mr Pisanelli brings over T 857‐246‐6800 x214 25+ years of project experience apisanellicharterenvironmentalcom Edward Price Health amp Safety Director 19+ Years of Relevant Experience T 857‐246‐6800 x208 epricecharterenvironmentalcom
Reviews and approves Site HASP Supports the execution of the HASP Ensures proper training and equipment as required Has Stop‐Work authority for any unsafe condition Conducts unannounced site safety audits Works directly with the Site Health and Safety Officer to ensure compliance with project Health and Safety requirements
Michael Kunce Project Manager 10+ Years of Relevant Experience T 857‐246‐6800 x224 mkuncecharterenvironmentalcom
Serves as lead point of contact to ME DEP on project scope schedule and execution Responsible for construction performance schedule and budget Mr Kunce is directly responsible for the over sight and development of all work plans associated with the site
Jonathan Simpson Directs TampD operational regulatory and administrative issues Reviews Transportation amp Disposal Facility permits confirms disposalrecycling and overall facility capacity Coordinator Troubleshoots scheduling delays due to weather and facility capacity 10+ Years of Relevant Experience limitations Mr Simpson coordinates transportation and disposal of soil T 857‐246‐6800 x210 containing PCBs metals and other hazardous and non‐hazardous jsimpsoncharterenvironmentalcom materials Jeff Shea Site Superintendent Site Safety amp Health Officer 14+ Years of Relevant Experience T 857‐246‐6800 jsheacharterenvironmentalcom
Manages field activities Responsible for meeting production and schedule requirements Holds daily meetings to outline site remediation activities and daily site health and safety meetings Acts as point‐of‐contact to ME DEP during the work and serves as Site Health and Safety Officer Site work performed by Charterrsquos field personnel and any subcontractors are under the direct supervision of Charterrsquos Site Superintendent Has Stop‐Work authority for Health amp Safety issues
Derek Koenig Site Quality Control Officer Field Engineer 10+ Years of Relevant Experience T 857‐246‐6800 x220 dkoenigcharterenvironmentalcom
Responsible for implementing the Contractor Quality Control Plan
22 MEETINGS AND REPORTS
Progress meetings will be held with MEDEP on a regular basis to discuss progress and any other requirements to perform the work At the request of the Maine DEP Charterrsquos onsite personnel will attend this meeting in person as necessary and as onsite activities allow Charterrsquos Project Manager will attend via phone Charter will prepare meeting minutes and provide a MS Word version to the attendees of the meeting and others as requested by the Maine DEP within one day after the meeting
A daily Contractor Production Report and QC Report will be completed whenever onsite activities occur and will be submitted as required A copy of daily reports will be retained in the project files and will be
Page | 4
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
included in the project closure report The Charter project management team will prepare weekly summaries of the project progress and status including weekly cost tracking to be distributed to the project stakeholders via email
Page | 5
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
20 PROJECT MANAGEMENT amp PLANNING Charterrsquos management plan for organizing work on the Former Callahan Mine Superfund Site combines a responsive organizational structure with an efficient project management process The structure of our project organization includes best‐in‐class management professionals and experienced project personnel who are familiar with MEDEP personnel systems and expectations Our project Team is organized to maximize control and responsiveness to not only meet but exceed the requirements for this contract
Remedial Project Manager Naji Akladiss Maine DEP
Health amp Safety Director Edward Price
Site Health amp Safety Officer Jeff Shea
Project Manager Mike Kunce
Site Superintendent Jeff Shea
Site Quality Control Field Engineer Derek Koenig
Sub Contractors
Project Director Anthony Pisanelli
CHMM
Figure 2‐0 The Charter Team provides clearly defined roles to manage the Contract
Page | 3
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
21 PERSONNEL DUTIES AND RESPONSIBILITIES Figure 2‐1 Charterrsquos Key Personnel and Their Responsibilities
Name Project Role Contact Information
Project Responsibilities
Anthony Pisanelli CHMM Serves as point of contact to Maine Department of Environmental Project Director Protection Mr Pisanelli is responsible for overall project delivery and 25 + Years of Relevant Experience assists with project or contract related issues Mr Pisanelli brings over T 857‐246‐6800 x214 25+ years of project experience apisanellicharterenvironmentalcom Edward Price Health amp Safety Director 19+ Years of Relevant Experience T 857‐246‐6800 x208 epricecharterenvironmentalcom
Reviews and approves Site HASP Supports the execution of the HASP Ensures proper training and equipment as required Has Stop‐Work authority for any unsafe condition Conducts unannounced site safety audits Works directly with the Site Health and Safety Officer to ensure compliance with project Health and Safety requirements
Michael Kunce Project Manager 10+ Years of Relevant Experience T 857‐246‐6800 x224 mkuncecharterenvironmentalcom
Serves as lead point of contact to ME DEP on project scope schedule and execution Responsible for construction performance schedule and budget Mr Kunce is directly responsible for the over sight and development of all work plans associated with the site
Jonathan Simpson Directs TampD operational regulatory and administrative issues Reviews Transportation amp Disposal Facility permits confirms disposalrecycling and overall facility capacity Coordinator Troubleshoots scheduling delays due to weather and facility capacity 10+ Years of Relevant Experience limitations Mr Simpson coordinates transportation and disposal of soil T 857‐246‐6800 x210 containing PCBs metals and other hazardous and non‐hazardous jsimpsoncharterenvironmentalcom materials Jeff Shea Site Superintendent Site Safety amp Health Officer 14+ Years of Relevant Experience T 857‐246‐6800 jsheacharterenvironmentalcom
Manages field activities Responsible for meeting production and schedule requirements Holds daily meetings to outline site remediation activities and daily site health and safety meetings Acts as point‐of‐contact to ME DEP during the work and serves as Site Health and Safety Officer Site work performed by Charterrsquos field personnel and any subcontractors are under the direct supervision of Charterrsquos Site Superintendent Has Stop‐Work authority for Health amp Safety issues
Derek Koenig Site Quality Control Officer Field Engineer 10+ Years of Relevant Experience T 857‐246‐6800 x220 dkoenigcharterenvironmentalcom
Responsible for implementing the Contractor Quality Control Plan
22 MEETINGS AND REPORTS
Progress meetings will be held with MEDEP on a regular basis to discuss progress and any other requirements to perform the work At the request of the Maine DEP Charterrsquos onsite personnel will attend this meeting in person as necessary and as onsite activities allow Charterrsquos Project Manager will attend via phone Charter will prepare meeting minutes and provide a MS Word version to the attendees of the meeting and others as requested by the Maine DEP within one day after the meeting
A daily Contractor Production Report and QC Report will be completed whenever onsite activities occur and will be submitted as required A copy of daily reports will be retained in the project files and will be
Page | 4
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
included in the project closure report The Charter project management team will prepare weekly summaries of the project progress and status including weekly cost tracking to be distributed to the project stakeholders via email
Page | 5
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
21 PERSONNEL DUTIES AND RESPONSIBILITIES Figure 2‐1 Charterrsquos Key Personnel and Their Responsibilities
Name Project Role Contact Information
Project Responsibilities
Anthony Pisanelli CHMM Serves as point of contact to Maine Department of Environmental Project Director Protection Mr Pisanelli is responsible for overall project delivery and 25 + Years of Relevant Experience assists with project or contract related issues Mr Pisanelli brings over T 857‐246‐6800 x214 25+ years of project experience apisanellicharterenvironmentalcom Edward Price Health amp Safety Director 19+ Years of Relevant Experience T 857‐246‐6800 x208 epricecharterenvironmentalcom
Reviews and approves Site HASP Supports the execution of the HASP Ensures proper training and equipment as required Has Stop‐Work authority for any unsafe condition Conducts unannounced site safety audits Works directly with the Site Health and Safety Officer to ensure compliance with project Health and Safety requirements
Michael Kunce Project Manager 10+ Years of Relevant Experience T 857‐246‐6800 x224 mkuncecharterenvironmentalcom
Serves as lead point of contact to ME DEP on project scope schedule and execution Responsible for construction performance schedule and budget Mr Kunce is directly responsible for the over sight and development of all work plans associated with the site
Jonathan Simpson Directs TampD operational regulatory and administrative issues Reviews Transportation amp Disposal Facility permits confirms disposalrecycling and overall facility capacity Coordinator Troubleshoots scheduling delays due to weather and facility capacity 10+ Years of Relevant Experience limitations Mr Simpson coordinates transportation and disposal of soil T 857‐246‐6800 x210 containing PCBs metals and other hazardous and non‐hazardous jsimpsoncharterenvironmentalcom materials Jeff Shea Site Superintendent Site Safety amp Health Officer 14+ Years of Relevant Experience T 857‐246‐6800 jsheacharterenvironmentalcom
Manages field activities Responsible for meeting production and schedule requirements Holds daily meetings to outline site remediation activities and daily site health and safety meetings Acts as point‐of‐contact to ME DEP during the work and serves as Site Health and Safety Officer Site work performed by Charterrsquos field personnel and any subcontractors are under the direct supervision of Charterrsquos Site Superintendent Has Stop‐Work authority for Health amp Safety issues
Derek Koenig Site Quality Control Officer Field Engineer 10+ Years of Relevant Experience T 857‐246‐6800 x220 dkoenigcharterenvironmentalcom
Responsible for implementing the Contractor Quality Control Plan
22 MEETINGS AND REPORTS
Progress meetings will be held with MEDEP on a regular basis to discuss progress and any other requirements to perform the work At the request of the Maine DEP Charterrsquos onsite personnel will attend this meeting in person as necessary and as onsite activities allow Charterrsquos Project Manager will attend via phone Charter will prepare meeting minutes and provide a MS Word version to the attendees of the meeting and others as requested by the Maine DEP within one day after the meeting
A daily Contractor Production Report and QC Report will be completed whenever onsite activities occur and will be submitted as required A copy of daily reports will be retained in the project files and will be
Page | 4
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
included in the project closure report The Charter project management team will prepare weekly summaries of the project progress and status including weekly cost tracking to be distributed to the project stakeholders via email
Page | 5
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
included in the project closure report The Charter project management team will prepare weekly summaries of the project progress and status including weekly cost tracking to be distributed to the project stakeholders via email
Page | 5
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
30 PROJECT ACTIVITIES The following sub‐sections describe how Charter will excavate relocate transport and dispose of soils from the Callahan Mine site The approach proposed is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations This section will also discuss erosion controls to be used and waste management protocols that will be instituted for the different areas onsite
Charter has developed a list of key activities which will outline the work components
Pre‐construction activities Plan preparation and submittal Procurement activities Kick‐off meeting
Mobilization and site preparation Receive temporary facilities and equipment Set‐up of new staging and equipment parking area off of the site access road Mobilize and set‐up water treatment system Clearing and grubbing Ledge removal Erosion control installation Install drainage ditchswale improvements and culverts
PCB‐Impacted Soil Remediation Treat TCLP lead failed soils Concrete debris relocation Dewatering and water treatment Prep existing Ore Stockpile at the Tailings Impoundment to receive 1‐10ppm PCB soils PCB‐impacted Soil excavation Transportation amp RelocationDisposal of PCB‐impacted soils Confirmation sampling as well as offsite QA lab sampling and analysis to be conducted by CES Following placement of 1‐10ppm PCB soils at the Tailings Impoundment the displaced Ore
material will be graded out to blend with existing grades
Demobilization
Post‐construction submittals
31 PRE‐CONSTRUCTION ACTIVITIES Pre‐construction activities consist of developing the Work Plan Addendum initiating procurements and conducting pre‐construction meetings
32 PLANS Plans submitted and approved under the Work Plan developed for Phase 1 are still applicable to this phase of work These plans include Work Plan Health amp Safety Plan Site Management Plan Transportation and Disposal Plan Erosion and Sediment Control Plan and Quality Control Plan A draft Project Schedule has also been included in this addendum for Fall 2012 remediation work
Page | 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
33 MOBILIZATION AND SITE PREPARATION Following contract execution and approval of the Work Plan Addendum Chartersrsquo Field management facilities and equipment will mobilize to the site The existing office trailer and laydown area will still be utilized for communication and internet access as well as site meetings An additional laydown area will also be set‐up off of the site access road leading south out of the Former Mine Ops This will be in the area of MW‐721 See Figure 31 This new laydown area will consist of a conex box with work tools and consumables that will be used for daily execution of the work including poly and PPE In addition to the existing port‐a‐john that is located at the office trailer another port‐a‐john will be setup at the new laydown area This will be done to minimize traffic over contaminated areas in Mine Ops
Figure 31
A turnaround area for incoming trucks will also be installed in MW‐721 Clearing will be done as necessary to allow trucks to back down towards Mine Ops to be loaded until such time that enough contaminated soils have been cleared In addition to the proposed turn around area curved mirrors will also be installed for the safety of the trucks operating onsite The mirrors will allow vehicles onsite to see around the sharp corners leading into and out of Mine Ops CB radios will also be used to coordinate haul trucks going to and from the job site
Page | 7
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
34 CLEARING AND GRUBBING Site clearing consists of machine and hand cutting of brush trees and shrubs flush with the ground surface as required for the installation of the proposed drainage ditch level spreaders and sediment trap as shown on drawing C‐101 Vegetation will be stockpiled onsite Stumps and roots will be removed to a depth of 18‐inches and then buried onsite at a location designated by CES Any debris will be stockpiled in designated areas and recycled or sent out as waste
Initial clearing as described above will be performed by Charterrsquos clearing subcontractor and will include clearing as required for the drainage swale as well as for the new laydown area to be constructed off of the site access road Following this initial clearing any additional tree removal will be performed using onsite equipment and manpower only
35 BLASTING OF LEDGE Prior to the installation of the drainage ditch on the eastern edge of Zone 3 the ledge from the south eastern corner of Zone 3 will have to be blasted This blasting will be done to 2rsquo below the existing grade in the approximately 1200 SF areas shown on the drawings provided by CES dated 83012 Blasting mats will be used to ensure that the blasting is done in a safe manner
If feasible blasting equipment will access the area to be blasted via the clean corridor to be used for the proposed drainage ditch on the eastern edge of the Mine Ops Area If site conditions do not allow this approach blasting equipment will access the area to be blasted by traveling over contaminated areas and be decontaminated appropriately following the completion of their work It has been assumed that there will be no other ledge removal required for any other aspects of this phase of work
Prior to conducting blasting Charter will contact the Brooksville town hall to ensure that local residents are aware that blasting will be taking place onsite
36 RELOCATION OF CONCRETE RUBBLE
The concrete rubble pile will be relocated during the preparation of the site prior to other remediation activities This is required to install the drainage swale to the east of the rubble pile Concrete rubble that is not in direct contact with underlying soils will be loaded into rock trucks and relocated to the Former Sump The Former Sump is assumed to be located to the east of Dyer Cove however this needs to be confirmed by CES
Concrete rubble that is in direct contact with contaminated soils will be cleaned utilizing a dry brush method and relocated to the cells to be constructed for PCB contaminated soils at the Tailings Impoundment
37 CONSOLIDATION OF CONTAMINATION OUTSIDE OF EXCAVATION ZONES
Prior to the install of erosion and sedimentation controls as well as storm water diversion and collection structures select areas of 1‐10ppm PCB contamination will have to be relocated and consolidated to within the excavation zones shown on the drawing C‐101 dated 83012 This will start with area 1‐C‐1 being relocated to within Zone 1 and area 2‐C‐1 relocated to within Zone 2
The small area to the north of the sedimentation trap will also be relocated into Zone 3 The contractor has named this area 3‐C‐1 Per direction of the Maine DEP the 1‐10ppm areas within Zone 4 located at the edge of Dyer Cove will not be remediated or relocated under the scope of this phase of work
Page | 8
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Lastly any contamination underneath the concrete rubble pile will be consolidated andor relocated as needed to accommodate installation of the drainage ditch
38 EROSION AND SEDIMENT CONTROLS Erosion and sediment control measures will be used to effectively control accelerated erosion and sedimentation caused by open excavation areas
Charter will re‐grade approximately 460 LF of the existing site access road starting where the access road meets the southern limits of Zone 1 and extending up gradient Re‐grading will consist of making a crown in the center of the road to sheet water into drainage ditches located on either side of the road Grading will be done utilizing a bulldozer following its mobilization to the site Existing road base material will be used for re‐grading
Following re‐grading of the road water diversion and collection structures will be installed as shown on the drawings including drainage ditches sediment traps and level spreaders Culverts that will be used for water diversion and to drain certain areas will be installed during the remediation of those areas No provisions have been carried for any ledge removal during the installation of drainage features other than what is described in section 35 above Inverts and slopes of drainage features will be field adjusted by CES based on the actual excavation depths and as the road gravel needs to be replaced
Berms of erosion control mix will be installed on the down slope limits of select areas as shown on the drawings Haybales and silt fence will also be installed parallel to the southern edge of the site access road to prevent sediment from running down slope towards Dyer Cove Erosion and sedimentation controls will be inspected daily and maintained as necessary
39 TREATMENT OF TCLP LEAD FAILED SOILS Following the installation of erosion and sedimentation controls soils that have been identified as being hazardous for leachable lead on drawing C‐101 will be chemically treated to remove the hazardous characteristic for leachable lead The chemical that will be used to treat the leachable lead soil is a blend of magnesium oxide percentage of 90 and a phosphate component to bind with the lead of 10 The buffering capacity will help stabilize the lead The material that was used successfully in 2011 to treat leachable lead soil at the Callahan Mine was EnviroBlendreg 9010 We have found that the EnviroBlendreg 9010 product with a dosage rate of approximately 1 will effectively stabilize the soils The EnviroBlendreg 9010 will be delivered to the site in 1‐ton super‐sacks The super‐sacks will be used to transport the treatment chemical to the areas identified in the drawings as needing treatment An MSDS for the treatment chemical can be found in Appendix B
The treatment methods identified below are general approaches that will be utilized with slight modifications as site conditions require or more efficient methods are devised
The treatment process described below is the treatment chemical will be placed into an excavated depression within the Area of Contamination (AOC) wetted down and slightly covered prior to mixing with the soils This method is implemented as a dust control measure and to assist with the dispersion of the reagent while mixing the impacted soils Introduction of water during application merely accelerates the reagents reaction with the soil but is not required during application It should be noted
Page | 9
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
that the MSDS for this reagent states that it ldquowill react with water generating some heatrdquo This has been considered and will not adversely affect the planned operation
The volume of the required treatment chemical will be calculated on a 1 mix ratio The treatment chemical will be mixed mechanically with the use of an excavator bucket until the treatment chemical is evenly mixed within the treatment area
Once treated the soils will be left in place until it has been approved by the end disposal facility and is ready for shipment
Disposal Confirmation Samples
Once soil has been treated post‐treatment confirmation samples will be collected by CES at a frequency of one sample for every 150 tons (quantity to be confirmed by CES) of treated material and analyzed by the MEDEP for TCLP‐Lead The results of this post‐treatment data will be used to determine if that material has been successfully treated or if additional treatment will be required If additional treatment is required the reagent will be applied utilizing the same methods described above with post‐treatment confirmation samples being taken again This will be done until a successful application has been reached The post treatment analysis will be forwarded to the appropriate disposal facility for final approval prior to shipping the material offsite
310 EXCAVATION OF PCB IMPACTED SOILS The following sections will discuss Charterrsquos proposed approach to perform the work required for the excavation of PCB impacted soils Grade control will be approached on an area by area basis in conjunction with CES This will be done due to the inconsistency of the ground surface elevations throughout the Former Mine Ops
The approach proposed below is subject to change due to unexpected site conditions weather and direction from CES and other oversight organizations Activities shown below are dependent upon continuous sampling of completed excavations by CES to ensure that excavation activities are not impeded by onsite or offsite laboratory confirmation sampling of excavated areas
Stockpiling of PCB Impacted Soils
During the course of excavation activities short term working stockpiles will be created in anticipation of truck loading Working stockpiles that will have to be left overnight will be constructed in accordance with drawing C‐301 which was previously submitted and approved in the Phase I Work Plan However in response to comments made by the MEDEP stockpiles will now be covered with 10 mil poly in lieu of 6 mil poly Piles will be sized so that they can be covered with a single piece of poly and weighted To prevent run‐on poly will be toed into the existing ground surface The creation of working stockpiles will be required to ensure that trucks are loaded in a timely manner
Working stockpiles will not be intended to remain through storm events weekends or extended timeframes In the event of an unexpected storm any working stockpile will be secured Long term stockpiles will not be used unless authorized by MEDEP
Manmade Subsurface Obstructions
Any subsurface building foundations that are encountered during the excavation in the Former Mine Ops will be excavated around and will not be broken up or removed under this phase of work Sampling
Page | 10
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
or testing of concrete encountered during excavation activities will be conducted by CES and should not impact the progress of excavation of the area
In the event that concrete foundations require removal in order to complete excavation of PCB impacted soils Charter will mobilize an excavator with a hydraulic hammer to break up concrete into small enough pieces to be removed from the area Small lead time will be required to mobilize equipment to the site
Boulders used for Site Security during Phase I
Some of the large boulders that were placed around the site during Phase I for site security are now located in newly delineated areas of PCB contamination These boulders will be relocated under this phase of work within the cells to be constructed at the Tailings Impoundment This will be done as excavation progresses through the Zones and not as a standalone activity
Preparation of the Ore Stockpile at the Tailings Impoundment
Following site preparation and the installation of erosion and sedimentation controls at the Former Mine Ops area preparation will begin at the Tailings Impoundment for receiving 1‐10 ppm PCB soils
This will consist of excavating cells within the existing Ore stockpile for placement of PCB soils Cells will be utilized to minimize the amount of PCB soils that are exposed at the Tailings Impoundment prior to the material being capped The cells will be encapsulated by a 12oz non‐woven filter fabric to be utilized as a demarcation layer
Material excavated from the cells will be cast upslope to be used as a berm to protect to cell and PCB soils from erosion and being infiltrated from storm water runoff No other erosion and sedimentation control features will be installed at the Tailings Impoundment unless directed by CES Following the completion of the cell this berm will graded back over the footprint of the PCB impacted soil to cap the area and complete the cell The location of the cells will be surveyed by CES Working and final drawings will also be provided by CES
Site Access Road
As remediation progresses through Zones 1 2 3 amp 4 and the existing site access road is removed new clean gravel will be placed following CESrsquos confirmation sampling
This will be done as a means of keeping work progressing across a work zone while confirmation samples were being analyzed by an offsite lab Charter will maintain a stockpile of road base material onsite to ensure that installation of this road progresses in a timely manner and keeps pace with excavation activities Geotextile will be used as dictated by underlying soil conditions to stabilize the road surface for truck traffic The limits of the site access road will be demarcated to ensure that trucks and equipment stay on the road surface Onsite management will be responsible for ensuring that this new clean site access road does not become contaminated during remediation operations
Equipment and truck access to remediation areas located off of the reconstructed site access road will be attained by either placing additional gravel or running equipment over poly or geotextile This will be done to prevent equipment from traveling on areas that have not been confirmed clean by offsite lab confirmation samples and potentially tracking contaminated soils All zones will be excavated in the manner described above
Page | 11
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Excavation of Zone 1
Remediation activities at Zone 1 will begin with the excavation and relocation of 1‐10ppm soils located at the southern end of the zone Excavation will continue through the area until the limits of areas 1‐A‐2 and 1‐A‐3 are reached
Once the limits of areas 1‐A‐2 and 1‐A‐3 are reached 1‐A‐1 will be consolidated into 1‐A‐2 in anticipation of loading trucks with 10‐50ppm soils Poly sheeting will be used to attain access to areas 1‐A‐2 and 1‐A‐3 for loading as needed
Following the loading of areas 1‐A‐2 and 1‐A‐3 for disposal the remaining 10‐50ppm areas and gt50ppm areas will be consolidated in anticipation of truck loading This will be followed by loading of gt50ppm 10‐50ppm and 1‐10ppm areas in that order Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of failed sample locations will be performed Charter and CES will determine an approach to the excavation that will ensure that only soils containing 1‐10ppm concentrations of PCBrsquos are relocated to the Tailings Impoundment
Following the completion of these items and receipt of the offsite QA lab analysis for the confirmation samples taken within the excavation areas the zone will be rough graded to provide positive drainage to the area Additionally to provide a drainage path for storm water and groundwater from Zone 1 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 2
Prior to the start of work at Zone 2 pumps will be used to draw down uncontaminated water that has accumulated in the southwest corner of the zone so that soils can be excavated from the area Water pumped from this area will be discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 Per sampling performed by the Maine DEP this water is not anticipated to be contaminated Methods to prevent turbidity shall be implemented during the pumping Please reference section 312 for dewatering and water treatmentfiltration equipment that Charter will be providing
At the start of the excavation within Zone 2 PCB contaminated soils on the western edge of the zone will be relocated down gradient into the center area of the zone and consolidated within areas of soils with the same classification gt50ppm soil located on the western edge of the zone will be relocated to area 2‐B‐1‐1 as allowed by post treatment sampling of this area
After these soils have been consolidated 1‐10ppm soils will be excavated and relocated to the Tailings Impoundment working from west to east Trucks will be decontaminated as necessary when leaving Zone 2 prior to traversing the site access road across Zone 1 This will continue until the southern and western limits of area 2‐A‐2 are reached Once those limits are reached the remediation of the rest of the zone will proceed as follows
Consolidate remaining gt50ppm areas to 2‐B‐1‐1 Excavate and load out 10‐50ppm soils at area 2‐A‐2 Excavated and relocate remaining 1‐10ppm soils until the western limits of area 2‐A‐1 are reached Excavate and load out 10‐50ppm soils at area 2‐A‐1 Relocate remaining 1‐10ppm soils to the Tailings Impoundment Following the remediation of the zone to a depth of 6rdquo deeper excavations and re‐excavations of
failed sample locations will be performed
Page | 12
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
Once these items are complete and offsite lab confirmations for the excavation areas have been received the Zone will be rough graded to provide positive drainage Additionally to provide a drainage path for storm water and groundwater from Zone 2 a drainage culvert will be installed under the site access road as remediation activities allow
Excavation of Zone 3
Zone 3 will be remediated after the completion of Zone 2 During the excavation of Zone 2 water previously observed flowing from Zone 4 to 3 will be managed by installing an ECM berm in this area at the western edge of the site access road following the remediation of Zone 3 The border of Zone 3 will also be expanded approximately 8rsquo to the north and west so that this boundary does not split the site access road Excavation of Zone 3 will follow the sequence shown below
Excavate and load out the following 10‐50ppm areas 3‐A‐1‐1 3‐A‐1‐2 and 3‐A‐1‐3 3‐A‐2‐1 3‐A‐2‐2 and 3‐A‐2‐3
Consolidate gt50ppm soils within area the zone Excavate and relocate 1‐10ppm soils from west to east Excavate and load out remainder of 10‐50ppm soils Excavate and load out gt50ppm soil
Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
Excavation of Zone 4
Zone 4 will be remediated after the completion of Zone 3 Excavation of Zone 4 will follow the sequence shown below
Excavate and relocate 1‐10ppm soils from south to north until the limits of area 4‐A‐1 are reached Consolidate 10‐50ppm soils within Zone 4 Consolidate gt50ppm soils within Zone 4 Excavate and load out 10‐50ppm soils Excavate and load out gt50ppm soil Excavate and relocate remainder of 1‐10ppm soils from south to north During this activity the
remainder of the contamination within the site access road will be excavated and backfilled with gravel in its entirety to provide access for trucks and equipment The site access road will not be split down the middle between Zones 3 amp 4 as is shown the drawings provided by CES
Outlying 1‐10ppm PCB contaminated areas on the northeastern side of Zone 4 along Dyer Cove are not included in the excavation required under this phase of work Once these items are complete and offsite lab confirmations for the excavation areas have been received the zone will be rough graded to provide positive drainage
311 DECONTAMINATION PROCEDURES During the excavation and handling of PCB‐impacted soils Charter will perform decontamination procedures on personnel trucks and equipment to ensure that tracking of PCB contaminated soils does not occur
Page | 13
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
In addition to the decontamination procedures described in the following paragraphs Charter will also install a permanent decon area on the site access road at the northern limits of the Former Mine Ops This will be used to ensure that vehicles and personnel traversing from the exclusion zones at the Former Mine Ops to the job site trailer and laydown area will be decontaminated
Decontamination of Equipment
Decontamination of equipment will be conducted by first performing a dry decon followed by power washing parts of the equipment that have come in contact with contaminated soils Power washing will occur on HDPE sheeting to ensure all liquids are captured To the extent practical HDPE sheeting which is currently onsite will be used for decontamination of equipment Berms will also be constructed as needed to contain wash water runoff Water runoff will be diverted into a sump and collected Water will then be treated and discharged onsite
In order to minimize the amount of decontamination necessary Charter will effectively sequence work to minimize situations where equipment will have to traverse from higher levels of contamination to lower levels and therefore have to be decontaminated Where applicable excavation andor loading will be performed utilizing only the bucket of the machine so that only that part of the equipment will have to be decontaminated minimizing wash water required
Traversing of equipment from higher concentrations contamination to lower concentrations will be minimized by way of sequencing However in situations where this is necessary for effective continuation of the work equipment will be decontaminated when traversing from a higher level of contamination to a lower level
Decontamination of Personnel
As excavation progresses personnel may be required to traverse between clean and contaminated areas of the job site as well as areas with differing levels of contamination Between these areas contamination reduction zones will be setup
Contamination reduction zones will be set‐up in strategic areas where personnel will be required to travel from areas of higher contamination to areas of lower contamination The zones will be mobile setups and their placement will be adjusted as dictated by site conditions and the progress of the work The zones will consist of the following items
Boot washes filled with decontamination solution (water mixed with an industrial detergent)
Scrub brushes
Absorbent pads for cleaning of tyvek suits as needed
Lined container for disposal of usedheavily soiled PPE
Container with new PPE to replace items too heavily soiled to be effectively cleaned
Absorbent mat to catch any water displaced as personnel step out of the boot wash
These areas will be set‐up so that personnel can enter the boot wash from the area of greater contamination and exit onto an absorbent mat in an area of lesser contamination Boot washes will be emptied and refilled with clean water on a regular basis Water from boot washes will be processed through the onsite water treatment system before being discharged onsite
Page | 14
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
312 DUST CONTROL To control onsite dust Charter will mobilize a water truck to the site during its site mobilization Water to be used for dust control will be pumped from Dyer Cove Action levels for the initiation of dust control are in the approved Site Specific Health and Safety Plan The amount of water used onsite will be sufficient to control dust but not of an amount that may generate any erosion control issues
313 DEWATERING AND WATER TREATMENT
Excavation Dewatering and Water Treatment
Groundwater and storm water runoff that has entered an area excavated during this phase of work and has come in contact with PCB contamination will be collected and treated before discharge Water used for decontamination of trucks and equipment will also be collected and treated Water will be collected from excavations and decon areas by being pumped into either drums or a poly tank and transported to the water treatment system
Water to be treated will be collected and pumped into a frac tank From the frac tank water will be pumped to bag filter units to collect sediment Water will then go through carbon units before being discharged onsite Water sampling will be performed by CES expedited turnaround time will be required on analytical results from water sampling This is required to allow continuous water treatment and discharge
Dewatering of Existing Ponding Areas within the Former Mine Ops
Prior to the start of work at the PCB excavation Zone 2 pumps will be used to draw down uncontaminated water from the pond at the southwest corner of the zone so that soils can be excavated Water pumped from this area will discharged into the wet area on the western side of Zone 1 From there the water will flow through the drainage ditch and culvert in constructed in Zone 1 following its remediation Per sampling of the water ponding in Zone 2 performed previously by others this water is not anticipated to be contaminated and therefore will not be run through the treatment and filtration system described above
314 TRANSPORTATION AND DISPOSAL Prior to excavation activities Charter will chemically treat soils that have failed testing for TCLP lead Following treatment CES will be taking post treatment samples from these areas and submitting them for analysis Expedited turnaround time will be required on TCLP lead samples to ensure that the associated soils will be cleared for excavation and load out during excavation of their respective zones
During excavation Charter will be loading out the PCB‐impacted soils for Transportation and Disposal Depending on available and appropriate equipment Charter will use either a front‐end loader or an excavator
Offsite Disposal
All PCB‐impacted soil with PCB concentration gt50ppm will be transported to
CWM Chemical Services LLC 1550Balmer Road Model City NY 14107
Page | 15
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
All PCB‐impacted soil with PCB concentrations from 10ppm to 50ppm as well as all other waste will be transported to
Waste Management Disposal Service of Maine ndash Crossroads Landfill 357 Mercer Road PO Box 629 Norridgewock ME 04957
Charter has prepared an offsite shipment and disposal plan as part of the Phase 1 work performed in 2011 The content of this plan is still applicable to this phase of work This plan contains proposed disposal facilities permits and proposed haul routes
Transportation of PCB‐impacted soil will follow the procedures established in 2011 Trucking volume and schedule will evolve as excavation progresses through the Zones and contamination levels Maine DEP and EPA will be provided advanced notification of the estimated number of trucks per day for offsite shipment The route to be travelled will be consistent with the previously approved trucking route used for the shipping of soils in the fall and early winter of 2011 School bus pick up times are to be avoided All drivers will be given a safety briefing that includes the importance of safe and courteous driving Contact information and generic waste profile information shall be available in all over 50 ppm trucks for use in the event of any accidents or incidents Maine DEP and EPA will be immediately notified if a truck has an accident is disabled or subject to a police or fire action
Onsite Relocation
All PCB‐impacted soil with PCB concentration from 1‐10ppm as well as all other waste will be transported to the Tailings Impoundment
315 DEMOBILIZATION Prior to demobilization Charter will conduct a site walk with MEDEP to ensure the site is in an acceptable condition If necessary a site punch list will be created and work tasks will be completed to MEDEPrsquos satisfaction
After completion of all excavation activities and grading to provide positive drainage Charter will demobilize from the site which will include the following activities
Decontamination of Site Equipment Disconnection of utilities to site trailers Conduct a final Site cleaning
Charter will demobilize equipment materials and supplies in a safe and controlled manner Trucking during demobilization will be sequenced to minimize impact on local traffic Necessary permits to transport the equipment from the site will be obtained in advance and copies will be provided to MEDEP
Page | 16
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 17
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT A ndash SITE PLAN
Page | 18
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 19
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
NOTES 1 CONSTRUCTION SEQUENCING DETAILS ARE OUTLINED IN TECHNICAL
SPECIFICATION SECTION 01 - 1000 - SUMMARY OF WORK
2 TREELINE SHOWN WAS TAKEN FROM AERIAL PHOTOGRAPHY AND SHOULD BE CONSIDERED APPROXIMATE
3 THIS PLAN DEPICTS TOPOGRAPHY AS FOUND AND SURVEYED BY CES INC ON JUNE 26 2012
4 THE ZONES HAVE BEEN CREATED TO PROGRESS THE WORK BASED ON EXISTING TOPOGRAPHY AND STORMWATER DRAINAGE AND TO OPTIMIZE EROSION AND SEDIMENT CONTROLS TRACKING FROM HIGHER CONCENTRATIONS TO LOWER CONCENTRATIONS SHALL NOT BE PERMITTED
5 6 EXCAVATION LOCATIONS REQUIRES EXCAVATION FROM 0-6 BELOW GROUND SURFACE
LEGEND
EXISTING 1 CONTOUR
EXISTING 5 CONTOUR
PROPOSED 1 CONTOUR
PROPOSED 5 CONTOUR
EXISTING ACCESS ROAD
PROPOSED DRAINAGE DITCH
REMEDIATION PHASE LIMIT
APPROXIMATE TREELINE
REMEDIATION ZONE
TCLP LEAD ABOVE REGULATORY THRESHOLD
PCB CONCENTRATION 1 - 10 PPM
PCB CONCENTRATION 10 - 50 PPM
PCB CONCENTRATION gt 50 PPM
ACCESS ROAD
CONCRETE RUBBLE
PREVIOUSLY EXCAVATED AREA
STAKE BOUNDING EXCAVATION
gt
01
Pre
sque
Isle
Top
sham
549
Mai
n S
tree
t2
Mai
n S
tree
tP
O B
OX
827
Sui
te 2
13P
resq
ue Is
le M
ET
opsh
am M
ET
207
-764
-841
2T
207
-837
-613
0F
207
-764
-841
4F
207
-837
-619
9
Bar
Har
bor
1366
Sta
te H
wy
102
Bar
Har
bor
ME
T2
07-2
88-0
587
F2
07-2
88-0
588
WW
WC
ES
-MA
INE
CO
M
Bre
wer
465
So
Mai
n S
tree
tP
O B
OX
639
Bre
wer
ME
T2
07-9
89-4
824
F2
07-9
89-4
881
Mac
hias
61 D
ublin
Str
eet
PO
BO
X 5
87M
achi
as M
ET
207
-255
-327
0F
207
-255
-836
7
CA
LLA
HA
N M
INE
SUPE
RFU
ND
PR
OJE
CT
BR
OO
KSV
ILLE
MA
INE
REM
EDIA
TIO
N P
LAN
6 E
XCA
VATI
ON
LO
CA
TIO
NS
REMEDIATION PLAN 6 EXCAVATION LOCATIONS 1 = 40
8302012
BBBC ST
AD DSP
5992-09
C-101 1 OF 6
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
ATTACHMENT B ndash TYPICAL DECON PAD DETAIL
Page | 20
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 21
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
HDPE 20-mil Liner
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX A ndash PROJECT SCHEDULE
Page | 22
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 23
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
5
10
15
20
25
30
35
40
Callahan Mine - 2012 DRAFT Schedule
ID Task Name Duration Start Finish Predecessors S M T
Aug 12 12 W T F S S M T
Aug 19 12 W T F S S M T
Aug 26 12 W T F S S M
Sep 2 12 T W T F S S M
Sep 9 12 T W T F S S M T
Sep 16 12 W
1
2 Negotiate Change Order 4 days Tue 82112 Mon 82712
3 Submittals 6 days Mon 82712 Wed 9512 4 Submit Work Plan Addendum 4 days Mon 82712 Thu 83012
Work Plan Review Period 1 day Tue 9412 Tue 9412 4
6 Submit Final Work Plan Addendum 1 day Wed 9512 Wed 9512 5
7 Mobilzation - Pre-con Activities in Mine Ops Area 20 days Tue 9412 Tue 10912
8 Mobilization to Site 2 days Tue 9412 Wed 9512
9 Clearing and Grubbing 5 days Thu 9612 Thu 91312 8
Initial Perimeter Erosion Controls 5 days Thu 9612 Thu 91312 8
11 Road Improvements and Swale Construction 5 days Thu 9612 Thu 91312 8
12 Construct 2 Decon pads at the North and South 1 day Mon 91012 Mon 91012 side of Mine Ops Area
13 Blasting ledge 3 days Mon 91712 Wed 91912
14 Decontamination of Blasting heavy equipment 05 days Thu 92712 Thu 92712 13
Load and relocate concrete debris to sump 1 day Mon 91712 Mon 91712
16 Mobilization of TCLP treatment chem 1 day Thu 91312 Thu 91312
17 Treat TCLP failed areas decon activities between zones
3 days Mon 91712 Wed 91912 16
18 CES to submit post-treatment confirmation samples for analysis and disposal facility
10 days Thu 92012 Tue 10912 17
19 Pre-construction Activites in Taililngs Impoundment Area
3 days Mon 91712 Wed 91912
Initial Perimeter Erosion Controls 1 day Mon 91712 Mon 91712
21 Initial area - Excavate and stage ore material in 2 days Tue 91812 Wed 91912 20 preparation of 1-10ppm Material placement
22 Zone 1 7 days Mon 92412 Wed 10312 23 1-10ppm excavation and placement 2 days Mon 92412 Tue 92512 21
24 10-50ppm TampD 2 days Tue 92512 Wed 92612 23FS-1 day
50plus TampD 3 days Thu 92712 Tue 10212 24
26 Tailings Area - Cover 1-10ppm and excavate new area for Zone 2 Placement
1 day Wed 10312 Wed 10312 25
27 Zone 2 6 days Thu 10412 Tue 101612 28 1-10ppm excavation and placement 4 days Thu 10412 Thu 101112 26
29 10-50ppm TampD 2 days Wed 101012 Thu 101112 28FS-2 days
50plus TampD 3 days Wed 101012 Mon 101512 18
31 Tailings Area - Cover 1-10ppm and excavate new area for Zone 3 Placement
1 day Tue 101612 Tue 101612 30
32 Zone 3 7 days Wed 101712 Mon 102912 33 1-10ppm excavation and placement 3 days Wed 101712 Mon 102212 31
34 10-50ppm TampD 2 days Thu 101812 Mon 102212 33FS-2 days
50plus TampD 3 days Tue 102312 Thu 102512 34
36 Tailings Area- Cover 1-10ppm and excavate area for Zone 4 Placement
1 day Mon 102912 Mon 102912 35
37 Zone 4 7 days Tue 103012 Thu 11812 38 1-10ppm excavation and placement 3 days Tue 103012 Thu 11112 36
39 10-50ppm TampD 3 days Wed 103112 Mon 11512 38FS-2 days
50plus TampD 3 days Tue 11612 Thu 11812 39
41 Tailing Impoundment Landfill 7 days Mon 111212 Wed 112112 42 Place final cover over Zone 4 material and final 2 days Mon 111212 Tue 111312 40
grading of cap 43 Demobilize Equipment from Site 5 days Wed 111412 Wed 112112 42
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 1
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
~I
QJllli- ------mPJ ~lti~~~-~~-~
~-~ - bullbull __~$ ~ ~
lJ
Callahan Mine - 2012 DRAFT Schedule
Sep 23 12 Sep 30 12 Oct 7 12 Oct 14 12 Oct 21 12 Oct 28 12 Nov 4 12 Nov 11 12 Nov 18 12 T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T
Task Progress Summary External Tasks DeadlineProject Callahan Mine Draft Project Sc Date Thu 82312 Split Milestone Project Summary External Milestone
Page 2
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
APPENDIX B ndash ENVIROBLEND MSDS
Page | 24
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
Work Plan Addendum per CO13 | Operable Unit 1 August 2012
Callahan Mine Superfund Site
[This Page Left Intentionally Blank]
Page | 25
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTREC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Product Name(s) ENVIRO BLENDreg L Blends 9010
CAS Number Mixture Chemical Family Inorganic - Mineral General Use A varying mix of Magnesium Oxide Calcium Carbonates and Calcium Phosphates Manufacturer Supplier PREMIER CHEMICALS 300 Barr Harbor Suite 250 West Conshohocken PA 19428-2998
SECTION 2 INGREDIENTS COMPOSITION
Ingredient name Nonhazardous Ingredients
A variable blend of Magnesium oxide Calcium Phosphates
And Limestone amp
CAS Number
1309-48-4 7758-23-8
7758-87-4 16389-88-1
Percent 99-100
IARCNTPOSHA Exposure Limits No Nuisance Particulate Not Otherwise
Regulated OSHA PELTWA 15mgm3respirable 5mgm3 ACGIH
TLVTWA Total dust10mgm3 respirable dust 5mgm3
Phosphoric Acid 7664-38-2 0 ndash 1 No OSHA PELTWA 10mgm3 STEL 30mgm3 as mist
Quartz 14808-60-7 0 ndash 1 Yes ACGIH TLV TWA respirable quartz 005mgm3
Quartz Product may contain a trace of quartz a polymorph of crystalline silica which is classified by IARC as a ldquoKnown Human Carcinogen - Group 1rdquo NTP lists restorable crystalline silica amongst substances which may ldquoreasonably be anticipated to be carcinogensrdquo
SECTION 3 HAZARDS IDENTIFICATION
HMIS HEALTH HAZARD 1 - SLIGHT
FLAMMABILITY HAZARD 0 - MINIMAL
REACTIVITY HAZARD 1 - SLIGHT
PERSONAL PROTECTION B - Glasses Gloves
EMERGENCY OVERVIEW Off-white to gray free-flowing powder Blends high in magnesium oxide will react with water generating some heat Not a fire or spill hazard Low toxicity Dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo
Target Organs Chronic overexposure to respirable dust may cause lung damage Primary route(s) of entry Inhalation Acute effects Excessive exposure to airborne particulate may cause eye and upper respiratory irritation Chronic effects Product dust is classified as a ldquonuisance particulate not otherwise regulatedrdquo as specified by
ACGIH and OSHA The excessive long-term inhalation of mineral dusts may contribute to the development of industrial bronchitis reduced breathing capacity and may lead to the increased susceptibility to lung disease Page 1 --- HAZARD IDENTIFICATION continues on page 2 --- Page 1
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300 HAZARD IDENTIFICATION continued from page 1 Signs amp symptoms of overexposure Eye contact Particulate is a physical eye irritant
Skin contact Low toxicity by skin contact Inhalation Chronic overexposure by inhalation of airborne particulate may irritate upper respiratory system as
well as the throat Ingestion An unlikely route of exposure If ingested in sufficient quantity may cause gastrointestinal
disturbances Symptoms may include irritation nausea vomiting and diarrhea
SECTION 4 FIRST AID MEASURES
Eye contact Flush eyes including under the eyelids with large amounts of water If irritation persists seek medical attention
Skin contact Wash affected areas with mild soap and water Inhalation Remove victim to fresh air If not breathing give artificial respiration Get immediate
medical attention Ingestion Ingestion is an unlikely route of exposure If ingested in sufficient quantity and victim is
conscious give 1-2 glasses of water or milk Never give anything by mouth to an unconscious person Leave decision to induce vomiting to qualified medical personnel since particles may be aspirated into the lungs Seek immediate medical attention
SECTION 5 FIRE FIGHTING MEASURES
NFPA code Flammability 0 Health 0 Reactivity 1 Special 0 Flash point Not Combustible Unusual Fire Hazard Extinguishing Media Product will react with water generating some heat Use sufficient
water to dissipate any excessive heat buildup Hazardous Decomposition Products None Firefighting Instructions Firefighters should wear NIOSH-approved positive pressure self-contained breathing
apparatus and full protective clothing when appropriate
SECTION 6 ACCIDENTAL RELEASE MEASURES
Spill procedures Product is not harmful to the environment Carefully clean up and place spilled material into a suitable container being careful to avoid creating excessive dust If conditions warrant clean up personnel should wear approved respiratory protection gloves and goggles to prevent irritation from contact andor inhalation
SECTION 7 HANDLING AND STORAGE
Storage Store in dry protected storage Do not allow water to get inside containers reaction with water will cause product to swell generate heat and burst its container Exposed unprotected magnesium oxide will absorb moisture and carbon dioxide from the air Minimize dust generation during material handling and transfer
SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION Engineering controls Provide sufficient ventilation in both volume and air flow patterns to control mistdust
concentrations below allowable exposure limits Personal protective equipment The use of eye protection gloves and long sleeve clothing is recommended Respiration protection Provide workers with NIOSH approved respirators in accordance with requirements of
29 CFR 1910134 for level of exposure incurred Hygienic Practices Avoid contact with skin eyes and clothing After handling this product wash hands before
eating or drinking
Page 2 --- MSDS continues on page 3 --- Page 2
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Appearance The grayish-brown free flowing powder odorless Boiling Point Not Applicable Specific Gravity (gcc) Mixture Melting Point gt3800degF (gt2100degC) Volatile by volume 0 Water Solubility Slight lt1 Evaporation rate Not Applicable pH (10 aqueous slurry) 25 - 10 (depending on blend ratio) Bulk Density (lbscuft) 45 - 70 (depending on blend ratio)
SECTION 10 STABILITY AND REACTIVITY Hazardous PolymerizationWill not occur Chemical Incompatibilities The magnesium oxide component is soluble in aqueous acids generating heat and steam
violent reaction or ignition with interhalogens (eg bromine pentifluoride chlorine trifluoride) Incandescent reaction
with phosphorus pentachloride Will react with water generating some heat Hazardous Decomposition Products None
SECTION 11 TOXICOLOGICAL INFORMATION Magnesium Oxide CAS 1309-48-4 Toxic and Hazard Review low toxicity - a nutrient andor dietary supplement food
additive THERAP CAT antacid (Sax) an experimental tumorigen Inhalation of fume (not MgO dust particular) produced upon decomposition of magnesium compounds can produce a febrile reaction and leukocytosis in humans
TOXICITY DATA ihl-hmn TCLo400mgm3 itr-ham TDLo480 mgkg30w-IETA Calcium Phosphate CAS 65996-95-4 Produced by addition of phosphoric acid to phosphate rock Can contain
up to 1 phosphoric acid Phosphoric acid is cited as a human poison by unspecified route Moderately toxic by ingestion and skin contact A corrosive irritant to eyes skin and mucous membranes and a systemic irritant by inhalation (Please note any free phosphoric acid in the triple super phosphate will react with the magnesium
oxide component of the product forming a magnesium phosphate ndash the product will not contain any free acid
TOXICITY DATA No LD50 or LC50 found for oral dermal or inhalation routes of administration Quartz CAS 14808-60-7 Toxic and Hazard Review (Sax) Experimental poison by inratracheal and intravenous
routes An experimental carcinogen tumorigen and neoplastigen Human systemic effects by inhalation cough dyspnea liver effects Listed by IARC as a ldquoKnown Human Carcinogenrdquo Group 1 Listed by NTP
TOXICITY DATA No LD50 in RTECS ihl-hmn TCLo 16 mppcf 8 hrs 179Y-I PUL ihhhmn LCLo 300 μg m3 10 Y-ILVR Other species toxicity data (NIOSH RTECS) inv-rat LDLo 90mgkg itr-rat LDLo 20mgkg ivn-mus LDLo 40mgkg inv-mus 20mgkg
SECTION 12 ECOLOGICAL INFORMATION Ecotoxicological Chemical Fate Information
No data available on any adverse effects of this material on the environment
SECTION 13 DISPOSAL INFORMATION Waste ManagementDisposal This product as manufactured will not exhibit any characteristics of a hazardous
waste and is suitable for landfill disposal Pleased by advised however that state and local requirements for waste
disposal may be more restrictive or otherwise different from federal regulations Consult state and local regulations regarding the proper disposal of this material If however the product has been altered or contaminated with other hazardous materials appropriate waste analysis may be necessary to determine proper method for disposal Waste characterization and disposaltreatment methods should be determined by a qualified environmental professional in accordance with applicable federal state and local regulations
Page 3 --- MSDS continues on page 4 --- Page 3
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Date Prepared 305 Phone PREMIER CHEMICALS 1-800-227-4287 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
SECTION 14 TRANSPORT INFORMATION
US Department of Transportation Not regulated by DOT as a hazardous material No hazard class no label or placard required no UN or NA number assigned
Canadian TDG Hazard Class amp Pin Not regulated
SECTION 15 REGULATORY INFORMATION
SARA TITLE III Section 302 NO (Extremely Hazardous Substances) Section 304 NO (Emergency Release) Section 311 YES (Community Right-to-Know MSDSs or List of Chemicals) Section 312 YES (Community Right-to-Know Inventory and Location (Tier III))
Section 313 NO (Toxic Chemicals Toxic Chemical Release Reporting Form R) TSCA All substances in this product are listed in the Chemical Substance Inventory of the Toxic Substances Control Act CERCLA Hazardous Substance List RQNo California Proposition 65 This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive toxins
SECTION 16 OTHER INFORMATION
ACRONYMS AND REFERENCES USED IN PREPARATION OF MSDSrsquo ACGIH American Conference of Governmental Industrial Hygienists CAS CAS Registration Number is an assigned number to identify a material CAS stands for
Chemical Abstracts Service CERCLA Comprehensive Environmental Response Compensation amp Liability Act EPCRA Emergency Planning and Community Right-to-Know Act of 1986 HMIStrade Hazardous Materials Identification System (National Paint amp Coatings Association) IARC International Agency for Research on Cancer MSHA Mine Safety and Health Administration mgm3 Milligrams per cubic meter NIOSH National Institute for Occupational Safety and Health NFPA National Fire Protection Association NTP National Toxicology Program OSHA Occupational Safety and Health Administration PEL Permissible Exposure Limit (OSHA) REL Recommended Exposure Limit (OSHA) SARA Superfund Amendments and Reauthorization Act TITLE III Emergency Planning and Community Right-to-Know Act
Section 302 Extremely Hazardous Substances Section 304 Emergency Release Section 311 Community Right-to-Know MSDSs or List of Chemicals Section 312 Community Right-to-Know Inventory and Location (Tier III)
Section 313 Toxic Chemicals Toxic Chemical Release Reporting Form R TLV Threshold Limit Values (ACGIH) TWA Time Weighted Average 29CFR1910134 OSHA Respiratory Protection Standard
Page 4 --- MSDS continues on page 5 --- Page 4
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696
MATERIAL SAFETY DATA SHEET PREMIER CHEMICALS MSDS No EB-L Blends
Phone PREMIER CHEMICALS 1-800-227-4287 Date Prepared 305 This Revision 0107
CHEMTRAC 24-Hr Emergency Assistance 1-800-424-9300
REFERENCES Sax N Irving Dangerous Properties of Industrial Materials Ninth Edition Van Nostrand Reinhold Co Inc 1996 Kirk R and Othmer D Encyclopedia of Chemical Technology Third Edition Wiley-Interscience New York NY 1982 Clansky KB Suspect Chemicals Sourcebook 1992-2nd Edition Roytech Publications Bethesda Maryland Sax N Irving and Lewis RJ Hawleyrsquos Condensed Chemical Dictionary Eleventh Ed Van Nostrand Reinhold Co Inc NY Manufacturers Suppliers Material Safety Data Sheets on Raw Materials Used American National Standard for Hazardous Industrial Chemicals - Material Safety Data Sheets - Preparation American
National Standards Institute Inc 11 West 42nd St New York NY 10036
Preparedrevised Mark A Shand March 29 2005
Although reasonable care has been taken in the preparation of the information contained herein Premier Chemicals extends no warranties makes no representation and assumes no responsibility as to the accuracy or suitability of such information for application to purchaserrsquos intended purposes or for consequences of its use
Page 5 --- End of MSDS --- Page 5
- barcode 546696
- barcodetext SDMS Doc ID 546696