SiTE-WiDE OPERATION AND MAINTENANCE PLAN

Former Shell Property Staging and Material Processing Facility

Operable Units 2 to 5 Remedial Action Lower Fox River and Green Bay Site

Green Bay, Wisconsin

Prepared by

Tetra Tech EC, Inc.

Anchor Environmental, L.L.C.

J. F. Brennan Co, Ine.

Boskalis Dolman

AECOM

Prepared for

Appleton Papers Inc.

Georgia-Pacific Consumer Products LP

NCR Corporation

September 2009

Tetra Tech Document Control #LFRR-09-0338

Package Status Date Prepared By Approved Bv Pages Affected

RevO 9/14/09 R. J. Feeney T. L Blackmar all

EPA Region 5 Records Ctr.

Ill 376919

It T E T R A T E C H EC. INC.

Lower Fox River Remedial Action OUs 2-5

CONTROLLED DOCUMENT FORM

CONTRACTOR:

PROJECT NO.:

PROJECT NAME:

DOCUMENT CONTROL NO.

WORK PHASE:

DATE OF DOCUMENT:

DOCUMENT TITLE:

RECIPIENT GROUP:

SPECIFICATION SECTION AND PARAGRAPH NO. OF REQUIREMENT:

RECIPIENT:

METHOD OF DELIVERY:

SUBMITTED MATERIALS:

FILE NO.:

Tetra Tech EC Inc.

106-3876

Lower Fox River Remediation of OUs 2-5

LFRR-09-0338

2B

September 2009

Final Site-Wide Operations & Maintenance Plan

US Environmental Protection Agency

Name Jim Hahnenberg - USEPA

Address Chicago, IL 60604

Phone (312)353-4213

Paper Copy

Plan and Appendices

10.1.1 Site Wide O&M Plan

CONTROLLED DOCUMENT NO.: LFRR-09-0338-006

THIS FORM MUST REMAIN WITH THE ASSOCIATED DOCUMENT

September 2009 Rev. 0

SITE-WIDE OPERATION AND MAINTENANCE PLAN

Former Shell Property Staging and Material Processing Facility

Operable Units 2 to 5 Remedial Action Lower Fox River and Green Bay Site

Green Bay, Wisconsin

Prepared by

Tetra Tech EC, Inc.

Anchor Environmental, L.L.C.

J. F. Brennan Co, Inc.

Boskalis Dolman

AECOM

Prepared for

Appleton Papers Inc.

Georgia-Pacific Consumer Products LP

NCR Corporation

September 2009

Tetra Tech Document Control #LFRR-09-0338

Package Stattis Date Prepared By Approved Bv Pages Affected

RevO 9/14/09 R. J. Feeney T. L Blackmar all

TABLE OF CONTENTS

1.0 Introduction 1 1.1 Objectives 1

2.0 Facility Operations Description 2 2.1 Primary Operations 2

2.1.1 Facility Constmction 2 2.1.2 Sediment Desanding and Dewatering Plant 3 2.1.3 Water Treatment Plant 4 2.1.4 Sheet Pile Bulkhead Wall 4 2.1.5 Waste Transfer and Loading Operations 5

2.2 Support Facilities Operations 6 2.2.1 Indoor 6 2.2.2 Outdoor 6 2.2.3 Electrical Supply and Distribution 7

3.0 Project Organization 9 3.1 Responsibilities 9 3.2 Safety Training 10

4.0 Maintenance Inspection Requirements 13 4.1 Facility Seasonal Startup 13 4.2 Outdoor Areas 14

4.2.1 Sand Staging and Storage Areas 14 4.2.2 River Capping Material Staging Area 15 4.2.3 Storm Water Stmctures 15

4.2.3.1 Pond and Outfalllnspections 15 4.2.3.2 Catch Basins 16 4.2.3.3 Swales 17

4.2.4 Water Treatment Plant Effluent Pipeline & Diffuser 18 4.2.5 Silt Fence 19 4.2.6 Sheet Pile Wall 19 4.2.7 River Shoreline 21

4.3 Indoor Areas 21 4.3.1 Fire Protection and Fire Alarm Systems 21 4.3.2 Overhead Bridge Cranes (3) 23 4.3.3 Petroleum, Oil and Lubricant Storage Area 24 4.3.4 Tmck Wash Area 25 4.3.5 Tmck Scales 26 4.3.6 Conveyors 26 4.3.7 Waste (Filter Cake) Staging Area 27

4.4 Operations Change Over from TSCA to non-TSCA Wastes 28 4.5 Facility Seasonal Shutdown 28

TABLE OF CONTENTS (cont'd)

5.0 Plan Revisions, Updates, and Repair and Inspection Logs 30

6.0 References 31

Drawings Site Layout - STS Drawing Nos. T-01 and T-02 (attached) Electrical Distribution - TtEC Drawing Nos. E-101,102,103 and 104

Appendices Appendix A - Annual Facility Start-Up Inspection Log Appendix B - Building Inspection Logs:

Appendix B-1 - Building A (Sediment Desanding and Dewatering Plant) Appendix B-2 - Building B (Filter Cake Storage) Appendix B-3 - Building C (Water Treatment Plant) Appendix B-4 - Building D (Administrative OfSce) Appendix B-5 - Overhead Doors (all buildings) Appendix B-6 - Exterior of Facility (all buildings)

Appendix C - Outdoor Areas Inspection Logs: Appendix C-1 - Sand Staging and Storage Areas Appendix C-2 - River Capping Material Staging Area Appendix C-3 - Pond and Outfall Areas Appendix C-4 - Catch Basins and Swales Appendix C-5 - Effluent Pipeline and Diffiiser Appendix C-6 - River Shoreline and Bulkhead Wall

Appendix D - Bulkhead Wall Performance Monitoring Plan Appendix E - Indoor Areas Inspection Logs:

Appendix E-1 - Fire Protection and Fire Alarm Systems Appendix E-2a - Overhead Cranes Appendix E-2b - Overhead Cranes Appendix E - 3 - Tmck Wash Appendix E-4a - Tmck Scales Appendix E-4b - Tmck Scales (monthly and annual) Appendix E -5 - Conveyors Appendix E-6 - Waste (Filter Cake) Staging Area

Appendix F - Fire Protection and Alarm System Operation & Maintenance Manual Appendix G - Overhead Cranes Operation & Maintenance Manual Appendix H - Tmck Wash Operation & Maintenance Manual Appendix I - Tmck Scale Operation & Maintenance Manual Appendix J - Conveyor Operation & Maintenance Manual Appendix K - Operations Change Over Appendix L - Aimual Facility Shutdown Appendix M - Equipment Modifications and Repair

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1.0 INTRODUCTION

This Site-Wide Operation and Maintenance Plan (O&M Plan) has been prepared to describe maintenance and monitoring activities required for facility non-process areas and operations at the Fox River Staging and Material Processing Facility (facihty) located at 1611 State Street in Green Bay, Wisconsin. This facility is being developed on approximately 25.6 acres to include a sediment desanding and dewatering plant (SDDP), a water treatment plant (WTP), a fiher cake storage and loading area, administrative offices, and a new bulkhead on the Fox River. The facility is being developed to support the Lower Fox River and Green Bay Site, Operable Units (OUs) 2 through 5, Green Bay, Wisconsin, remedial action commenced in late April 2009 and wiU be completed in approximately 2017.

The property on which the facility is located was a former Shell Oil bulk terminal facility, and is also referred to as the Former Shell Property in project documents.

1.1 Objectives

This O&M Plan describes the monitoring and maintenance activities required for the following areas or items:

• New bulkhead wall constructed on 2.2 acres along the shore of the Fox River, including the wick drain system, sand backfill, and sheet pile wall;

• Stormwater drainage system components, including the stormwater pond, drainage and inlet/outlet pipes, and ditches/swales;

• Sand and scalpings storage area;

• Debris storage and processing area;

• Erosion control features such as silt fences, check dams, etc.;

• Non-process building areas such as the petroleum, oil and lubricant storage area and tmck wash area;

• Marine staging area for dredge and cover/capping equipment and miscellaneous tools; and,

• Non-process building equipment, such as the overhead cranes, HVAC system, tmck scales, and fire protection system.

In addition, this O&M Plan also describes requirements for record-keeping related to non-process inspections, maintenance activities, and modifications to the facility throughout the life of plant operations. Key project personnel responsible for performing the activities described herein are also identified.

2.0 FACILITY OPERATIONS DESCRIPTION

The site is located at 1611 State Street along the west shore of the Fox River in Green Bay, Wisconsin. The site was most recently vacant for approximately 20 years or more. The previous owner. Shell Oil Company, operated a bulk oil terminal facility from the 1930s to the 1980s. The site was selected for its proximity to the Fox River project, river frontage, and access to major arterial transportation routes.

2.1 Primary Operations

The processing plant operations under development at the site are designed to dewater polychlorinated biphenyl (PCB)-impacted sediments dredged from the Lower Fox River from Kaukauna, Wisconsin to the mouth of the Fox River in Green Bay, Wisconsin. This geographic area is referred to as OUs 2-5. The majority of the sediments will be dredged by hydraulic method and pumped via pipeline to the upland processing plant. Some of the sediments may be dredged by mechanical dredge in locations not accessible by the hydraulic dredges.

Dredging of non-TSCA and TSCA materials is planned to avoid any mixing of TSCA and non-TSCA material. Only one type of material - either non-TSCA or TSCA - will be dredged and pumped to the plant at any given time to maintain segregation of these materials.

2.1.1 Facility Construction

Construction of four contiguous buildings, designated as Buildings A, B, C and D, commenced in 2008 and was completed in early 2009. The buildings are adjacent to one another and connected to form one large functional building of approximately 6 acres in size on the western portion of the site. One building houses the SDDP, another houses the WTP, a third building is the filter cake storage and loading area, and the fourth building houses administrative operations. Refer to STS Drawings T-01 and T-02 for the site layout.

The plant is constmcted on a concrete foundation on native soils. Select heavy processing equipment is founded on either an H-pile or drilled shaft concrete foundation system. The plant has a state of the art HVAC system to capture potential fugitive dust particles and vapor emissions from vehicles and plant operations. This system will provide a safe working environment for the plant operators.

The SDDP is designed to process PCB-impacted sediment being dredged from the Fox River. The SDDP separates sand from the sediment and dewaters the remaining sediment (i.e., residue), which is expected to contain the bulk of the PCB contamination. The WTP treats the water collected from the dewatering process before returning it to the river. Filter cake and other contaminated residuals are routed to the filter cake storage area, where they are loaded into tmcks for transport to a disposal facility. Sand recovered from the dredged material will be used behind the sheet pile wall for backfill, shipped offsite for approved beneficial use or disposed of in the appropriate offsite landfill.

2.1.2 Sediment Desanding and Dewatering Plant

The dredged sediment will be pumped at approximately 5% to 15% solids (by weight) via pipeline from the dredges into a distribution box in the processing plant. The distribution box reduces energy in the flow and distributes the sediment slurry onto a scalping screen. This screen removes coarse materials greater than 6 mm in size. These larger particles are deposited in a dedicated and lined roll-off box for temporary storage prior to disposal. The material collected in the roll-off box will be disposed of offsite, at either the TSCA or non-TSCA landfill, depending on the in-situ classification of where it came from in the river.

Sediments and sand less than 6 millimeters (mm) in size are sent through thickener-separators and then through sand separation unit. Particles between 6 mm and 150 microns are separated in the coarse sand separation unit, and particles between 63 microns and 150 microns are separated as fine sand. The coarse and fine sand are then transported by conveyors and deposited in separate piles on an outdoor concrete storage pad on the east side of the plant for testing and temporary storage.

Sediments finer than 63 microns are routed to the residue tank, followed by the pre-thickener tanks. Coagulant is introduced in the Residue Tank located in the SDDP. The sediment fines are dosed with polymer after the residue tank and thickened in the pre-thickener tanks, creating a sludge-like consistency. Additional coagulant may also be added after the Residue Tank, if necessary. The sludge is pumped to the sludge holding tanks for batch processing prior to being pumped to the membrane presses. After the sludge holding tanks, polymer is again added to fiirther enhance dewatering of the sludge.

The purpose of the polymer flocculant and coagulant additives is to cause sediment particles to agglomerate, meaning the individual, fine particles will clump together in larger masses, making the filter press dewatering operation more efficient and producing a drier, firmer filter cake. The coagulant is effective for very fine particles and the polymer flocculant works on the larger ones. Introducing these additives to the tanks ahead of the filter presses causes the solids to settle, resulting in the withdrawal of a thickened underflow sludge at perhaps 25 % to 30% solids content, so less water needs to be mn through the presses. The supernatant (overflow) from the large pre-thickener holding tanks is clearer because of the action of these additives, containing fewer solids and making it easier to process through the water treatment plant, where it is filtered before being retumed to the river.

The conditioned sludge is pumped from each sludge holding tank into two large plate and frame membrane filter presses. The sludge is injected into a mold within the press plates. Once a press is loaded with wet sediments, the press is activated and the plates are put under 225 psi pressure to squeeze the water from the sludge. There are four sludge holding tanks present that can provide thickened sludge to eight fiher presses. The filter presses provide significant dewatering of the sludge and then release the material as a filter cake onto conveyors that transport the material to the filter cake storage area for staging and loading into transport tmcks. The transfer

and loading operations are discussed in section 2.1.5. The extmded water is collected through a process collection system and transported to the water treatment plant.

2.1.3 Water Treatment Plant

The water treatment plant receives water collected from the dewatering process and treats the water prior to discharge to the Fox River. The water is initially passed through a sand (multi­media) filter system, followed by a bag filter system, a carbon adsorption system, and finally a cartridge filter system. The treated water is then pumped to an effluent storage tank for equalization. The water is also monitored for quality in accordance with the effluent standards presented in the 100 Percent Design Report (Tetra Tech et. al., 2008). Some of the treated water is recycled for process usage in the SDDP. The excess water is pumped via an 18-inch pipeline from the storage tank to the effluent diffiiser in the Fox River just north of the Canadian National Railway trestle crossing.

2.1.4 Sheet PUe Bulkhead Wall

A bulkhead wall will be constmcted along the shoreline of the Fox River to serve as a material storage and loading area for capping and cover materials. This wall will be constmcted beginning in 2010 and will be available for stockpiling of capping and cover materials in 2011. It will also provide berthing for barges along the eastern and northern sides of the bulkhead. Original plans were to begin constmction of the sheet pile wall in 2009 but the lower than expected production of separated sand led to a deferment until 2010.

Constmction of the bulkhead wall includes the installation of a wick drain system after placement of sand backfill to elevafion 577 feet North American Vertical DaUim 1988 (NAVD88). The wick drain system will require periodic monitoring and removal of consolidation water. Twelve collection sumps, of approximately 750 gallons capacity each, will be installed to collect water extracted by the wick drains that accumulates in the drainage layer (see drawing 11 of 13 in the PND and STS/AECOM set of sheet pile design drawings, December 2008) and is conveyed by drainage piping to the sumps. Following installation of the wicks, piping, sumps and drainage layers, up to 1,000 gallons per day may be collected initially in each of the sumps, although this quantity may be less based on the efficiency of the system. The daily volume of water removed by the wick drain system is expected to decrease over time during the eighteen month period it will be used.

Sump overflow is not a concem; however the wick system will fiinction more effectively if the water level is kept low. Tetra Tech will place standard float controlled sump pumps in each of the twelve sumps and route flexible hose discharges from two groups of six sumps to either of two transportable tanks (or perhaps tanker tmcks). One tank (or tanker tmck) will be located in the southeast area of the site, near the bulkhead wall, and the other in the northeast area. The tanks will be nominal 20,000 gallons each or greater; therefore, depending on the volume of water removed by the wick system, each of the tanks may be emptied two to three times per week initially. The tanks (or perhaps tanker tmcks) will be transported over to the processing building

and the contents pumped off into the Overflow Tank for processing through the SDDP and the WTP. The flowrate from the Overflow Tank into the SDDP will be controlled to avoid exceeding the maximum design flow of 6,000 gpm.

The water collected in the wick drain sumps is expected to be clean. However, Tetra Tech will collect samples from each tank (or tanker) load transported to the Overflow Tank for the initial two months and analyze for PCBs, pH, TSS, arsenic and lead, TPH and PAH constituents. If, after two months of sampling, no exceedances to allowable State discharge standards are detected, Tetra Tech will request approval from the WDNR to begin discharging the wick drain system water to the river from the sump pumps, either directly or via the stormwater outfall.

Following the wick drain installation, in late 2010 or early 2011, additional sand backfill or other suitable backfill material will be placed to approximately elevation 590 feet NAVD88, and the area will be capped with clean cover materials. Settlement plates, strain gauges, and inclinometers will be installed to monitor settlement and movement of the bulkhead area and sheet pile wall. Installation of the sheet pile bulkhead wall is expected to be completed in 2011.

2.1.5 Waste Transfer and Loading Operations

The filter cake material conveyed from the presses is distributed by a radial stacker conveyor in the filter cake storage area. There is approximately 65,000 square feet (sf) available for storage of filter cake material inside the building. The filter cake is stockpiled by the radial stackers in each of three bays in the building. Rubber tired front end loaders are used to load the transport tmcks inside the storage building.

Filter cake transport trucks are required to follow a specific traffic pattern through the filter cake storage and loading area. The empty tmcks enter the site at the north gate and proceed to the northwest side of the storage building. On the very far west end of the plant on the north side, there is an overhead door entryway for the transport tmcks to enter the loading facility. The tracks pull into the building and park on one of two track scales inside the building for loading. A control room inside the storage building allows for monitoring and control of track loading and weighing activities by an assigned facility operator.

The filter cake is loaded into haul tracks. Non-TSCA filter cake (derived from areas of the river having <50 ppm PCB) is currently transported by semi-tractor-trailer tracks in sealed and covered trailers to the Veolia Hickory Meadows Landfill near Hilbert, Wisconsin. TSCA filter cake (derived from areas of the river having >50 ppm PCB) is currently transported to the Environmental Quality (EQ) landfill in Belleville, Michigan using sealed and covered trailers. The trailers used for both non-TSCA and TSCA materials have a gasket at the closure surface and double locking tailgate mechanism to prevent leakage. As an alternative, other appropriately permitted landfills are also being evaluated for use in addition to the EQ facility.

There are two track scales in the storage and loading building, allowing two tracks to be loaded simultaneously. The tracks are weighed during loading to prevent overloading and avoid re-handling excessive weight loads. Once a track is loaded, it is examined for cleanliness on the sides and top of the tracks and any visible material is removed. The trailer is then covered and the tailgate seal closure verified.

Tracking and documentation of waste transport is required by the federal and state solid waste, hazardous waste, TSCA PCB, and US DOT transportation and hazardous materials regulations. Non-TSCA waste is classified as solid waste subject to the requirements in WDNR regulations (NR 500). TSCA waste is classified as PCB waste subject to the requirements in 40 CFR 761. For TSCA wastes, a Uniform Hazardous Waste Manifest and a weigh ticket are required. For non-TSCA wastes, a Shipping Paper/Special Waste Manifest Ticket and a weigh ticket are required.

The traffic lane of the haul tracks within the loading facility is constantly observed for fiigitive filter cake and cleaned so as to minimize tracking by the haul tracks.

Upon loading and covering, tracks then roll through a wheel wash before leaving the loading facility. Each track is inspected for filter cake that may still be on the exterior or tires of the vehicle. The transport manifest is then completed and submitted for each load before it is allowed to leave the site for the appropriate disposal facility.

Transporters adhere to the landfill-specific rales for access and unloading of wastes at either the TSCA or non-TSCA landfill, as appropriate. When tracks enter the landfill facilities, drivers are informed about and abide by site-specific traffic control procedures for each landfill. Before exiting the facility, tracks are visually inspected and decontaminated, as needed, to remove any residue on the exterior of the track. The receiving landfill coordinates and manages incoming track traffic such that delays and traffic impacts are minimized. Green Bay Processing Facility operations persormel coordinate delivery of waste with offsite landfills in advance of shipments so that they are informed about the composition, delivery method, and schedule for the waste. Waste profiles and supporting documentation (e.g., sample results) are prepared, signed by the Generators, and forwarded to the landfills in advance of shipment, as required.

2.2 Support Facilities Operations

Additional non-process operations that are not directly involved in the processing of the sediments exist at this location and include office/administrative areas, electrical distribution systems, the storm water management system, the sand storage area,

2.2.1 Indoor

Offices will be located in the southwest area of the processing plant for support staff, record­keeping, public relations, operations oversight, planning, and sample preparation and storage. Office maintenance and upkeep will be performed using contracted service firms.

2.2.2 Outdoor

Outdoor support facilities include an outdoor concrete based staging area, with side walls and a water collection sump, for storage of oversized (greater than 6 mm) dredged materials (to be contained within roll-off boxes) and stockpiling of processed sand that will be used beneficially after being tested for total PCBs.

An isolated area in the far northeast comer of the property is dedicated for staging large debris that is encountered in the river during dredging operations. The debris is then loaded into the appropriate haul tracks for transport to a recycling center (if non-porous and decontaminated) or to the appropriate final disposal facility.

The eastern side of the former Shell property, near the bulkhead wall, will be utilized as a marine staging area for dredge and cover/capping equipment and associated miscellaneous equipment and tool storage. Cover material staging areas are located on the eastern portion of the facility nearest the river. This is where imported capping materials will be stored and loaded onto barges for placement in capping and sand cover areas of the Fox River after dredging has been completed or for areas that get capped in lieu of dredging based on low PCB contamination level.

The entire site is designed to meet the current storm water ranoff control standards for the City of Green Bay. On the western portion of the project site, around the processing plant, surface stormwater is collected in a network of catch basins and piping. The stormwater is transmitted to a stormwater detention pond. This basin is designed to remove up to 80 percent of total suspended solids (TSS). The basin then discharges to the Fox River through an outfall pipe.

The stormwater from the roof of the building has been waived from TSS reduction treatment by the City of Green Bay provided the water is kept separate from the surface stormwater until the surface stormwater has passed the settling pond. This is accomplished with a fiilly independent network of underground collection and transmission pipelines. The roof drain discharge water joins the stormwater discharge water in a manhole just southeast of the stormwater detention pond, and the combined flow is then discharged to the Fox River.

Outdoor dredged material pipelines are primarily ran below ground from the river to the processing plant. Roadway crossings have been designed to allow for maintenance or replacement of the pipelines without interraption to the traffic pattems on the site.

The western portion of the site traffic route is paved around the processing plant to control fiigitive dust from on-site traffic and to prevent tracking of soils onto the public roadways and provide low maintenance access to the load out area of the processing plant.

The roadways on the eastern portion of the facility are improved gravel surface with a top layer of

compacted, recycled asphalt to provide flexible low maintenance access to the staging areas. The

recycled asphalt topping will help keep fiigitive dust from vehicle traffic to a minimum.

2.2.3 Electrical Supply and Distribution

The Fox River SDDP and WTP plant incoming power is 25 KV, three phase, 60 Hz, supplied by Wisconsin Public Service Corporation (WPSC) from a State Street 25 KV overhead line. Four step down transformers supply the facility electrical power distribution system at 480 volt, three phases, 60 Hz. The four pad mounted step down transformers were provided and installed by WPSC.

Transformer XFR-001 and XFR-002 (2.5 MVA each) supply 480 volt power to the SDDP Electrical Room located at northeast comer of the SDDP area. Two 480 voh switchboards, SB-101 and SB-102, supply power to the three SDDP control cabinet rooms. These control cabinet rooms supply power to the filter presses, sand separation and process water equipment. Motor control center MCC-101 supplies power to the HVAC system including four 100 HP exhaust fans, air makeup units and gas heaters for the filter cake storage area of the facility and the SDDP area.

Transformer XFR-003 (2.5 MVA) supplies 480 voh power to the WTP Electrical Room located at east-south wall. One 480 volt switchboard SB-201, supplies power to the WTP equipment and Administration section of the facility. Motor control center MCC-201 supplies power to the all pumps and HVAC equipment associated with WTP process. The Administration section of the facility has its own Electrical Room, with 480 volt, three phase power supplied from switch board SB-201.

The track scale and track wash system equipment are powered from the WTP electrical room.

Transformer XFR-004 (1.5 MVA) will supply power to the outdoor switchboard SB-004, which supplies power for roadway lighting, other auxiliary services at the dock area (e.g., steam cleaning, power-washing, etc.) and the future dram and slurry tank equipment, associated with mechanical dredging operations, located in the dock area. Transformer XFR-004 and its switchboard are located northwest of the stormwater detention pond.

Building lighting is supplied at 277 volt. Lighting fixtures are metal halide.

Electrical power distribution details are shown on Tetra Tech electrical one line diagram drawings E-101, E-102, E-103 and E-104.

3.0 ORGANIZATION

The organizational stracture for the Lower Fox River RA project is shown on Figure 3-1 • The Project Manager is ultimately responsibility for on-site maintenance and monitoring activities, and will designate project personnel to perform these activities.

3.1 Responsibilities

Mr. Ray Mangram is the Project Manager and is responsible for the overall operations of the facility during the project. Mr. Mangram will supervise the key technical, operations production, staff performing maintenance and monitoring activities to ensure a successful and compliant project. Key personnel responsible for various maintenance and monitoring activities are as follows:

Project Manager: Ray Mangram - responsible for overall site operations, maintenance and

monitoring activities.

Dredging Project Manager: Greg Smith, J.F. Brennan - responsible for operations and maintenance associated with dredging equipment, as described in the Operations and Maintenance Plan for Dredging {i .Y. Brennan, 2009).

SDDP Project Manager: Martijn Luth, Stuyvesant Dredging Inc. (SDI, the U.S. subsidiary of Boskalis Dolman) - responsible for all operations, maintenance and monitoring activities associated with the SDDP, as described in the Sediment Desanding and Dewatering Plant Operations and Maintenance Plan (Tetra Tech EC, Inc. and Boskalis Dolman nl, 2009).

WTP Project Manager: Richard Feeney, PE, responsible for all operations, maintenance and monitoring required for the WTP, as described in the Water Treatment Plant Operations and Maintenance Plan (Tetra Tech EC, Inc., 2009).

The dredging, SDDP and WTP operations and maintenance activities are described in the plans referenced above, and are not discussed fiirther herein. Personnel responsible for operations and maintenance of site areas described in this O&M Plan are identified below.

Sheet Pile Bulkhead Wall Operations and Maintenance: Operations will be performed by Tetra Tech and J.F. Brennan under the direction of Ray Mangram. Monitoring will be performed by Tetra Tech and/or by AECOM, and maintenance will be performed by Tetra Tech (backfill) and J.F. Brennan (sheeting).

Storm Water Management System: Inspections are performed by a Site Engineer, operations employee or a QA/QC representative, under the direction of the Quality Manager or his designee. Maintenance activities are performed by site personnel or by a subcontractor (depending on the nature of the activity) as directed by Brian Delaney, Deputy Project Manager.

Sand Storage Area: Inspections are performed by a Site Engineer, operations employee or a QA/QC representative, under the direction of the Quality Manager or his designee. Maintenance activities are performed by site persormel or by a subcontractor (depending on the nature of the activity), as directed by Brian Delaney, Deputy Project Manager.

Waste Transfer and Loading Area: Operations will be performed as directed by Ray Mangram. Inspections are performed by a Site Engineer, operations employee or QA/QC representative, under the direction of the Quality Manager or his designee. Maintenance activities are performed by site personnel or by a subcontractor (depending on the nature of the activity), as directed by Brian Delaney, Deputy Project Manager.

Electrical Distribution System: Maintenance are contracted for, as needed.

Roads and Other Outdoor Areas: Inspections are performed by a Site Engineer, operations employee or QA/QC representative, under the direction of the Quality Manager or his designee. Maintenance activities are performed by site personnel or by a subcontractor (depending on the nature of the activity), as directed by Brian Delaney, Deputy Project Manager.

3.2 Safety Training

Safety and safety training is a key component to a successfiil operation. New personnel are required to complete a thorough safety orientation class, as required by OSHA 1910.120, which identifies site specific procedures, reporting, actions and hazards. Safety training is lead by the Safety Supervisor, or his qualified designee. The Safety Supervisor reports directly to the Project Manager.

Operations training are paramount to safe operations. Individuals working at this facility receive training specific to their assigned task and are licensed as required by the State of Wisconsin. Individuals will not be allowed to operate any equipment or be allowed into the operations facility without an escort until they have successfiilly completed the appropriate training. Operations training will be the responsibility of the Training Supervisor and will report directly to the Project Manager.

Operating and maintenance personnel enter the processing building through a door in the parking area leading to the change/locker room. Employees change into the required PPE there before heading into the filter cake building and on to their specific work location within the processing building. The only exception to this is personnel who remain in the administration building or escorted visitors that may be admitted to the SDDP building through the door along the north wall, near the east end. These visitors are allowed to walk up and down the stairway leading to the SDDP break room and control room for observation purposes.

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An Exclusion Zone (EZ) is designated and demarcated in the filter cake building for the area where this material is stockpiled. A Contamination Reduction Zone (CRZ) is set up to allow employees leaving the EZ to decontaminate. The remainder of the filter cake building, including the track scale room, the track scales and the track wash, are part of the Support Zone. The filter press deck is also an Exclusion Zone during normal operations, as well as the area of the sand slab where oversized scalped materials are managed.

Operations and maintenance staff leaving at the end of their shift proceed into the locker/change

room to remove PPE, shower and change into street clothes.

The administration office building is classified as a support zone except for the laboratory prep rooms, which have EZs established where samples are handled. Decontamination provisions will be provided for employees and tools or equipment.

All visitors to the project site with a need to enter the processing facility are required to check in with Tetra Tech's Health and Safety Manager or his designee. These visitors are given a brief orientation of the hazards present and basic safety precautions before being allowed to enter the processing areas of the facility (Buildings A, B or C). If the length or nature of their visit does not allow or require that more extensive site specific health and safety training be provided, visitors will be escorted by a project employee who has been fially trained and authorized for unrestricted access within the operations areas.

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Agency/Oversight Team Jay Grosskopf

Corporate H&S Phil Bartley

Region 5 EPA Jim Hahnenberg

Respondents ' Representative

Denis Roznowski (Foth)

WDNR Bruce Baker

Order Respondents Appleton Papers, Inc

NCR Georgia Pacific

Respondents ' On-Site

Representative Jim Hutchison

(Foth)

T

TtEC Project Coordinator Steve McGee

Senior Project Manager Ray Mangrum

Environmental Safety Manager

Grey Coppi

Corporate Project Controls

Dan Miseiany

H&S Manager Bill Welch

Corporate Director Quality Programs

Mike Nicol

Project Controls James Phillips

RP's Project Coordinator Phase 2B RD/RA

Terri Blackmar, PE

• J

Deputy Project Manager Brian Delaney

Quality Manager Kevan McCaslin

H&S Assistant Trista Groth

Quality Assistant

Technical Director Clay Patmont

(Anchor)

Compliance

Chris Hylemon QAPP Manager

Jon Gabry,

Construction Manager Mike Estess

Quality Inspectors

Dredging Project Manager

Greg Smith (J.F. Brennan)

Procurement Vanessa Paolini

Lead Scientist

Gary Braun

Project Scientists

Lead Engineers Richard Feeney, PE

Paul LaRosa (Anchor) Joe Francis

H. Van Dam (Boskalis) Harish Rana PE

SDDP Project Manager

Martijn Luth (Boskalis)

Project Engineer

W T P Project Manager

Richard Feeney PE

Field Engineer

® TETRATECH EC, INC

Line of Communication

Line of Authority

Figure 3-1 Project Organization Chart

Phase 2B Work Plan for Remedial Action

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4.0 MAINTENANCE INSPECTION REQUIREMENTS

Facility maintenance requirements are performed by Tetra Tech or its assigned subcontractors, as identified in Section 3.1. The observations will be recorded on the forms found in the Appendices of this document and maintained by the QA/QC Department. Items requiring repair or maintenance shall be brought to the attention of the Project Manager and recorded on the appropriate form. Once the repair or maintenance activity has been completed, the Project Manager shall document the data on the form and insert the report into the appropriate section of this document for record keeping.

4.1 Facility Seasonal Start Up

Prior to the annual start up of the processing plant, the facility will be thoroughly inspected. Observations will be recorded on the start-up inspection log presented in Appendix A. Maintenance or replacement of significant items will be catalogued. The follow items will be inspected and repaired, if needed, prior to annual operations start up:

• Doorways and overhead doors for proper operation and clearance.

• Exit signs for standard and back up lighting

• Site-wide interior and exterior emergency lighting

• Fire alarm system - this will require testing as well

• Track scales and perform calibration

• Overhead cranes

• Floor slab in filter cake storage building for cracks

• Track wash floor area for cracking and piping for leaks - this shall be filled and tested

In addition, the following activities shall be performed prior to start-up:

Clear the sand pad of excess snow and ice. Inspect the trench drain grates for wear and the trench drain outlets for obstmctions.

Check all interior drain systems for obstmctions and pump operation.

Lubricate and test mechanical operations equipment.

Inspect sand trap to ensure it is clean and free of ice and snow

Install sand trap pump and test the operation of the float and pump.

Inspect the building shell for ice or snow damage

Inspect the roof gutters and downspouts for blockage or damage.

Inspect the HVAC units for obstmctions or damage from ice/snow.

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o Verify the materials staging area is free of ponded water, ratting.

• Verify that the containment berms for the dredging debris area are in good condition and vegetated.

The four buildings that comprise the material processing facility are to be inspected annually, prior to the commencement of operations, and the observations will be documented on the inspection logs contained in Appendix B-1 through B-4 for each of the four buildings. In addition, the various overhead doors installed in each of these buildings are to be inspected annually and the observations noted on Appendix B-5. Follow-up monthly inspections of the exterior of the facility are to be performed in accordance with Appendix B-6.

4.2 Outdoor Areas

The additional maintenance items described in the subsections below shall be completed and documented by Tetra Tech on the outdoor support areas and equipment. These activities will be documented on the Inspection Logs in Appendix C.

4.2.1 Sand Staging and Storage Areas

The outdoor sand staging and storage areas include the sand slab, sand trap and stock pile area on the north central portion of the site. The following operational guidelines will be followed for these areas:

Sand slab trench drains shall be free of obstraction.

Sand shall not accumulate between the sand slab push wall and building.

Cracks in concrete slab of the sand slab area shall be monitored. Corrective action will be taken for cracks exceeding % inch in width.

Sand trap sediment level shall not exceed one foot in depth.

Sand trap pumps shall operate properly at all times.

Sand staging area shall be free from ponded water and vehicle rats.

Fugitive sand shall be prevented from entering stormwater ditches.

Silt fence around sand staging area shall be in good condition.

These areas will be observed and documented on a weekly basis for adherence to these

guidelines, and corrective action performed as soon as possible during operations. These

activities will be documented on the Sand Staging and Storage Areas Inspection Log in Appendix

C-1.

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4.2.2 River Capping Material Staging Area

The river capping material staging area includes the sheet pile bulkhead wall and upland area to be used for storage of capping and sand cover materials. The following items shall be observed and corrective actions incorporated and documented by Tetra Tech on a monthly basis during operations:

• Area is free from vehicle rats.

• Fugitive dust is controlled.

• Runoff from stockpiles is controlled.

• Storm water ditches are free of debris and litter.

• Access roads are maintained.

• Traffic controls are in place, as needed.

These observations will be documented on the River Capping Material Staging Area Inspection Log in Appendix C-2.

4.2.3 Storm Water Structures

The following post-development maintenance items will be performed by Tetra Tech.

4.2.3.1 Pond and Outfall Inspections

Tetra Tech will document and maintain these inspection and maintenance activities. Design plans will be utilized for reference during inspections. Inspection and maintenance activities associated with elements of the storm water management system will be documented on the forms provided in the facility's Storm Water Pollution Prevention Plan.

On a monthly basis, from April through November, at a minimum:

• Inspect the detention pond for collected debris and sediment that may prevent the pond from functioning as intended.

• Inspect exposed culvert barrels for accumulation of debris or sediment that may obstract free flow. Observe for evidence of erosion at outfalls due to concentrated flow.

• Inspect the detention pond outlet stracture for collected debris on the trash rack and grate on the exterior of the outlet stracture. Also inspect for collected debris in the orifice and weir on the interior of the outlet stracture.

• Inspect the detention pond for collected debris within the pond. Observe the condition and integrity of the side-slope soils, and the establishment of vegetative cover that will provide erosion protection.

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» Inspect erosion control practices around maintained stockpiles for accumulated sediment or evidence of erosion due to concentrated flow.

• Inspect landscaped areas to provide the maximum benefit of vegetative cover.

• Inspections should also be conducted directly following, or after, significant thawing events throughout the winter months. Inspections should be extended in the case of an 'early spring' or a 'late winter'.

On an annual basis:

• Measure sediment accumulation in the detention pond. Remove accumulated sediment every five years, or when the main pool has been reduced to three feet of depth or less.

These observations will be documented on the Pond and Outfall Areas Inspection Log in Appendix C-3.

As needed:

• Inspect the condition of the pond, and erosion controls after a storm event involving >0.5 inches of precipitation over a 24-hour period. Document such inspections, as applicable, on the Pond and Outfall Areas Inspection Log in Appendix C-3.

Corrective Action

As required:

• Remove litter and debris to ensure proper operation.

• Remove accumulated sediment from the detention pond, and outlet stracture, and process this sediment in the sediment processing plant.

• Repair and re-seed bare areas intended to have vegetative cover.

• Place stone riprap or erosion matting at locations eroded from concentrated flows.

• Repair or replace erosion control measures around maintained stockpiles.

• If pond or side slopes exhibit slumping and/or erosion - regrading, riprap

replacement and re-vegetation may be required. Complete the appropriate

corrective action in a timely manner.

4.2.3.2 Catch Basins

Tetra Tech will document and maintain these inspection and maintenance activities.

Design plans will be utilized for reference during inspections.

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On a monthly basis, from April through November, at a minimum:

• Inspect the catch basins for collected debris and sediment that may cause the basin to not fiinction as intended.

• Inspect the catch basins to ensure it is not overflowing, or discharging in a manner that it was not intended to.

• Inspect erosion control practices around the catch basins for accumulated sediment or evidence of erosion due to concentrated flow.

• Inspect landscaped areas to provide the maximum benefit of vegetative cover.

On an annual basis, if applicable:

• Measure sediment accumulation in the catch basins. Remove accumulated sediment every five years, or when the main basin has been reduced to 50 percent of original depth.

As needed:

• Inspect the condition of the catch basin, and applicable erosion controls after a storm event involving >0.5 inches of precipitation over a 24-hour period.

Corrective Action As required:

• Remove litter and debris to ensure proper operation.

• Remove accumulated sediment from the catch basins swales, and process this sediment in the sediment processing plant.

• Repair and re-seed bare areas intended to have vegetative cover.

• Repair or replace erosion control practices around catch basin, if necessary.

• If side slopes of the basin exhibit slumping and/or erosion - regrading, riprap replacement and re-vegetation may be required. Complete the appropriate corrective action in a timely manner.

4.2.3.3 Swales

Document and keep these inspection and maintenance activities, on record. Utilize design plans for reference during inspections.

On a monthly basis, from April through November, at a minimum:

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o Inspect the swales for collected debris and sediment that may cause the swale to not fiinction as intended.

• Inspect swale vegetation to observe establishment and cover related to erosion protection.

• Inspect swale for evidence of erosion due to concentrated flow.

• Inspect all erosion control measures that may pertain to the swales, for

accumulated sediment or evidence of erosion due to concentrated flow.

• Inspect landscaped areas to provide the maximum benefit of vegetative cover.

As needed:

• Inspect the condition of the pond, and erosion controls after a storm event involving >0.5 inches of precipitation of over a 24-hour period.

These observations will be documented on the Catch Basins and Swales Inspection Log in Appendix C-4.

Corrective Action

As required:

• Remove litter and debris to ensure proper operation.

• Remove accumulated sediment from the swales, and process this sediment in the sediment processing plant.

• Repair and re-seed bare areas intended to have vegetative cover. Any repaired areas within the range of concentrated flow will need to be stabilized with erosion control matting.

• Place stone riprap or erosion control matting at locations eroded from concentrated flows.

• Repair or replace erosion control measures in or around the swales.

• If swale side slopes exhibit slumping and/or erosion - regrading, riprap replacement and re-vegetation may be required. Complete the appropriate corrective action in a timely manner.

4.2.4 Water Treatment Effluent Pipeline and Diffuser

The water treatment effluent pipeline is an 18-inch diameter fused HDPE pipeline that carries the treated water from the processing building to the Fox River. Bolted flange connections are used at elbows and other critical connections.

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The pipeline exits the building above grade and rans from the east side of the treatment plant a short distance before dropping below grade elevation and ranning through a concrete box culvert just to the east of the building. It then bends to the southeast and continues underground toward the south property line. The pipeline rans parallel to the property line the remainder of the distance to the Fox River. At the shore of the river, the pipeline again bends to the southeast toward the Canadian National Railway bridge where it connects to the diffuser pipe in the Fox River just north of the bridge piers approximately one-third of the way across the river.

The diffiiser pipeline is constmcted of HDPE and connected to the effluent pipeline with a bohed mechanical flange.

On a weekly basis, from April to November, at a minimum:

• Inspect the short upland length of the pipeline where it is above grade

• Observe the visible sections of the pipeline during operation

• Observe for vegetation overgrowth along the aboveground upland pipeline ran

• Observe for interferences or abrasion against stractures

• Inspect the flanged connections, where visible

• Note whether the outflow from the difftiser pipe may have possible blockage based on higher than normal backpressure or reduced flow

Corrective Action

As required:

• Rotate the pipe to equalize intemal wear

• Tighten flange connections

• Prevent abrasion against sharp or hard stractures

• Control vegetation growth in pipe trench

Pipeline inspections will be documented on the Effluent Pipeline and Diffiiser Inspection Log presented in Appendix C-5.

4.2.5 SUt Fence

Silt fences will be used periodically to control ranoff from stock piles or green space areas under repair. Silt fences shall be observed, maintained and documented in accordance with Wisconsin Administrative Code NR 151.12. Inspection forms for erosion control features are included in the facility's SWPPP.

4.2.6 Sheet PUe WaU

The sheet pile bulkhead wall shall be periodically observed:

• Bulging of the steel wall

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e In the spring of each year for ice damage or excessive pitting or corrosion

• At the end of each constmction season for excessive vertical or unacceptable differential settlement

• Following severe impacts from marine vessels

• Following significant high water events

• Sink holes in fill behind wall

• Tihing from vertical

Corrective Action

As needed:

• Fill sink holes

• Observe instramentation readouts in regions of bulges or tilting or other damage. Install new monitoring instramentation if necessary to observe movement or assess damage

A more detailed plan for monitoring of the bulkhead wall and water to be removed from the wick drain system is presented in Appendix D. Movements of the bulkhead wall beyond acceptable limits, as described in Appendix D, or any unusual events (e.g., damage, release of backfill materials, etc.) must be brought to the attention of a competent stractural engineer for fiirther evaluation, preferably the geotechnical consultant who performed the stability analysis during the original design (AECOM, formerly STS Consultants). The specific long term monitoring plan includes the following.

After constmction and backfilling is complete strain gauge data will be collected and evaluated until the differential strain is reduced to zero for three consecutive weeks at which time monitoring may be discontinued; in-place inclinometer data will be collected and evaluated until movement has slowed to minimum levels or stopped at which time the monitoring may be discontinued; data from the piezometers will be collected until the pore pressures have dissipated to hydrostatic levels, at which time monitoring may be discontinued; inclinometer data will be collected until movement is found to have ceased for three consecutive months, at which time monitoring may be discontinued; settlement plate survey data will be collected until the ratio of the horizontal movement (as measured by the inclinometers installed adjacent to the wall) to the vertical settlement (measured by the settlement plates) is less than 0.2 and all filling is complete. The instramentation should be protected and preserved. It could be used in the fiiture if site conditions or expected uses change. However, it does not need to be monitored once constraction is complete and the minimum level have been reached unless use of the site is different than designed (i.e. The design five loading conditions for the bulkhead wall are 200 psf uniformly distributed live load from the face of the bulkhead wall and a 300 psf stockpile load 100 feet from the face of the bulkhead.)

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4.2.7 River ShoreUne

Periodically observe the shoreline and river bank:

• For erosion gullies or rills from April to December

• For shoreline erosion from prop wash and wave action

• For excessive vegetative growth

• Riprap placement, where applicable

• For wildlife burrows

• For trash or debris, fish kills or spawning impacts at the boat slip/docking area

Corrective Action As required:

• Repair shoreline erosion

• Fill wildlife burrows

• Replace/restore rip-rap

• Repair vegetation

• Remove accumulated trash or debris or fish kills that may impact spawning activities

These inspection and corrective action activities will be documented on the River Shoreline and Bulkhead Wall Inspection Log in Appendix C-6.

4.3 Indoor Areas

The following equipment and infrastracture outlined in the following sections shall be observed, inspected, and documented by Tetra Tech or its subcontractors. These activities will be documented on the Inspection Log in Appendix E.

4.3.1 Fire Protection and Fire Alarm Systems

4.3.1. a Fire Protection system.

Fire protection for the Fox River material processing facility building is provided by a wet sprinkler system. The entire processing facility building is divided in to four main areas and sprinkler protection system is divided into six zones as follows:

1. Building A (SDDP) Sprinkler zones # 3 and #4

2. Building B (Filter Cake Storage Area) Sprinkler zones # 1 and #2

3. Building C (WTP) Sprinkler zone # 6 4. Building D (Administrative Area) Sprinkler zone # 5.

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Sprinkler system water is supplied from the city firewater line located 600 feet north of the comer of Liberty and State Streets, west of the processing facility building. Six water flow valves control the six different sprinkler zones. Each water flow valve has a tamper switch and flow switch which is tied into the fire alarm system control panel.

Each sprinkler head has a built in heat detector that activates the sprinkler in case of fire.

Sprinkler system activation in either Building A or Building C zone will shut down, respectively,

electrical power to the process equipment located there.

4.3.1.b Fire Alarm System

The fire alarm system consists of the following main components:

a. Smoke detectors b. Heat detectors c. Duct detectors

d. Manual pull stations e. Hom/strobe lights f Fire alarm control panel g. Remote annunciator

Detector pull stations and hom/strobe lights are located throughout the buildings. The main fne alarm control panel is located in WTP control room in Building C. In the event of fire, the Green Bay fire department will be notified via a dedicated telephone line. In addition, if a fire occurs when the facility is unattended, the facility operator(s) or other key project staff in the Green Bay area will be notified via the auto-dialer located in WTP control room. The auto-dialer will also have the capability to notify local project staff if there is a loss of power through any of the three transformers that provide power into the building, or if the temperature in the building has become unusually low in the winter when it may be unoccupied.

A remote annunciator panel is located at main entrance of administrative area # 101a.

The fire alarm system has following four zones.

1. Section A &A1 (SDDP)

2. Section B & Bl (Filter Cake Storage Area) 3. Section C (WTP) 4. Section D (Administrative Area)

The fire alarm panel will monitor the sprinkler system water flow valve and temperature switch

and provide an alarm and indication in the event the sprinkler system is activated.

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Inspections of the fire alarm system are to be performed on a monthly and an annual frequency, as follows.

On a monthly basis, at a minimum:

• Check for proper water pressure in the fire protection lines

• Check for leaks from the piping system

• Observe all Fire Exit signs for proper lighting

• Test fire alarm system as required

On an annual basis, at a minimum:

• Inspect sprinkler heads for damage

• Test emergency lighting for proper charging and fiinction

• Inspect and recharge, as necessary, all fire extinguishers at the facility

• Ensure that the armual City of Green Bay fire department inspection is performed

These observations will be documented on the monthly and annual Fire Protection and Fire Alarm Systems Inspection Log in Appendix E-1.

An operations and maintenance plan for the fire protection and alarm system is presented in Appendix F. Inspections and corrective action related to the above-listed items will be documented on the Miscellaneous Equipment Inspection Logs. If significant problems are suspected, a subcontractor specializing in the repair of fire protection and alarm systems will be contracted to perform corrective action.

4.3.2 Overhead Bridge Cranes (3)

Follow the manufactures recommendations and safety protocol at all times. No one shall operate the overhead cranes without proper safe operation training. See the manufacturer's Operations and Maintenance Manual found in Appendix G. In addition to the guidelines provided by the manufacturer:

On a daily basis (when the crane is used), at a minimum:

Check the hoist cables for signs of wear

Check the hook safety clip for proper operation

Check the control cable for wear

Observe the travel of the crane for smooth operation/alignment

Observe the cable winding on the winch reel

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» Observe the crane track and travel range for obstmctions

These observations will be documented on the Overhead Cranes Daily Inspection Log in Appendix E-2a by the crane operator prior to operating the crane(s) on days when the crane(s) is used. Operation of each overhead crane is task specific and they may not be operated everyday..

On an annual basis, at a minimum, the following inspections will be performed by a State licensed and certified crane manufacturer's representative:

• Are the bumpers in good condition

• Are all the bolted connections and welds free of damage and in good condition?

• Are the power feed cables free of damage and in good condition?

• Is the load hook free of damage?

• Are the crane and trolley wheels in good condition and free of damage?

• Are the electrical controls and wire connections free of damage and in good condition?

Confirmation that these inspections have been performed will be documented on the Overhead Cranes Annual Inspection Log in Appendix E-2b.

Please note that additional daily and aimual inspection requirements and forms for the overhead

cranes are included in the Health & Safety Plan for the project.

Corrective Action

If at anytime a crane is not in proper working order, remove the crane from service immediately following the established lockout/tagout program and inform the Safety Manager and Operations Manager. DO NOT operate the crane until it has been properly repaired, inspected and re­certified for use by the Operations Manager.

4.3.3 Petroleum, Oil and Lubricant Storage Area

Follow the guidelines and regulations in OSHA 1910.106 for proper handhng, use and storage of small quantities of petroleum products in the sediment treatment building or the marine staging area. In addition, observe the following:

• Storage cabinet for damage

• Keep area clean and free of rags

• Clean up all spills immediately

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• Use absorbent materials on spills to prevent slips and falls

» Dispose of absorbent materials and rags properly

• Dispose of grease containers properly

• Store grease guns, funnels, etc. properly

A 500 to 1,000 gallon mobile diesel tank will be normally situated just southeast of the debris management area. This tank will be used for re-fiieling Tetra Tech front end loaders, man lifts and any other site based equipment needed for processing facility operations. The diesel tank will be double wall constraction, providing its own secondary containment. Mobility of the tank will allow it to be brought nearby to the front end loaders for re-fiieling, eliminating the need to take them away from their normal work locations (i.e., typically either the filter cake building or the sand slab).

An addifional stationery, double wall constraction 500 to 1,000 gallon tank for storing diesel fiiel for marine operations will be located west of the storm water pond. A third, similar diesel fiiel tank will be positioned closer to the shoreline, from which a re-fiiel barge will draw diesel fuel to transfer it to the dredges and pump stations on the river.

4.3.4 Truck Wash Area

The track wash area is located on the west side of the waste (i.e., filter cake) staging building. The track wash consists of a drive through wheel wash rack, a collection tank, and a pump system and associated controls. Follow the Interclean Operations and Maintenance Manual found in Appendix H for maintenance of the pumps, piping, sprayers and control system. In addition, observe the following items.

On a weekly basis, at a minimum;

• Observe the collection tank for proper water level

• Observe the collection tank for sediment levels

• Observe the automatic wash for proper operation as tracks pass through

• Inspect spray nozzles for blockage

• Inspect the grating over the collection and pump pits for wear or damage

These observations will be documented on the weekly Track Wash Inspection Log in Appendix E-3.

Corrective Actions As needed:

• Remove excess water to proper level by pumping to the SDDP Overflow Tank

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• Add water to proper operating level from city water connection

• Drain and remove excess sediment from collection tank. Water from tank is to be processed through the SDDP

• Replace or clean plugged nozzles

• Repair or replace damaged or worn safety grating

4.3.5 Truck Scales Follow the Fairbanks Operations and Maintenance manual for the track scales that are located in the waste staging and loading area. The Fairbanks manual is attached in Appendix I. In addition to the manufacturer's program, observe the following.

On a weekly basis, at a minimum:

• hispect the gap around the scale platform for obstmctions

• Observe the scale platform for fugitive waste

• Clean up spilled waste immediately

These observations will be documented on the weekly Track Scales Inspection Log in Appendix E-4a. Please note that the track scale pits are considered to be a confined space and the applicable health and safety procedures must be followed.

On a monthly basis, at a minimum:

• Observe the scale pit for water or waste buildup

• Observe the load cells for wear or leakage

On an amiual basis, at a minimum:

• Calibrate and certify the scales

• Clean/pump out scale pits

These observations will be documented on the monthly and annual Track Scales Inspection Log in Appendix E-4b.

4.3.6 Conveyors Several conveyors are used to convey oversize scalpings, coarse and fine sand, and filter cake waste from the SDDP. These conveyors will be inspected weekly for evidence of belt wear, overtopping of material, and discharge performance to verify the equipment is operating properly. These inspections will be documented on the Conveyors Inspection Log in Appendix E-5. The Operations and Maintenance Manual(s) for the facility's conveyors are presented in Appendix J.

On a weekly basis, observe the following at a minimum:

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o The radial stacker and conveyor system for proper operation

• Check for evidence of excess belt wear.

• Check interlocks for proper operation.

• Verify proper operation of start/stop controls.

• Confirm lubrication is in accordance with manufacturer's recommendations.

• Check for material build-up undemeath and/or at the base of the conveyor.

• Check for movement or shifting of belts.

• Confirm if pile sensors are working properly.

Weeidy inspections will be documented on the Conveyors Inspection Log presented in Appendix E-5.

4.3.7 Waste (Filter Cake) Staging Area

The waste staging area is inside the west third of the operations building. The waste is transported from the filter presses via a conveyor/stacker system inside the building.

Rubber tire front end loaders are used to stockpile and load the haul tracks inside the building. Smaller skid steer loaders clean up waste from the loading operations and pick up waste from along the push walls and in tighter areas in the storage building.

Haul tracks enter from the west comer along the north side of the building and are loaded on one of two scales. Following loading, fugifive waste is cleaned off the track sides and the loads are covered. The track then proceeds to the wheel wash and exits the building on the south end.

The intemal support columns inside this building have highly visible concrete filled steel protectors constmcted on the lower 7 feet to resist damage to the building from accidental contact from the loading equipment.

The heavy equipment maintenance may be performed in a designated area inside the building.

Waste transport or storage will not be permitted in this area.

On a daily basis, the push wall will be inspected for overtopping of the waste.

On a monthly basis, observe the following at a minimum:

• The floor area for chipping or broken concrete

• The push wall for excessive wear or damage

• The building column protectors for damage following impacts

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Monthly inspections will be documented on the Waste (Filter Cake) Staging Area Inspection Log

presented in Appendix E-6.

4.4 Operations Change-Over from TSCA to non-TSCA Wastes

This is a critical operation that must be completed properly to prevent TSCA wastes from being handled and disposed of improperly. Non-TSCA and TSCA waste will be dredged and processed separately, and it will be necessary to prepare the facility when switching from one type of waste to the other. The following must be completed at a minimum to ensure proper waste handling associated with the change-over from one type of waste to the other:

• Remove all waste from conveyors and radial stackers.

• Carefially wash down the front end loaders and other equipment used to manage filter cake or sand, using temporary shields if necessary to control splashing, and ensure that the washdown water is collected in either the track wash pit or the sand slab sump from where this water will be transferred to the Overflow Tank;

• Remove all waste from the push wall area. Use shovels, brooms, or putty knives as necessary, to ensure removal of all TSCA waste.

• Remove all waste from around building columns and from the general floor area. Use push brooms and flat shovels as necessary.

• Clean the track scales area of all waste.

• Wash down and pump out the track scale pits and purge the drain lines.

• Wash down the wheel wash rack and drains.

» Drain the track wash collection tank.

o Remove all sediments from the track wash collection tank.

• Run river water through the dredge pipelines to flush the pipes and SDDP of TSCA residue, when changing over from TSCA to non-TSCA sediment. This process is described in detail in the SDDP O&M Plan.

The switchover from TSCA to non-TSCA will involve a more rigorous cleanup process than the change-over from non-TSCA to TSCA. Waste streams will continue to be disposed of in accordance with their TSCA or non-TSCA designation during the change-over process and will be disposed of at the appropriate offsite disposal facility. An inspection log used to document the change-over from TSCA to non-TSCA material is presented in Appendix K as the Operations Change Over log.

4.5 Facihty Seasonal Shutdown

At the cessation of operations of the processing plant each season, the facility should be thoroughly inspected. Maintenance, repair or replacement of significant items will be catalogued.

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A facility shutdown checklist is provided in Appendix L. The following activities will be performed as part of the annual operations shutdown:

Inspect doorways and overhead doors for proper operation and clearance.

Inspect all exit signs for standard and back up lighting.

Clean the track scale pits.

Inspect floor slab in filter cake storage building for cracks.

Inspect the track wash floor area for cracking and piping for leaks.

Drain the track wash collection tank and remove and dispose of any accumulated sediment.

Inspect the trench drain grates for wear

Install plumbers ball in trench drain outlets

Inspect sand trap to ensure it is clean and free from cracking or damage

Inspect storm sewer manholes for debris and sediment buildup

Remove sand trap pumps.

Inspect the building shell for wind damage

Inspect the roof gutters and downspouts for blockage or damage.

Verify that the materials staging area has been cleared and leveled.

Confirm whether the containment berms for the dredging debris area are in good condition and vegetated.

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5.0 O&M PLAN REVISIONS, UPDATES, REPAIR, AND INSPECTION LOGS

Revisions and updates to this plan will be maintained in this manual and a master copy shall be kept on site and available for ready access. The project Quality Control Manager is responsible for maintaining the plan revisions, updates and inspection logs.

Repairs to key equipment and infrastracture will be recorded on the Equipment Modification and Repair Log, presented in Appendix M. The completed Log will be submitted to the project Quality Control Manager with a copy to the Project Manager.

Each time an inspection is performed, the appropriate checklist/log is filled out. The completed log will be submitted to the Quality Control Manager and the Project Manager and reviewed for action items. Action items are reported to and acted upon by the Project Manager. When the action item is completed, the Quality Control Manager will then sign off on the appropriate inspecfion log the item has been completed. The inspection logs will be maintained in the project files for reference.

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6.0 REFERENCES Wisconsin Administrative Code NR 151 and 216 Wisconsin State Statute Chapter 283 OSHA Regulation 1910.106

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0 0 / 2 5 / 0 9 >00eo TOPO ) WET H t t f OF PBOPEFTY

Dealflned:

Qrawi: RLD 12/03/2006

Chackod: CPH t2 /05 /200B

Approved: UJU 12/00/2009

PROJECT NUMBER

200801978 SiffET REFERENCE fOJUBER

T-01 SHEET 1 OF 3

RIM EL. 590.70' NE. PIPE: 24" CONC,

INV. 588.0' SE. PIPE: 10" CONC.

INV. 588.6' SW. PIPE: 2 4 ' CONC,

INV. 588 .1 ' N. PIPE: 10" PVC.

INV. 586.7"

PRIVATE CLAIM 10

:UNACCESSIBLE

PRIVATE CliMM 11 RIM EL 591.14'-

NE. PIPE: 14", INV. 582.9'

RIM EL 591.32' NE. PIPE: 18" CONC,

INV. 581.3' SE. PIPE: 10" CONC,

INV. 581.9" SW. PIPE: 18" CONC,

INV. 581.3'

BENCHMARK:^ TOP NUT OF HYDRANT \ |

ELEV. = 596.05' ^

RIM EL. 593.08'-NE. PIPE: 18" CONC,

INV. 587.4' SE. PIPE: 12" PVC, INV.

587.9' SW. PIPE: 18" CONC,

INV. 587.6' NW. PIPE: 10" CONC,

INV. S88.0'

RIM EL 592.78'-DEPTH TO BOTTOM 4.1"

SE. PIPE: 10" PVC, INV. 588.9"

RIM EL 593.28" NE. PIPE: 18" CONC.

INV. 582.4" SW. PIPE: 18" CONC.

INV. 582.4"

\

RIM EL 599.67" NE. PIPE: 18" CONC.

INV. 883.4" SW. PIPE: 18" CONC,

INV. 583.3"

PRIVATE CLAIM PRIVATE CLAil^

RIM EL 599.76 NE. PIPE: 18" CONC, /

INV. 589.2" SW. PIPE: 30" CONC. /

- - . |NV. 5??«" NW. PIPE: 8 ' ^ O N C ,

INV. 594.5"

SCALE IN FEET

LEGEND

5 ' CONTOUR

1" CONTOUR

SANITARY SEWER LINE

STORM SEWER LINE

WATER LINE

OVERHEAD ELECTRIC LINE

GUARDRAIL

FENCE UNE

APPROX. PROPERTY LINE

CULVERT LINE

TREE LINE

STORM MANHOLE

SANITARY MANHOLE

GUARD POST/BOLLARD

CATCH BASIN

INLET

ELECTRICAL PEDESTAL

AIR MONITOR

GATE POWER BOX

GAS VALVE

FIRE HYDRANT

WATER VALVE

LIGHT POLE

POWER POLE

BENCH MARK

SIGN POST

CONTROL POINT

END SECTION

ASPHALT PAVEMENT

CONCRETE PAVEMENT

RECYCLED ASPHALT

GRAVEL AREA

SITE SURVEYED BY AECOM ON 12-3-2008. 7-15-2009. AND 7-16-2009 AND WAS SNOW COVERED AT THE TIME OF SURVEY ON 12.>20oe.

HORIZONTAL COORDINATES ARE REFERENCED TO V.1SC0NSIN STATE PLANE COORDINATE SYSTEM. NAD 83(97). CENTRAL ZONE.

ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 19B8. (NAVDB8)

AECOM

1035 Kapler Drive Green Bfly. V ' f lSWl l

Copyright 2000 AECOU. h t c

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Dftsignod:

Dfawn: RLD 8 /24 /2009

Chocked: CPH 8 /24 /2009

Approved: u i u 8 /24 /2009

PROJECT NUUBO)

200801978

SHCn REFERENCE NUUBCR

T-02 SHEET 2 OF 3

R-18B 20 U^ OF 12" DIA. RCP STORM STUB O S •= 0.0300 ft/ft 12" INV=UNACCESSIBLE ^

R-18 S . 8" DIA STORM MH ^ RIM=592.54 " 12" NE lNV-588.64 30" NW INV"UNACCESSIBLE 18" SE INV=UNACCESSIBLE 3 6 ' SW INV-UNACCESSIBLE

ll 100-yr. FLOODPLAIN FROM FEMA PRELIMINARY FLOOD MAP (JUNE 2007)

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5 B 9 '

R - 1 8 ^ 20 L f OF 18" DIA. RCP/STORM STUB

0.0052 f t / f t INV^UNACCESSIBLE

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18"

R - ' 1 9

6" DIA I N i m MH RIM:>592.2« 36" NE INy-585.75 12" NW IN ^=UNACC£SSIBLE 36" SW IN ^=UNACCESSIBLE SAND STORAGE

(UNDER CONSTRUCTION)

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R-10 8" DIA. INLET MH RIM'^592.11 r4"x38" SW INV-584.86 ( 6 F F S E T 0.5" TO WE 16" NE I N V = U N A C C E S S I B L | (OFFSET 0.5" TO

SE INV;pUtlACCESSIBI

[-10A DIA. IN

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BOX CULVERT FOR PIPES

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FOX RIVER

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-R -8 5' DIA. MH RIM«591.98 24" NW INV=585.68 24" NE INV"585.71

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O ^ ""i l l V l / ( ' „ /•*£>" NW INV=581.32

• ' • " " ' • " ' CANADIAN NATIONAL RAILWAY

38"x60" H.E. END SECTION 1NV=580.19

-STORM WATER OUTFALL

I

SCALE IN FEET

^^' *,*S J3^ LEGEND

- 5 9 4 -

I o I e>

BM e

ESS]

f mm

5" CONTOUR

1" CONTOUR

SANITARY SEWER LINE

STORM SEWER LINE

WATER LINE

OVERHEAD ELECTRIC LINE

GUARDRAIL

FENCE LINE

APPROX. PROPERTY LINE

CULVERT LINE

TREE UNE

STORM MANHOLE

SANITARY MANHOLE

GUARD POST/BOLLARD

CATCH BASIN

INLET

ELECTRICAL PEDESTAL

AIR MONITOR

GATE POWER BOX

GAS VALVE

FIRE HYDRANT

WATER VALVE

LIGHT POLE

POWER POLE

BENCH MARK

SIGN POST

CONTROL POINT

END SECTION

ASPHALT PAVEMENT

CONCRETE PAVEMENT

RECYCLED ASPHALT

GRAVEL AREA

.x •a WOODED AREA^/ v

_-- / ^ A

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V , -̂̂ ,*,i;

^ MOTES:

1) SITE SURVEYED BY AECOM ON 12-3-2008. 7-15-2009. AND 7.16-2009 AND WAS SNOW COVERED AT THE TIME OF SURVEY ON 12-3-2006

2) HORIZONTAL COORDINATES ARE REFERENCED TO WISCONSIN STATB PLANE COORDINATE SYSTEM. NAD 63 (97). CENTRAL ZONE.

3) ELEVATIONS ARE REFERENCED TO THE NORTVt AMERICAN VERTICAL DATUM 1968, (NAVDSe)

AECOM

l035K9pli!r Drive Green Qoy, V/l 54311

920.^681573

w.aacom com

Copyright 2009 AECOU, Inc

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RLD 6/24/2009 Chached: CPH 6 /24 /2009

Appreved'. y j U 8 /24 /2009

PROJECT NUWBER

200801978 SXET REFERENCE NUUBCR

T-03 SHEH 3 OF 3

APPENDIX A

Green Bay Staging and Material Processing Facility Annual Facility Start-Up Inspection Log

Item

Inspect doorways for proper operation and clearance

Inspect all exit signs for standard and back up lighting

Inspect and test site-wide interior and exterior emergency lighting

Inspect and test fire alarm system

Inspect & test truck scales and perform calibration

Inspect & test the overhead cranes

Inspect floor slab in filter cake storage building^for cracks

Inspect the truck wash floor area for cracking and piping for leaks

Fill the truck wash tank and test operation of wheel wash Clear the sand pad of excess snow/ and ice. Inspect the trench drain grates for wear and the trench drain outlets for obstructions.

Check all interior drain systems for obstructions and pump operation

Lubricate and test mechanical operations equipment

Inspect sand trap to ensure it is clean and free of ice and snow

Install sand trap pump and test the operation of the float and pump

Inspect the building shell for ice or snow damage

Inspect the roof gutters and downspouts for blockage or damage

Inspect the HVAC units for obstructions or damage from ice/snow Check whether the materials staging area is free of ponded water, rutting Check whether the containment berms for the dredging debris area are in good condition and vegetated

Inspect marine staging area

Inspected By Date Action Req'd Action Completed

RevO, 9/14/09

APPENDIX B-1

DATE ANNUAL INSPECTION LOG

BUILDING A (SEDIMENT DESANDING AND DEWATERING PLANT)

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Are there any visible leaks in the roof from inside?

Is there any damage to the HVAC indoor ductwork (i.e. tears/rips visible to the naked eye, dents or frosting, separation at joints?)? Are all of the lights working properly (i.e.turn on and off with the switch)?

Is the emergency lighting working (i.e. turns on when sensored to)?

Have inspections been performed on all fire extinguishers?

Do all electrical outlets work?

Is there any damage to the electrical outlets (i.e. corrosion, broken faceplates)? Is there any damage to the walls underneath the filter presses (i.e. cracks larger than 0.5 inches In any direction)? Is there any damage to columns (i.e. dented or cracked more than 3 inches in any direction, corrosion or decay on yellow metal sleeve)? Is there any damage to the flooring (i.e. cracks larger than 0.5 inches in width)?

Are all the interior drains free of debris and/or obstructions?

Is there any damage to Interior drains (i.e. damaged grating, sections missing)?

Are the annual inspections up to date on the machinery?

Does the standard and back up lighting work for the exit signs?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX B-2

DATE ANNUAL INSPECTION LOG

BUILDING B (FILTER CAKE STORAGE)

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Are there any visible leaks in the roof from inside?

Are all of the lights working properly (i.e. turn on and off with the switch)?

Is the emergency lighting working (i.e. turns on when sensored to)?

Is there any damage to the HVAC indoor ductwork (i.e. tears/rips visible to the naked eye, dents or frosting, separation at joints)?

Is there dust build-up on the HVAC vents and are the intake grilles free of debris and obstructions?

Have inspections been performed on all fire extinguishers?

Is there any damage to columns/bollards (i.e. dented or cracked more than 3 inches in any direction, corrosion or decay on yellow metal sleeve)?

Do all electrical outlets work?

Is there any damage to the electrical outlets (i.e. corroded or broken faceplates)? Is there any damage to the flooring (i.e. cracks larger than 0.5 inches in width)? Is the truck wash free of debris (i.e. no build-up on the sprayers, grates are free of debris or obstructions)?

Is there any damage in the truck wash area (i.e. piping, walls)?

Have the scale pits been cleaned and pumped out?

Is there proper water pressure in the fire protection lines?

Are the accessible concrete surfaces on the push walls free of damage (i.e., cracks in concrete larger than 0.5 inches in width, spalling or divots)?)?

Does the standard and back up lighting work for the exit signs?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX B-3 DATE

ANNUAL INSPECTION LOG

BUILDING C (WATER TREATMENT PLANT)

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Are there any visible leaks in the roof from inside?

Are all of the lights working properly (I.e. turn on and off with the switch)?

Is the emergency lighting working (i.e. turns on when sensored to)?

Is there any damage to the HVAC indoor ductwork (i.e. tears/rips visible to the naked eye, dents or frosting, separation at joints)?

Is there dust build-up on the HVAC vents and are the intake grilles free of debris and obstructions?

Have inspections been performed on all fire extinguishers?

Is there any damage to columns (i.e., corrosion, shear and/or torque stress present)?

Do all electrical outlets work?

Is there any damage to the electrical outlets (i.e. corroded or broken faceplates)? Are all the interior drains and/or sumps free of debris and/or obstructions? Is there any damage to interior drains and/or sumps (i.e. damaged grating, sections missing)? Is there any damage to the flooring (i.e. cracks larger than 0.5 inches in width)?

Does the primary and back up lighting work for the exit signs?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX B-4

DATE ANNUAL INSPECTION LOG

BUILDING D (ADMINISTRATIVE OFFICE)

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Are there any visible leaks in the roof from inside?

Are all of the lights working properly (i.e. turn on and off with the switch)?

Is the emergency lighting working (i.e. turns on when sensored to)?

Is there any damage to the HVAC indoor ductwork (i.e. tears/rips visible to the naked eye, dents or frosting, separation at joints)?

Is there dust build-up on the HVAC vents and are the intake grilles free of debris and obstructions?

Have inspections been performed on all fire extinguishers?

Do all the windows function properly (i.e. open and close easily, no damage to tracks, lock and unlock properly)?

Do all electrical outlets work?

Is there any damage to the electrical outlets (i.e. corroded or broken faceplates)? Is there any damage to the flooring (i.e. cracks larger than 1/8 inch in any direction, carpet pulling up or pieces missing)?

Does the primary and back up lighting work for the exit signs?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX B-5

DATE ANNUAL INSPECTION LOG Page of

OVERHEAD DOORS REPORT NUMBER

NO. ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION,

& REQUIRED M&TE, AS APPLICABLE

INSPECTION RESULTS

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

Is there any damage to the overhead door (i.e. dents, gaps between slats)? Do the overhead doors function properly (i.e. lift up and down with ease, stop at limits)? Do the doors seal well against the building frame and at the top and bottom joints when closed?

10

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

DATE APPENDIX B-6

MONTHLY INSPECTION LOG

EXTERIOR OF FACILITY

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Are the roof drains and associated downspouts in good condition (i.e. no leaks, no dents, no drooping) and free of debris or obstructions?

-Is there any sign of damage to the fence line along the north or west property lines?

Are there signs of vegetative growth near or, vandalism or breakage at the fence?

Are the powered fence gates working properly?

Do the motors and fan bearings for the HVAC system have proper lubrication? Lubricate every four months or less.

Are all the windows in good condition (i.e. no cracks, no warping)?

Are all the door locks working and in good condition (i.e. are they unlocking and locking with the correct corresponding key, no separation from the door)? Is there any damage to the HVAC structures (i.e. dents, signs of collisions)? Is there any damage to the dredge pipelines on the eastern portion of the site (i.e. tears through the tubing, leaking at connection joints)? Are the containment berms for the dredging debris area in good condition and vegetated? Are the power gates function properly (i.e. open and close smoothly on command)?

Is the HVAC control system working properly?

Has the sand pad been cleared of excess snow and Ice? Is there any sign of wear (i.e. broken or missing pieces) to the trench drain grates in the sand pad area? Are the trench drain outlets clear of obstructions?

Is the sand trap clean and free of ice and snow? Has the accumulated sediment in the detention pond and catch basin been measured? Are the belts and other drive trains in the HVAC system in good condition? Is the material staging area free of ponded water and rutting?

Rev 0. 9/

Page of

REPORT NUMBER

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

APPENDIX C-1

DATE WEEKLY INSPECTION LOG

SAND STAGING AND STORAGE AREAS

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Are the accessible concrete surfaces on the push walls free of damage (i.e., cracks in concrete larger than 0.5 inches in width, spalling or divots)? Is there any damage to the slab (i.e. cracks larger than 1/4 an inch in width, spalling or divots)?

Are the sand slab trench drains clear of debris or obstructions?

Is there any damage to the trench drain grates (i.e. cracking, pieces missing)?

Is the sand trap sump clear of debris or obstructions?

Is there any damage to the sand trap sump concrete surfaces (i.e., cracking, pieces missing, ice or snow damage, spalling, divots)?

Is the sand pad draining properly (i.e., free/clear of ponding water)?

Is the area between the sand slab push wall and building free of accumulated sand? Is the sediment build-up in the sand trap sump exceeding one foot in depth?

Are the sand trap pumps operating properly?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX C-2

DATE MONTHLY INSPECTION LOG

RIVER CAPPING MATERIAL STAGING AREA

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Is the area free of vehicle ruts?

Is fugitive dust being controlled?

Is runoff from stockpiles being controlled?

Are the access roads in good condition (no potholes?

Are traffic controls in place and fuctioning?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX C-3

DATE MONTHLY AND ANNUAL INSPECTION LOG

POND AND OUTFALL AREAS

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

1

2

3

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Has the accumulated sediment in the detention basin been measured?

Is the outlet in the sediment basin free of accumulated debris and allowing water to flow freely through them? Is there any damage or erosion to the sides of the sediment basin (soil not staying in place or tightly packed?)?

Is the sediment basin free of collected debris or sediment that could prevent proper functioning?

Are the exposed culvert barrels free of accumulated debris or sediment?

Are the orifice and weir on the interior of the outlet structure free of debris or sediment?

ANNUAL INSPECTION ITEM:

Has the 5-year sediment removal of accumulated sediment taken place? (annual inspection item)

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX C-4

DATE MONTHLY INSPECTION LOG

CATCH BASINS AND SWALES

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

A l IKIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Are the catch basins free of debris and/or sediment that could prevent them from functioning properly?

Are any of the catch basins overfiowing?

Are any of the catch basins discharging or receiving water in a manner they were not intended to?

Is there evidence of damage (i.e. pieces/parts missing, cracks larger than 0.5 inches in width) to the catch basins?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Tifle Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX C-5

DATE WEEKLY INSPECTION LOG

EFFLUENT PIPELINE AND DIFFUSER

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Is there any damage to the length of the pipeline (i.e. breaches in material, bends or creases preventing proper flow)?

Is the pipeline functioning properly during operation?

Is there any sign of overgrowth or vegetation on the pipeline?

Is there any sign of interference or abrasion against the pipeline?

Are all the flange connecfions in good condition (i.e. no damage, no leaking, no pieces missing)?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX C-6

TETRATECH EC, INC. INSPECTION LOG DATE

PROJECT TITLE AND LOCATION: Fox River Project, Green Bay, Wl REPORT NUMBER

ITEMS INSPECTED: RIVER SHORELINE AND BULKHEAD WALL

NO. ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION,

& REQUIRED M&TE, AS APPLICABLE

INSPECTION RESULTS

ACCEPTABLE

(«^) Yes No

(»^) N/a

COMMENTS

Are there signs of erosion gullies or rills along the riverbank?

Are there signs of erosion from prop wash and wave action?

Is vegetation in place and free of damage?

Is rip rap in place and free of damage?

Are wildlife burrows intact and free of damage?

Are there any accumulated trash or debris or fish kills that may impact spawning activities?

Is there any visible damage to the bulkhead wall?

Are any face sheets out of alignment or not vertical?

Is any of the data acquisition equipment or instrumentation damaged or missing?

10 Are there any areas of differential settlement in the cells or near the sheeting?

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX E-1

DATE MONTHLY & ANNUAL INSPECTION LOG

FIRE PROTECTION AND FIRE ALARM SYSTEMS

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

1

2

3

4

5

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

MONTHLY INSPECTION ITEMS:

Is the Are alarm system working properly?

Is the minimum adequate water pressure in the system?

Inspect ail Fire Exit signs for proper lighting

Check for any leaks in the piping system.

Test the fire alarm system as required.

Are all of the fire exit signs lighting properly?

Has the monthly test been completed?

ANNUAL INSPECTION ITEMS:

Inspect the fire sprinkler heads for damage

Test emergency lighfing for proper charging and funcfion

Inspect and recharge, as necessary, all fire extinguishers at the facility Ensure that the annual inspection by the City of Green Bay is performed as required.

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Tifle Date

RevO, 9/14/09

APPENDIX E-2a RevO, 9/14/09

TETRATECH EC, INC. DAILY INSPECTION LOG DATE

PROJECT TITLE AND LOCATION: Fox River Project, Green Bay, Wl REPORT NUMBER

ITEMS INSPECTED: OVERHEAD CRANES

NO. ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION,

& REQUIRED M&TE, AS APPLICABLE

INSPECTION RESULTS

ACCEPTABLE

Yes No N/a

COMMENTS

Are the annual inspections up to date on the overhead crane hoist cables? Are there signs of wear or deteriorafion on the overhead crane hoist cables? Is the overhead crane hook safety clip in good condition to allow for proper funcfioning? Are there signs of wear or deteriorafion on overhead crane control cable? Does the overhead crane travel smoothly and in proper alignment when in operation? Are the any obstrucfions in the overhead crane track and travel range?

Are the overhead crane scale certificafions up to date?

Are the certificafions for operators/employees using the overhead cranes up to date? Have the overhead cranes been calibrated, are the calibrafions valid?

10 Are the travel brakes functioning properly (i.e. braking within recommended tolerances)?

11 Are the hoist brakes functioning properly

12 Are the limit switches (i.e. upper and lower limit switches, end-of-travel limit switches) functioning properly?

13 Are the wire ropes in good condifion and free of defects, kinks and broken wires?

14 Is the pendant control funcfioning properly?

15 Are all end stops protected by energy absorbing bumpers?

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Tifle

Approver (print name/ signature) Tifle

Date

Date

APPENDIX E-2b

It TETRATECH EC, INC. ANNUAL INSPECTION LOG DATE

PROJECT TITLE AND LOCATION: Fox River Project, Green Bay, Wl REPORT NUMBER

ITEMS INSPECTED: OVERHEAD CRANES

NO. ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION,

& REQUIRED M&TE, AS APPLICABLE

INSPECTION RESULTS

ACCEPTABLE

Yes (»^) No N/a

COMMENTS

Has the Annual Overhead Crane Inspection been performed on the overhead cranes in Building A by a State licensed and certified crane manufacturer's representative in accordance with the requirements of CFR 1910.179?

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX E-3

TETRATECH EC, INC. WEEKLY INSPECTION LOG DATE

PROJECT TITLE AND LOCATION: Fox River Project, Green Bay, Wl REPORT NUMBER

ITEMS INSPECTED: TRUCK WASH

NO. ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION,

& REQUIRED M&TE, AS APPLICABLE

INSPECTION RESULTS

ACCEPTABLE

Yes No (»^) N/a

COMMENTS

Is the water level in the collecfion tank at an adequate level (i.e. free from overflowing)?

Has the sediment level in the collecfion tank been measured?

Is the automafic wash functioning properly?

Are the spray nozzles free of blockages and obstrucfions?

Is the grating over the collection and pump pits free of signs of damage or wear?

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Titie Date

Approver (print name/ signature) Titie Date

RevO, 9/14/09

APPENDIX E-4a

It TETRATECH EC, INC. WEEKLY INSPECTION LOG DATE

PROJECT TITLE AND LOCATION: Fox River Project, Green Bay, Wl REPORT NUMBER

ITEMS INSPECTED: TRUCK SCALES

NO. ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION,

& REQUIRED M&TE, AS APPLICABLE

INSPECTION RESULTS

ACCEPTABLE

Yes (»^) No N/a

COMMENTS

Are the gaps around the truck scale platforms free of obstructions?

Is the scale platform free of fugitive waste?

Is there any spilled waste that has not been cleaned up?

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature)

Approver (print name/ signature)

Title

Titie

Date

Date

Rev 0,9/14/09

APPENDIX E-4b

It TETRATECH EC. INC MONTHLY AND ANNUAL INSPECTION LOG DATE

PROJECT TITLE AND LOCATION: Fox River Project, Green Bay, Wl REPORT NUMBER

ITEMS INSPECTED: TRUCK SCALES

NO. ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION,

& REQUIRED M&TE, AS APPLICABLE

INSPECTION RESULTS

ACCEPTABLE

(»^) Yes No

(*^) N/a

COMMENTS

Is the scale pit free of water and/or waste buildup? (monthly)

s there any sign of wear or leakage to the load cells for the truck scales? (monthtiy)

ANNUAL INSPECTION ITEMS:

Calibrate and certify the truck scales (annual)

Clean/pump out the truck scale ppits (annual)

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature)

Approver (print name/ signature)

Tifle Date

Title Date

RevO, 9/14/09

APPENDIX E-5

DATE WEEKLY INSPECTION LOG

CONVEYORS

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Do the radial stackers and other conveyors operate properly?

Is there any evidence of excess belt wear?

Are the interlocks functioning properly?

Do the start/stop controls work properiy?

Is the lubrication up to date as per the manufacturer's recommendations?

Are the scrapers functioning properiy?

Will the conveyors travel in AUTO mode?

Are the pile sensors operating properiy?

Is there excess material build-up underneath or at the base of the conveyor?

Have belts shifted or moved?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Titie Date

RevO, 9/14/09

APPENDIX E-6

DATE MONTHLY INSPECTION LOG Page of

WASTE (FILTER CAKE) STAGING AREA REPORT NUMBER

NO. ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION,

& REQUIRED M&TE, AS APPLICABLE

INSPECTION RESULTS

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

Does the florr have excessive chipping or broken concrete?

Is there excess wear or damage to the push wall?

Have the building column protectors been damaged from impacts?

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Titie Date

RevO, 9/14/09

APPENDIX K

DATE INSPECTION LOG

OPERATIONS CHANGE OVER

Page of

REPORT NUMBER

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Is all waste removed from the conveyors and radial stackers in Building B? Have the front end loaders and any other equipoment used to manage the filter cake and sand been washed down?

Is all waste removed from the push wall in Building B?

Is all waste removed from around the building columns and the staging area floor?

Is all waste from the tmck scales?

Are the truck scale pits washed and pumped out and the drain lines purged?

Are the wheel wash rack and drains clean?

Is the tnjck wash collection tank drained?

Check that all sediments are removed from the tmck wash collection tank. Have the dredge p[ipelines been flushed clean in accordance with the SDDP O&M Plan?

INSPECTION RESULTS |

ACCEPTABLE

(Y) Yes

(N) No

(N/A) N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/ signature) Title Date

Approver (print name/ signature) Title Date

RevO, 9/14/09

APPENDIX L

[ it TETRATECH EC. INC A N N U A L INSPECTION L O G

PROJECT TITLE AND LOCATION: Fox River Project, Green Bay, Wl

DATE

REPORT NUMBER

ITEMS INSPECTED: ANNUAL FACILITY SHUTDOWN

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

ATTRIBUTES TO BE INSPECTED, METHOD OF INSPECTION, & REQUIRED M&TE, AS APPLICABLE

Are all doorways and overhead doors clear of obstructions and functioning properly?

Are all exit signs lighting properiy?

Is the backup lighting for exit signs lighting properiy?

Have the truck scale pits been cleaned?

Are there signs of damage (i.e. cracks larger than 1/2 inch in any direction) in the slab of the filter cake laydown area?

Is the truck wash floor area free of cracking?

Are the pipes in the truck wash area free of leakage?

Has the truck wash collection tank been drained?

Has accumulated sediment in the truck wash collection tank been disposed of? Are the signs of wearing (i.e. broken or pieces missing) on the trench drain grates?

Have plumbers balls been installed in the trench drain outlets?

Is the sand trap clean and free from cracking or damage?

Are the storm sewer manholes free of debris and sediment buildup?

Have the sand trap pumps been removed?

Are there signs of wind damage to the building shell?

Are there signs of blockage or damage in the roof gutters or downspouts?

Has the materials staging area been cleared and leveled?

Are the containment berms in the dredging debris area in good condition and vegetated?

1 INSPECTION RESULTS |

ACCEPTABLE

Yes No N/a

COMMENTS

LOCATION AND DESCRIPTION OF DEFICIENCIES 1

DEFICIENCIES CORRECTED THIS DATE

Inspector (print name/signature) Title Date

1 Approver (print name/ signature) Title Date |

RevO, 9/14/09

APPENDIX M

EQUIPMENT MODIFICATIONS AND REPAIRS LOG Page of

REPORT NUMBER

Date: Description of modification or repair:

Date: Description of modification or repair:

Author:

Author:

Date: Description of modification or repair:

Author:

Date: Description of modification or repair:

Author:

RevO, 9/14/09

AECOM Environment 1035 Kepler Drive, Green Bay, Wisconsin 54311 1920,468.1978 F 920.468.3312 www.aecom.com

AECOM

Appendix D

Bulkhead Wall Performance Monitoring Plan

Operable Units 2 - 5 , Lower Fox River and Green Bay Site Remedial Action

AECOM Environment

APPENDIX D - BULKHEAD WALL MONITORING PLAN

Tetra Tech EC, Inc. Page 2

AECOM, Inc. April 2009 Document No.: 200802371

AECOM Environment APPENDIX D - BULKHEAD WALL MONITORING PLAN AECOM

Tetra Tech EC, Inc. Page 1

Contents

1.0 Background Information 1-1

2.0 Performance Monitoring 2-1

2.1 Bulkhead Wall Monitoring 2-1 2.1.1 Arc Weldable Strain Gauges 2-1 2.1.2 In-Place Inclinometers 2-1 2.1.3 Survey Monitoring Points 2-2

2.2 Foundation Soils Monitoring 2-2 2.2.1 Piezometers 2-2 2.2.2 Inclinometers 2-2 2.2.3 Settlement Plates 2-2 2.2.4 Confirmation Borings and Cone Penetrometer Testing 2-3 2.2.5 Data Collection and Management 2-3

3.0 Global Stability Analyses 4

APPENDIX D - BULKHEAD WALL MONITORING PLAN E S - 1 September 2009

Tetra Tech EC, inc. Page 1-1

1.0 Background Information

As part the development of the former Shell Property site for the Lower Fox River Remedial Action a steel bulkhead wall will be constructed to enable the east side of the property to used as a marine staging and access area. The bulkhead will provide direct access to the river and serve as a staging area for barges, equipment, labor, and materials used for debris handling, dredging, capping, and sand covering activities. The steel bulkhead wall was designed by PND Engineers, Inc. (PND), of Seattle, Washington, using their proprietary OPEN CELL® sheet pile bulkhead design. The wall will be founded in the organic silts and organic clays underlying the site. The OPEN CELL design is a cellular structure using continuous flat pan steel sheeting along the waterfront forming interconnected arches with perpendicular anchor tail walls extending landward forming the OPEN CELL configuration. Between each ceil an anchor tail wall extends at right angles away from the water holding the front arched sheet pile wall in place. The river front sheets for each cell are designed using 55-foot long steel sheet piles, while the tail walls use 50-foot long sheet piles. After the sheet piles are installed the area between the bulkhead wall and the shoreline will be backfilled with beneficially reused sand or other granular soil in a controlled manner while the performance of the wall is monitored.

Final design of the bulkhead wall and the wick drain system is presented on the set of thirteen drawings prepared by PND and STS|AECOM (December 2008). Design calculations and commentary are presented and discussed in PND's Design Calculations report dated July 2008, stamped August 11, 2008 and STS|AECOM's Geotechnical Design Calculations PND Open Cell Bulkhead Wall report dated August 14, 2008. The design live loading conditions for the bulkhead wall are 200 psf uniformly distributed live load from the face of the bulkhead wall and a 300 psf stockpile load 100 feet from the face of the bulkhead.

To allow the bulkhead wall to be constructed and backfilled to the desired elevation +592.0 feet North American Vertical Datum 1988 (NAVD 1988), the foundation organic silts and clays that the wall will be founded in require improvement. A wick drain and blanket drainage system has been designed to allow the dissipation of excess pore water pressure and consolidation of the organic silts and clays when fill is placed above and behind the bulkhead system. The wick drain accelerated consolidation of these soils will result in an increase in undrained shear strength of the soils in a matter of months rather than years due to closer packing of soil particles. The performance monitoring of the subsurface soils during the filling process and confirmation exploration will dictate when and at what rate the backfilling behind the bulkhead can precede for each successive stage of higher elevation fill.

APPENDIX D - BULKHEAD WALL MONITORING PLAN 1-1 September 2009

Tetra Tech EC, Inc. Page 2-1

2.0 Performance Monitoring

The performance monitoring program for the bulkhead wall is divided into two monitoring systems, instrumentation of the sheet pile wall and instrumentation in the foundation soils behind the wall. Collectively, the performance monitoring program will confirm that the wall and foundation soils are performing as modeled, on a real-time basis. The data collected from the monitoring program will be evaluated and entered into the stability analysis to compute a real-time effective stress analysis (ESA) factor of safety during the staged development of the bulkhead site. If the factor of safety drops below 1.5, filling will stop in that area until the excess porewater pressures in the organic silts and clays have dissipated to a safe level and filling resumed. The rate of future filling will be based on periodic stability re-evaluations that will be done prior to filling up to the next stage. Based on the real-time data, the performance monitoring and stability review program will allow for staged development of the bulkhead wall.

2.1 Bulkhead Wall Monitoring

The bulkhead steel wall will be monitored for performance during staged filling using strain gauges installed on anchor walls, wall inclinometers, and survey monitoring. Due to the amount of instrumentation being installed and the staged filling that is required to reach final elevations, remote data acquisition systems will be used to collect and transmit electronic instrument monitoring data for off-site analysis. A more detailed description of this instrumentation is as follows.

2.1.1 Arc Weldable Strain Gauges

Arc-weldable strain gauges will be installed on three tail walls labeled 7/8, 16/17, and 25/26. The monitoring requirements are defined on PND Drawing No. 3 of 13 - General Notes, the location of the instrumentation is shown on PND Drawing No. 6 of 13 - Partial Cell Layout & Typical Details, and the construction details are shown on PND Drawing No. 8 of 13 - Typical Sections. The gauges will monitor the tensile strain in the steel sheeting used for the anchor tail walls. The gauges from each of the tailwalls will be connected to a separate data acquisition systems to provide for redundancy should one locations be temporarily non-functional. Strain gauge data will be collected on a weekly or more frequent basis during construction until the differential strain is reduced to zero for three consecutive weeks. Data will be submitted to the project team for review. Strain gauges and data collection equipment will be protected and maintained for future data collection throughout the duration of the project.

2.1.2 In-Place Inclinometers

Vertical inclinometer casings will be installed on the inside of the face steel sheeting at six locations. The monitoring requirements are defined on PND Drawing No. 3 of 13 - General Notes, the location of the instrumentation is shown on PND Drawing No. 6 of 13 - Partial Cell Layout & Typical Details, and the construction details are shown on PND Drawing No. 8 of 13 - Typical Sections. Because of the staged filling and the top of the bulkhead will be approximately 18 feet above the river surface after initial installation limiting access to the top of casing, in-place inclinometers will be used to provide continuous real-time readings for lateral movement. Four in-place inclinometers (top of sheet, pre-dredge mud line, post dredge mud line, and bottom of sheeting) will be installed in each casing and connected to the data acquisition system described above. The inclinometer data will be collected on a weekly or more frequent basis during construction until movement has slowed to minimum levels. Data will be submitted to the project team for review. The inclinometer casing and data collection equipment will be protected and maintained for future data collection throughout the duration of the project.

APPENDIX D - BULKHEAD WALL MONITORING PLAN 2 - 1 September 2009

Tetra Tech EC, Inc. Page 2-2

2.1.3 Survey IVIonitoring Points

Survey monitoring of the "wye" pile at the arch/tail wall interface and at the center of the cell shall take place weekly during pile installation and during staged filling. This will be performed until movement (e.g. < 1/4 inch) has ceased for three consecutive surveys. A stable local benchmark will be established on the existing shore with two to three back-site reference points. The survey data will be collected on a weekly basis for each of the 27 wall monitoring locations. The position of the survey monitoring point in north, east, and elevation (N, E, and El.) coordinates will be submitted to the design team for review. The accuracy of the surveys will be + 1/4 inch.

2.2 Foundation Soils Monitoring

To monitor the performance of the compressible foundation soils ten (10) vibrating wire piezometers, thirteen (13) settlement plates, and four (4) inclinometers will be installed for performance monitoring. In addition, confirmation borings of the subgrade soils will be completed prior to wall construction Stages 5, 7, and 9. The stability evaluation of the bulkhead wall is based on the installation of a wick drain and blanket drainage system to speed the consolidation and strengthening the organic silts and clays during staged surcharge filling. The instrumentation will be installed as soon as practical during Stage 4 filling for ground improvement zone instrumentation and during Stage 5 for Zone B filling. The instrumentation monitoring will occur on a weekly basis after initial construction and during Stages 5, 6, 7 and 8. Once work is suspended for the dredging season and along the bulkhead wall, monitoring may be discontinued until the week before work resumes next season.

2.2.1 Piezometers

Vibrating wire piezometer nests of two (2) piezometers each will be installed at 10 locations in the ground improvement area to document and monitor the pore pressures of the subsurface soils. Data from the piezometers will be collected on a weekly or more frequent basis during construction until the pore pressures have dissipated to hydrostatic levels. Data will be collected and submitted to the project team for review and evaluation in a global stability analysis model of the bulkhead wall. The piezometers shall be protected and maintained for future data collection throughout duration of the project.

2.2.2 Inclinometers

Inclinometer casing (slip casing to account for settlement) is to be installed at four (4) locations with the base of the casing extending a minimum of 5 feet into bedrock and/or hardpan soils. Three inclinometers will be installed in the Zone A Wick Drain Zone at the end of tail walls labeled 7/8, 16/17, and 25/26. A fourth inclinometer casing will be installed in the Zone B Wick Drain Zone, approximately 84 feet from the end of tail wall labeled 7/8. The inclinometers will be read weekly during construction and staged filling to monitor for lateral movement. The monitoring requirements are defined on STS|AECOM Drawing No. 10 of 13 -Geotechnical Instrumentation Plan and STS|AECOM Drawing No. 12 of 13 - Ground Improvement Notes. The inclinometer data will be collected on a weekly or more frequent basis during construction until movement is found to have ceased for three consecutive months. Data will be submitted to the design team for review. The inclinometer casing shall be protected and maintained for future data collection throughout the duration of the project.

2.2.3 Settlement Plates

Settlement plates will be installed at thirteen (13) locations in the ground improvement area to monitor for settlement and horizontal movement during staged filling. The settlement plates wiil be monitored until movement has ceased for three consecutive months. A central location hub will be established on the existing shore with two to three reference points. The survey data for each of the 13 settlement plates will be collected

APPENDIX D - BULKHEAD WALL MONITORING PLAN 2 - 2 September 2009

Tetra Tech EC, Inc. Page 2-3

on a weekly basis. The position of the survey monitoring point in N, E, and El. coordinates will be submitted to the design team for review. The accuracy of the surveys will be +/- 0.01 foot. The ratio of the horizontal movement (as measured by the inclinometers installed adjacent to the wall) to the vertical settlement (measured by the settlement plates) will be limited to less than 0.2. If the ratio exceeds 0.2, the instrumentation shall be monitored daily. If the ratio exceeds 0.3 filling will stop immediately and an assessment will be made to determine the necessary actions to bring the ratio of horizontal to vertical movements below 0.2.

2.2.4 Confirmation Borings and Cone Penetrometer Testing

Based on field and laboratory data obtained from previous investigation, the initial undrained shear strength of the organic silt was measured to be 350 pounds per square foot (psf) and the organic clay was measured to be 675 psf At the end of Stage 6, the undrained shear strength for the organic silt is estimated to increase from a pre-construction measured 350 psf to an assumed 600 psf and the undrained shear strength for the organic clays is estimated to increase from a measured 675 psf up to an assumed 950 psf within Zone A. At the end of the Stage 8 (filling up to elevation +592 feet NAVD 1988) the increase in undrained shear strength for the organic silts is estimated to be 900 psf and for the organic clays is estimated to be 1,250 psf within Zone A. These estimates will be verified periodically during construction. The rate of backfilling must be controlled by the rate of consolidation and strength gain of the organic silts and clays to maintain the minimum factor of safety for wall and fill stability. The actual increase in undrained shear strength will need to be determined using Field Vane Shear (FVS) or Piezocone Penetrometer (CPTu) testing during backfilling of the bulkhead wall.

Confirmation test borings, vane holes, and CPTu probes will be completed at the end of Stage 4, 5, and 7 to measure increased shear strength in the organic silts and clays. The boring at the end of stage 4 and 5 will be completed in conjunction with the instrumentation installation and will include CPTu, FVS, and laboratory testing to determine undrained shear strength and strength increase.

2.2.5 Data Collection and Management

Three remote data acquisition systems will be used to collect readings of the in-place inclinometers and strain gauges mounted on the steel bulkhead wall. These three locations will be powered by separate 20-watt solar power panel with 12-volt regulator. Data from each location will be transmitted to a central server on-site by cellular digital modem. The data stored on the server can be accessed by the project team in real-time. The remaining instrumentation will be monitored on a weekly basis during construction and stage filling. The data will be collected, reviewed, and distributed on a weekly basis. All of the performance monitoring data will be used to confirm that the wall and foundation soils are performing as modeled and used to control staged construction, on a real-time basis.

APPENDIX D - BULKHEAD WALL MONITORING PLAN 2 - 3 September 2009

Tetra Tech EC, Inc. Page 3-1

3.0 Global Stability Analyses

The global stability analysis was performed using the pre-construction measured undrained shear strengths at the end of key construction stages. Based on the available geotechnical site information, and assuming implementation surveys, performance monitoring, and confirmation testing during construction, a minimum factor of safety (FS) of 1.3 during backfilling and a minimum FS of 1.5 for post-construction stability were adopted to protect the navigable waterway and permanent dock. The global stability analysis results indicate that if the estimated increase in the undrained shear strength is achieved at the end of the key construction stages, the computed FS should be in excess of 1.5; exceeding the minimum value of 1.3. The post construction factor of safety should be in excess of 1.6; exceeding the minimum value of 1.5. However, if the implementation surveys, performance monitoring, or confirmation testing show that the undrained shear strength has not reached the required strength and additional analysis determines that the next stage of construction will result in a FS below 1.3, then fill placement adjacent to the bulkhead wall will need to be delayed until the organic soils have reached the required strength or lateral movements have resided to de-minimus levels.

APPENDIX D - BULKHEAD WALL MONITORING PLAN 3-1 September 2009