to: all holders of contract documents for
TRANSCRIPT
TO: ALL HOLDERS OF CONTRACT DOCUMENTS FOR:
City of Santa Fe, New Mexico
Wastewater Management Division
Anaerobic Digester Project
BID ‘18/08/B
The following Addendum shall be incorporated into the Contract Documents for the above referenced
project.
ADDENDUM NO. ONE (1)
February 6, 2018
Pre-Bid Conference:
A pre-bid conference was held on January 30, 2018. A copy of the agenda and sign in sheet of the pre-
bid conference is attached. In addition to items listed in agenda, additional items and clarifications
discussed at meeting were as follows:
• The Bid Form will be reissued to include the Utility Relocation Allowance.
• The Bid Form will be reissued to change the description for the Cogeneration System Allowance.
• Bidders are to refer to Front End Specifications for Owner’s instructions relating to local
preferences.
• The Geotechnical Engineering Report will be issued as part of Addendum No. 1.
• The Bid date cannot be extended due to the Owner’s Bid Schedule.
• In addition to the City’s website, any Addendum issued will be posted on Academy
Reprographics Online Plan room.
• The City is coordinating with PNM on the electrical connection for the Cogen System which is to
be paid out of the Cogeneration System Allowance. This electrical connection will be for the
Cogen System only and not affect those items included in the Base Bid.
• Award will be based of the Base Bid. Additive Alternate may be awarded to the successful
bidder if the bid amount is within the Owner’s available funding.
• Contractor shall submit all questions in writing via email to the City. Verbal questions will not be
answered.
Questions during Pre-Bid Conference
• Question: This Bid Form states "two complete copies of the bid submittal is required". May one
copy be copied from the original or does each copy need to be signed?
Response: Only one original copy is required. The second may be a copy of the original.
For Chris Rodriguez, P.E.
HDR Project Manager
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 1 of 58
• Question: Will the Asbestos Survey and any asbestos removals be paid out of the allowance?
Response: Contractor shall include asbestos survey in bid. If asbestos is discovered, asbestos
removal will be paid out of the Administration Building Control and Server Room Modifications
Allowance.
• Question: What is the engineer’s estimate and Owner’s budget?
Response: The engineer’s estimate is being refined and will be made available to Bidders by
Addendum when completed.
• Question: How are the amounts for the allowances to be determined?
Response: The Allowances amounts are stipulated on the Bid Form.
• Question: Are there any as-built drawings on the two concrete structures that we are to remove?
Response: Drawings will be made available to bidders on this addendum. The drawings are for
information purposes only and no additional costs will be made to Contractor if drawings differ
from actual conditions in field.
• Question: Does any of the demolition materials get salvaged to the Owner?
Response: Owner reserves the first right for salvaged equipment and materials to be removed
and/or demolished. Prior to demolition, Contractor shall coordinate with Owner to identify any
items to be salvaged. Contractor shall remove and place any salvaged items identified by Owner
to Owner’s designated area within the Wastewater Treatment Plant.
• Question: Are there any requirements for a temporary office trailer to be provided during
renovations of the Administration Building?
Response: The City will provide temporary office space for employees during the renovations of
the Administration Building. Contractor to move any office equipment and furniture identified by
Owner to Owner’s designated area. The Contractor can only perform work after Owner’s
normal working hours or on weekends when Administration Building is not occupied by City
staff.
• Question: Does the new SCADA system get integrated with the Buckman Water Treatment Plant
SCADA system?
Response: No.
Questions / Clarifications:
1. Question: Can the mixing manufacture furnish alternative bid for the digester recirculation pumps.
This is a typical chopper pump application, which would be cost saving to the customer. This would
eliminate the specified rotary lobe pump and unneeded quantity two inline grinders. If so, please
provide the exact duty point that’s required (I.E Flow/TDH).
Response: Only the equipment as specified will be approved. No alternative type of equipment will
be considered for any equipment specified for the project.
2. Question: 40 90 05.3.19.D- Per this section the digester should have a foam suppression nozzle and
scum nozzle, the contract drawing don’t reflect these particular items as they aren’t shown. Lastly A
foam buster typically isn’t used in conjunction with a floating cover, and must be eliminated. Since
all nozzle must be located below the Minimum side water depth, an Scum nozzle could be located at
and/or below the concrete corbels.
Response: The foam suppression system is not required and is removed by this addendum.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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3. 40 90 05.3.19.E- Per this section Digester Mixing pumps will be controlled Via VFD, yet this isn’t
indicated on the electrical drawings. Please confirm.
Response: This comment is under review and will be addressed by Addendum No. 2.
4. Section 43 21 00.2.1- Acceptable seal manufactures, this section conflicts with the specified seal in
section 46 73 34.2.6.9. Mixing manufacture will furnish Cartridge Flushless mechanical seal per
section 46 73 34.2.6.9 which is manufactured by the mixing pump manufacture.
Response: Specification Section 43 21 00 2.1 A. 32. C. notes “Or as noted in the individual pump
Specification Sections”, therefore, mechanical seals for the digester mixing pumps shall be as
specified in Specification Section 46 73 34.
5. Question: Due to the elevation of the specified project, since NPSH becomes a factor. The mixing
manufacture strongly recommends the digesting mixing pump suction be minimum of 12” to reduce
the friction loss in the system. Please confirm?
Response: Digester mixing manufacturer shall confirm suction and discharge pipe sizes. A note
clarifying the suction and discharge pipe sizing will be added to drawings by this addendum.
6. Question: Please clarify if pipe mounted mixing nozzle are acceptable, or standard mixing nozzles
with bases are required for all specified manufactures?
Response: Mixing nozzles with bases are required as specified and as shown on Drawings.
7. Per the contract drawing, indicate the mixing pumps/motor are in classified area INDOOR-
WET/CORROSIVE, yet section 46 73 00.2.1 A states electric motors are Class 1 Div 1. Please
Confirm area classification for the mixing pumps?
Response: The area classification is as noted on Drawings.
8. In spec section 01 61 05 Item 6 Digester Boiler you list 3 acceptable suppliers and in section 46 73 41
Boilers you list two other suppliers. Please provide us with the correct suppliers.
Response: All suppliers listed are acceptable. The approved major equipment suppliers list has been
updated as part of this addendum.
Construction Contract Documents & Technical Specifications:
1. Bid Form – Replace pages BF-4 and BF-5 with the attached.
2. Specification Section 01 61 05 Major Equipment Suppliers.
• Subsection 1.4.A.5., Digester Mixing External Pump Type, Add the following manufacturers.
c. Hayward Gordon (Hydromix System).
d. WEMCO.
• Subsection 1.4.A.6., Digester – Boiler, Add the following manufacturers.
d. Hurst Boiler & Welding Company, Inc.
e. Burnham.
3. Specification Section 46 73 35 Digester Gas Equipment
• Subsection 2.1. A.; Add “3. Shand and Jurs” as an acceptable manufacturer.
• Subsection 2.7. Waste Gas Burner; Delete in its entirety and replace with “NOT USED”. There
is no new waste gas burner for this project. The waste gas burner referenced throughout the
specifications is for the existing waste gas burner.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 3 of 58
4. Specification Section 40 90 05 Anaerobic Digester Mixing System Functional Description
• Page 16, 3.19.D., delete in it’s entirety and replace with “Not Used”. There is no foam
suppression / scum breaker system for the new digesters.
5. Specification Section 46 33 13 – Polymer Blending Unit. Change footer specification number from
“11341” to “46 33 13”.
6. Specification Section 46 73 41 – Boilers.
• Subsection 2.1.A.1.a., b, & c., Delete list and replace with “a. See Section 01 61 05”.
• Subsection 2.1.A.4.a., Delete and replace with “a. See Section 01 61 05.
Contract Drawings:
1. Sheet 00D-05, Delete detail 5, Waste Gas Burner. There is no new waste gas burner for this project.
2. Sheet 01C-05
• Grid 3-B, Delete “Proposed Waste Gas Burner, See 1/03S-05” and replace with “Existing Waste
Gas Burner”.
3. Sheet 01C-06
• Grid 2-A, Delete “Proposed Waste Gas Burner, See 1/03S-05” and replace with “Existing Waste
Gas Burner”.
4. Sheet 02D-01
• Add the following to suction discharge piping, fittings and valves for both sets of digester mixing
chopper pumps, “12-inch discharge and suction piping, fittings and valves. Digester mixing
manufacturer shall confirm pump suction and discharge pipe size”.
5. Sheet 02D-03
• Digester mixing chopper pump, Change suction and discharge piping, fittings and valves from
“10-inch” to “12-inch”. Add the following note to suction and discharge piping, “Digester
mixing manufacturer shall confirm pump suction and discharge pipe size”.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
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BF - 4
BID FORM
CIP #950 Paseo Real Wastewater Treatment Plant Anaerobic Digester Project
BIDDER will complete the Work in accordance with the Contract Documents for the following prices (All amounts shown are lump sum, complete in place, excluding NMGRT):
ITEM No.
DESCRIPTION QUANTITY UNIT PRICE (Excluding NMGRT)
1 MOBILIZATION 1 LS $
2 SITE WORK 1 LS $
3 YARD PIPING 1 LS $
4 DIGESTER EQUIPMENT
BUILDING 1 LS $
5 ANAEROBIC DIGESTER
TANKS 1 LS $
6 DEWATERING BUILDING
BELT FILTER PRESS #3 1 LS $
7
ADMINSTRATION BUILDING
CONTROL AND SERVER
ROOM MODIFICATIONS
1 LS $
8 ELECTRICAL AND SCADA 1 LS $
9 DEMOBILIZATION 1 LS $
10 TESTING ALLOWANCE 1 LS $ 50,000.00
11 UTILITY RELOCATION
ALLOWANCE 1 LS $ 50,000.00
12
ADMINSTRATION BUILDING
CONTROL AND SERVER
ROOM MODIFICATIONS
ALLOWANCE
1 LS $ 50,000.00
13
SLUDGE HOLDING TANK 2
AND PIPE CLEANING
ALLOWANCE
1 LS $ 100,000.00
BASE BID PLUS ALLOWANCES: TOTAL BID ITEMS 1 – 13: $
New Mexico Gross Receipts Tax (NMGRT) @ 8.4375% $
TOTAL BASE BID AMOUNT PLUS ALLOWANCES AND NMGRT $
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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BF - 5
TOTAL BASE BID AMOUNT PLUS ALLOWANCES AND NMGRT (In words):
THE SUM OF ________________________________________________________________________
____________________________________ DOLLARS AND __________________________ CENTS.
* ADDITIVE ALTERNATE BID
ITEM No.
DESCRIPTION QUANTITY UNIT PRICE (Excluding NMGRT)
14 COGENERATION SYSTEM 1 LS $
15 COGENERATION POWER
DISTRIBUTION ALLOWANCE 1 LS $ 100,000.00
ADDITIVE ALTERNATE PLUS ALLOWANCE: TOTAL ITEMS 14-15 $
New Mexico Gross Receipts Tax (NMGRT) @ 8.4375% $
TOTAL ADDITIVE ALTERANTE PLUS ALLOWANCE AND NMGRT $
* City reserves the right to award Additive Alternates listed depending on available funding. * Bidders choosing not to provide pricing on Alternates may be considered non-responsive and their bid rejected.
TOTAL ADDITIVE ALTERNATE AMOUNT PLUS ALLOWANCES AND NMGRT (In words):
THE SUM OF ________________________________________________________________________
____________________________________ DOLLARS AND __________________________ CENTS.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks
and Equipment Building
Paseo Real Wastewater Treatment Plant
73 Paseo Real
Santa Fe, New Mexico
May 19, 2016
Terracon Project No. 66165052
Prepared for:
HDR Engineering, Inc.
Albuquerque, Arizona
Prepared by:
Terracon Consultants, Inc.
Albuquerque, New Mexico
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
TABLE OF CONTENTS
Page
EXECUTIVE SUMMARY ............................................................................................................. i
1.0 INTRODUCTION ............................................................................................................ 1
2.0 PROJECT INFORMATION ............................................................................................ 1
2.1 Project Description .............................................................................................. 1
2.2 Site Location and Description ............................................................................. 2
3.0 SUBSURFACE CONDITIONS ....................................................................................... 3
3.1 Typical Subsurface Profile .................................................................................. 3
3.2 Groundwater ....................................................................................................... 4
4.0 RECOMMENDATIONS FOR DESIGN AND CONSTRUCTION ..................................... 4
4.1 Geotechnical Considerations .............................................................................. 4
4.2 Earthwork ........................................................................................................... 5
4.2.1 Site Preparation ....................................................................................... 5
4.2.2 Excavation ............................................................................................... 6
4.2.3 Subgrade Preparation.............................................................................. 6
4.2.4 Fill Materials and Placement .................................................................... 7
4.2.5 Compaction Requirements ...................................................................... 8
4.2.6 Grading and Drainage ............................................................................. 8
4.2.7 Corrosion Potential .................................................................................. 9
4.3 Foundation Recommendations ........................................................................... 9
4.3.1 Footings or Mat Foundation Design Recommendations .......................... 9
4.3.2 Footings or Mat Foundation Construction Considerations .......................10
4.4 Seismic Considerations and Liquefaction Potential ............................................11
4.5 Floor Slab ..........................................................................................................12
4.5.1 Design Recommendations ......................................................................12
4.5.2 Construction Considerations ...................................................................12
4.6 Lateral Earth Pressures .....................................................................................13
4.6.1 Design Recommendations ......................................................................13
5.0 GENERAL COMMENTS ...............................................................................................13
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Responsive ■ Resourceful ■ Reliable
TABLE OF CONTENTS– continued
Exhibit No.
Appendix A – Field Exploration
Site Location Map ....................................................................................................A1
Boring Location Plan ...............................................................................................A2
Field Exploration Description ...................................................................................A3
Boring Logs ................................................................................................ A4 thru A8
General Notes .........................................................................................................A9
Unified Soil Classification System .......................................................................... A10
Appendix B – Laboratory Testing
Laboratory Test Description .....................................................................................B1
Grain Size Distribution ................................................................................ B2 thru B3
Consolidation Test Results ......................................................................... B4 thru B5
Summary of Laboratory Results ................................................................. B6 thru B7
Chemical Test Results
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
EXECUTIVE SUMMARY This geotechnical executive summary should be used in conjunction with the entire report for design and/or construction purposes. It should be recognized that specific details were not included or fully developed in this section, and the report must be read in its entirety for a comprehensive understanding of the items contained herein. The section titled General Comments should be read for an understanding of the report limitations. A geotechnical exploration has been performed for the proposed City of Santa Fe Anaerobic Digester Tanks and Equipment Building project located at the Paseo Real Wastewater Treatment Plant at 73 Paseo Real in Santa Fe, New Mexico. Terracon’s geotechnical scope of work included the advancement of five (5) test borings to depths ranging from approximately 51-½ to 70-½ feet below existing site grades. Based on the information obtained from our subsurface exploration, the site is suitable for development of the proposed project. The following geotechnical considerations were identified: Site Development: An existing abandoned clarifier tank, structures, pavements and gravel are located within or directly adjacent to the project site. These structures and elements will need to be removed prior to new construction. Existing below ground utilities within and adjacent to the site were observed and should be considered in the design and development of the project. Site Soils: The site soils generally consisted of sand with varying amounts of silt, clay, and gravel, silt with varying amounts of sand and gravel, lean clay with varying amounts of sand and gravel. On-site soils should be suitable for use as engineered fill or as backfill against structures and foundations. Extra processing effort will likely be required for the clayey soils to produce a uniform engineered fill material. Foundations: Based on the geotechnical engineering analyses, subsurface exploration and laboratory test results, the proposed tanks may be supported on a concrete slab with perimeter thickened edges bearing on undisturbed native soils. The equipment building may be supported on shallow foundation systems consisting of spread/continuous footings or mat foundation bearing on prepared subgrade or a zone of engineered fill. Floor Slabs: The on-site near surface soils are expected to exhibit non- to low expansive and low settlement potentials when compacted and subjected to light loading conditions such as those imposed by floor slabs. Construction of floor slabs associated with the equipment building supported on footings should bear prepared subgrade or a zone of engineered fill, provided some movement can be tolerated. Earthwork on the project should be observed and evaluated by Terracon or a qualified geotechnical engineer. The evaluation of earthwork should include observation and testing of engineered fill, subgrade preparation, foundation bearing soils, and other geotechnical conditions exposed during construction.
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Responsive ■ Resourceful ■ Reliable
GEOTECHNICAL ENGINEERING REPORT
CITY OF SANTA FE ANAEROBIC DIGESTER TANKS
AND EQUIPMENT BUILDING
PASEO REAL WASTEWATER TREATMENT PLANT
73 PASEO REAL
SANTA FE, NEW MEXICO
Terracon Project No. 66165052
May 19, 2016
1.0 INTRODUCTION
This report presents the results of our geotechnical engineering services performed for the
proposed City of Santa Fe Anaerobic Digester Tanks and Building project located at the Paseo
Real Wastewater Treatment Plant at 73 Paseo Real in Santa Fe, New Mexico. The report
addresses the following:
subsurface soil conditions concrete and metal corrosion potential
earthwork foundation design and construction
seismic considerations floor slab design and construction
lateral earth pressure groundwater conditions
Our geotechnical engineering scope of work for this project included the advancement of five (5)
test borings to depths ranging from approximately 51-½ to 70-½ feet below existing site grades.
Logs of the borings along with a Site Location Map and Boring Location Plan are included in
Appendix A of this report. The results of the laboratory testing performed on soil samples obtained
from the site during the field exploration are included in Appendix B of this report. Descriptions of
the field exploration and laboratory testing are included in their respective appendices.
2.0 PROJECT INFORMATION
2.1 Project Description
ITEM DESCRIPTION
Site layout Refer to the Site Location Map and Boring Location Plan (Appendix
A).
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
ITEM DESCRIPTION
Building/structures Two (2) Digester Tanks
Equipment Building
Construction
Digester Tanks – Pre-stressed, post-tensioned cast-in-place
concrete
Equipment Building – Masonry load bearing walls and cast-in-
place construction
Height and diameter of tank Height – 25 to 30 feet (including lowest depth of sloped floor)
Diameter – 55 feet
Proposed foundations and
depth
Digester Tanks - Concrete slab with thickened edges
Equipment Building - Shallow spread and/or continuous
footings or mat
Anticipated foundation slab
loads
Digester Tanks:
Perimeter walls - 3,000 to 4,500 plf
Fluid pressure – 1,500 to 2,000 psf
Equipment Building – 1,000 to 2,000 plf
Tank floor support Aggregate base course and/or engineered fill
Below grade construction
Digester Tanks – 10 to 12 feet
Equipment Building – 10 to 12 feet
Utility pipelines – 12 to 15 feet
2.2 Site Location and Description
ITEM DESCRIPTION
Location Paseo Real Wastewater Treatment Plant, 73 Paseo Real, Santa
Fe, New Mexico.
Existing site features
(site interior)
The site is currently occupied by an abandoned partially buried
clarifier tank. Existing underground utilities were observed
throughout the site.
Surrounding developments
North: Existing asphalt concrete paved drive and secondary
clarifier basins
East: Existing digester/transfer storage tanks and building
West: Existing sludge beds, buildings and structures
South: Existing tank
Current ground cover Existing abandoned clarifier tank, asphalt concrete pavement,
gravel, vegetation and soil
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Existing topography The site is relatively level to moderately sloping down to the north
and west
3.0 SUBSURFACE CONDITIONS
3.1 Typical Subsurface Profile
Specific conditions encountered at each boring location are indicated on the individual boring logs.
Stratification boundaries on the boring logs represent the approximate location of changes in soil
types; in-situ, the transition between materials may be gradual. Details for each of the borings can
be found on the boring logs included in Appendix A of this report. Based on the results of the
borings, subsurface conditions on the project site can be generalized as follows:
Description Approximate Depth to
Bottom of Stratum (feet) Material Encountered Consistency/Density
Stratum 1 6-½ to 23 Sand. The clay, silt and
gravel content varied Loose to Medium Dense
Stratum 2 7-½ to 47-½
Lean clay. The sand and
gravel content varied.
Silt. The sand and gravel
content varied
Medium Stiff to Hard
Stratum 3 51-½ to 70-½ Sand. The clay, silt and
gravel content varied
Medium Dense to Very
Dense
The subsurface sand and silt soils were non-plastic to medium in plasticity. The subsurface clay
soils were medium in plasticity.
Laboratory tests were conducted on selected soil samples and the test results are presented in
Appendix B. Laboratory test results indicate that the surface and near surface soils exhibit low
compressibility potentials at in-situ moisture contents and a low tendency for compression and a
non-tendency for expansion when wetted and under anticipated foundation loads. When water
is added to samples of laboratory compacted near-surface soils, we anticipate that the
compacted soils will exhibit low compression and non- to low expansive potential when
subjected to light loading conditions such as those imposed by floor slabs.
Laboratory test results indicate that on-site soils exhibit resistivity values of 1,460 and 2,50 ohm-
centimeters, pH values of about 8.3 and 8.6 and soluble sulfate concentrations of 36 to 110
mg/kg.
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
3.2 Groundwater
Groundwater was observed in the test borings at depths ranging from about 41 to 63 feet below
existing site grade at the time of field exploration. These observations represent groundwater
conditions at the time of the field exploration and may not be indicative of other times, or at
other locations. Groundwater conditions can change with varying seasonal and weather
conditions, and other factors.
Zones of perched and/or trapped groundwater may also occur at times in the subsurface sand
soils overlying clay soils. The location and amount of perched water is dependent upon several
factors, including hydrologic conditions, type of site development, irrigation demands on or
adjacent to the site, fluctuations in water features, seasonal and weather conditions.
Fluctuations in groundwater levels can best be determined by implementation of a groundwater
monitoring plan. Such a plan would include installation of groundwater monitoring wells, and
periodic measurement of groundwater levels over a sufficient period of time.
4.0 RECOMMENDATIONS FOR DESIGN AND CONSTRUCTION
4.1 Geotechnical Considerations
The site appears suitable for the proposed construction based upon geotechnical conditions
encountered in the test borings. The existing soils exhibit a low tendency for compression and a
non- to low tendency for expansion when wetted and under anticipated foundation loads will
require particular attention in the design and construction.
Existing buildings, structures, gravel and pavements are located within or directly adjacent to
the project site. These structures and elements will need to be removed prior to new
construction. Existing below ground utilities within and adjacent to the site were observed and
should be considered in the design and development of the project.
Based on the geotechnical engineering analyses, subsurface exploration and laboratory test
results, the proposed tanks may be supported on a concrete slab with perimeter thickened
edges and/or interior footings bearing on undisturbed native soils. The equipment building may
be supported on shallow foundation systems consisting of spread/continuous footings or mat
foundation bearing on prepared subgrade or a zone of engineered fill. Slab-on-grade may be
used for the interior floor system associated with the equipment building supported on footings
should bear on prepared subgrade or a zone of engineered fill, provided some movement can
be tolerated.
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On-site soils should be suitable for use as engineered fill and to backfill foundations. Extra
processing effort will likely be required for the clayey soils to produce a uniform engineered fill
material.
Geotechnical engineering recommendations for the foundation systems and other earth
connected phases of the project are outlined below. The recommendations contained in this
report are based upon the results of field and laboratory testing (which are presented in
Appendices A and B), engineering analyses, and our current understanding of the proposed
project.
4.2 Earthwork
The following presents recommendations for site preparation, excavation, subgrade preparation
and placement of engineered fills on the project. The recommendations presented for design
and construction of earth supported elements including foundations, slabs and pavements are
contingent upon following the recommendations outlined in this section.
Earthwork on the project should be observed and evaluated by Terracon or a qualified
geotechnical engineer. The evaluation of earthwork should include observation and testing of
engineered fill, subgrade preparation, foundation bearing soils, and other geotechnical
conditions exposed during the construction of the project.
4.2.1 Site Preparation
Strip and remove the existing structures (where applicable), pavements, vegetation, gravel, and
other deleterious materials from proposed new tank and building areas. Exposed surfaces
should be free of mounds and depressions which could prevent uniform compaction.
Demolition of existing structures should include complete removal within the proposed
construction area. All materials derived from the demolition of existing structures and elements
should be removed from the site, and not be allowed for use in any on-site fills unless
adequately processed and blended with on-site or imported soils.
Stripped materials consisting of vegetation and organic materials should be wasted from the
site, or used to revegetate landscaped areas or exposed slopes after completion of grading
operations. Organic materials (if encountered) on-site should be placed in non-structural areas,
and in fill sections not exceeding 5 feet in height.
The site should be initially graded to create a relatively level surface to receive fill, and to
provide for a relatively uniform thickness of fill beneath proposed structures.
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Evidence of underground facilities and utilities was observed during the site reconnaissance.
Therefore, such features could be encountered during construction. If loose or soft fills or
underground facilities (to be abandoned) are encountered, such features should be removed
and the excavation thoroughly cleaned prior to backfill placement and/or construction.
4.2.2 Excavation
It is anticipated that the shallow excavations planned for the proposed construction can be
accomplished with conventional earthmoving equipment.
Based on the results from the soil borings, we do not anticipate groundwater control measures
will be necessary in excavations up to about 41 feet below existing site grades. However,
depending upon depth of excavation and seasonal conditions, groundwater may be
encountered at shallower depths in excavations on the site. Pumping from sumps may be
utilized to control water within excavations.
On-site soils may pump or become unstable or unworkable at high water contents. Workability
may be improved by scarifying and drying, this condition is likely as excavations approach
groundwater conditions. Overexcavation of wet zones and replacement with granular materials
may be necessary. Lightweight excavation equipment may be required to reduce subgrade
pumping.
Use of lime, fly ash, kiln dust, cement or geotextiles could also be considered as a stabilization
technique. Laboratory evaluation is recommended to determine the effect of chemical
stabilization on subgrade soils prior to construction.
The individual contractor(s) is responsible for designing and constructing stable, temporary
excavations as required to maintain stability of both the excavation sides and bottom.
Excavations should be sloped or shored in the interest of safety following local, and federal
regulations, including current OSHA excavation and trench safety standards.
4.2.3 Subgrade Preparation
Exposed areas which will receive fill (if applicable), once properly cleared, should be scarified to
a minimum depth of 10 inches, conditioned to near optimum moisture content, and compacted.
Subgrade preparation and engineered fill placement below foundations and floor slabs should
be performed in accordance with Sections 4.3 and 4.5.
Areas of loose/soft soils may be encountered at foundation bearing depth after excavation is
completed for foundations. When such conditions exist beneath planned foundation areas, the
subgrade soils should be surficially compacted prior to placement of the foundation system. If
sufficient compaction cannot be achieved in-place, the loose/soft soils should be removed and
replaced as engineered fill. For placement of engineered fill below foundation, the excavation
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Responsive ■ Resourceful ■ Reliable 7
should be widened laterally, at least eight inches for each foot of fill placed below foundation
base elevations.
Subgrade soils beneath exterior slabs and pavements should be scarified, moisture conditioned
and compacted to a minimum depth of eight (8) inches. The moisture content and compaction
of subgrade soils should be maintained until slab construction.
4.2.4 Fill Materials and Placement
All fill materials should be inorganic soils free of vegetation, debris, and fragments larger than
six inches in size. Pea gravel or other similar non-cementitious, poorly-graded materials should
not be used as fill or backfill without the prior approval of the geotechnical engineer.
Clean on-site soils or approved imported materials may be used as fill material for the following:
general site grading exterior slab areas
foundation areas foundation backfill
interior floor slab areas
Sand soils should be used as backfill against below ground walls to reduce lateral earth
pressures and settlement.
Extra processing effort will likely be required for the clayey soils to produce a uniform
engineered fill material.
Imported soils for use as fill material within proposed structure areas should conform to low
volume change materials as indicated in the following specifications:
Percent Finer by Weight
Gradation (ASTM C 136)
6" ......................................................................................................... 100
3” .................................................................................................... 70-100
No. 4 Sieve ..................................................................................... 50-100
No. 200 Sieve .............................................................................. 50 (max)
Liquid Limit ....................................................................... 35 (max)
Plasticity Index ................................................................. 15 (max)
Maximum expansive potential (%)* ............................................ 1.0
*Measured on a sample compacted to approximately 95 percent of the ASTM D698
maximum dry density at about 3 percent below optimum water content. The sample is
confined under a 100 psf surcharge and submerged/inundated.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Engineered fill should be placed and compacted in horizontal lifts, using equipment and
procedures that will produce recommended moisture contents and densities throughout the lift.
Fill lifts should not exceed eight (8) inches loose thickness.
4.2.5 Compaction Requirements
Recommended compaction and moisture content criteria for engineered fill materials are as
follows:
Material Type and Location
Per the Modified Proctor Test (ASTM D 1557)
Minimum
Compaction
Requirement (%)
Range of Moisture Contents for
Compaction
Minimum Maximum
On-site granular or approved imported fill
soils:
Beneath foundations: 95 -3% +3%
Beneath slabs: 95 -3% +3%
Beneath pavements: 95 -3% +3%
Aggregate base 95 -3% +3%
Miscellaneous backfill 90 -3% +3%
4.2.6 Grading and Drainage
All grades must provide effective drainage away from the structures during and after
construction. Water permitted to pond next to the structures can result in greater soil
movements than those discussed in this report. These greater movements can result in
unacceptable differential floor slab movements, cracked slabs and walls, and roof leaks.
Estimated movements described in this report are based on effective drainage for the life of the
structure and cannot be relied upon if effective drainage is not maintained.
Exposed ground should be sloped at a minimum 5 percent away from the structures for at least
5 feet beyond the perimeter of the structures. In the area of the existing solids dewatering
facility, exposed ground should be sloped at a minimum 2 percent away from the structure for at
least 5 feet beyond the perimeter of the structure. After construction and landscaping (if
applicable), we recommend verifying final grades to document that effective drainage has been
achieved. Grades around the structures should also be periodically inspected and adjusted as
necessary, as part of the structure’s maintenance program.
Flatwork will be subject to post construction movement. Maximum grades practical should be
used for flatwork to prevent water from ponding. Allowances in final grades should also
consider post-construction movement of flatwork, particularly if such movement would be
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Responsive ■ Resourceful ■ Reliable 9
critical. Where flatwork abuts the structures, effectively seal and maintain joints to prevent
surface water infiltration.
4.2.7 Corrosion Potential
Results of soluble sulfate testing (36 to 110 mg/kg) indicate that ASTM Type I-II or II Portland
cement should be specified for all concrete on and below grade. Foundation concrete should
be designed for moderate sulfate exposure in accordance with the provisions of the ACI Design
Manual, Section 318, Chapter 4.
Laboratory test results indicate that on-site soils exhibit resistivity values of 1,460 and 2,050
ohm-centimeters and pH values of about 8.3 to 8.6 Criteria published by the Cast Iron Pipe
Research Institute indicates that the near surface subgrade soils generally have a low to
moderate corrosive potential to cause corrosion to buried ferrous materials. Review of data
published by the National Association of Corrosion Engineers indicates that the resistivity places
the soils in the mild to moderate corrosive category. If there is concern regarding pipe corrosion,
the use of PVC or poly-wrap should be considered. Refer to Summary of Laboratory Results
contained in Appendix B for the complete results of the corrosivity testing conducted on the site
soils in conjunction with this geotechnical exploration.
4.3 Foundation Recommendations
The proposed tanks may be supported on a concrete slab with perimeter thickened edges
bearing on undisturbed native soils. The equipment building may be supported on shallow
foundation systems consisting of spread/continuous footings or mat foundation bearing on
prepared subgrade or a zone of engineered fill. The design recommendations are discussed
below.
4.3.1 Footings or Mat Foundation Design Recommendations
DESCRIPTION VALUE
Foundation Type
Digester Tanks - Concrete slab with thickened edges
Equipment Building - Shallow spread and/or
continuous footings or mat
Bearing Material
Digester Tanks – Undisturbed native soils
Equipment Building – 12” of prepared subgrade or
engineered fill
Allowable Bearing Pressure Digester Tanks – 3,000 psf
Equipment Building – 2,500 psf
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
DESCRIPTION VALUE
Minimum Foundation Dimensions Columns: 18 inches
Walls: 12 inches
Minimum Embedment Depth Below
Finished Grade
Exterior: 36 inches
Interior: 12 inches
Total Estimated Settlement
Digester Tanks
Wall: 1 inch or less
Center: 1 to 1-½ inches
Equipment Building – 1 inch or less
Estimated Differential Settlement Digester Tanks – ½ to 1½ inches
Equipment Building – ½ to ¾ inch
Finished grade is defined as the lowest adjacent grade within five (5) feet of the foundation for
perimeter (or exterior) foundations and finished floor level for interior foundations. The
allowable foundation bearing pressures apply to dead loads plus design live load conditions.
The design bearing pressure may be increased by one-third when considering total loads that
include wind or seismic conditions. The weight of the foundation concrete below grade may be
neglected in dead load computations.
Foundations should be proportioned to reduce differential foundation movement. Proportioning
on the basis of equal total settlement is recommended; however, proportioning to relative
constant dead-load pressure will also reduce differential settlement between adjacent
foundations. Additional foundation movements could occur if water from any source infiltrates
the foundation soils; therefore, proper drainage should be provided in the final design and
during construction.
Footings, foundations, and masonry walls should be reinforced as necessary to reduce the
potential for distress caused by differential foundation movement. The use of joints at openings
or other discontinuities in masonry walls is recommended.
Foundation excavations and engineered fill placement operations (if applicable) should be
observed by a geotechnical engineer. If the soil conditions encountered differ significantly from
those presented in this report, supplemental recommendations will be required.
4.3.2 Footings or Mat Foundation Construction Considerations
The recommended depth of subgrade preparation or zone of engineered fill placed and
compacted below foundations should be in accordance with Section 4.3.1.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Responsive ■ Resourceful ■ Reliable 11
If unsuitable bearing soils are encountered in foundation excavations, the excavations should be
extended deeper to suitable soils and the foundations could bear directly on these soils at the
lower level or on lean concrete backfill placed in the excavations. The foundations could also
bear on properly compacted backfill extending down to the suitable soils. Overexcavation for
compacted backfill placement below foundations should extend laterally beyond all edges of the
foundations at least eight (8) inches per foot of overexcavation depth below foundation base
elevation. The overexcavation should then be backfilled up to the foundation base elevation
with well-graded granular material placed in lifts of 10 inches or less in loose thickness and
compacted to at least 95 percent of the material's maximum modified Proctor dry density (ASTM
D-1557). The overexcavation and backfill procedure is described in the figure below.
4.4 Seismic Considerations
DESCRIPTION VALUE
2012 International Building Code Site Classification (IBC) 1 C2
Site Latitude N 35.63080°
Site Longitude W 106.08842°
SMs Spectral Acceleration for a Short Period 0.567g
SM1 Spectral Acceleration for a 1-Second Period 0.234g
SDs Spectral Acceleration for a Short Period 0.378g
SD1 Spectral Acceleration for a 1-Second Period 0.156g
Fa Site Coefficient for a Short Period 1.200
Fv Site Coefficient for a 1-Second Period 1.659
1 Note: In general accordance with the 2012 International Building Code, Table 1613.5.2. IBC Site Class is based
on the average characteristics of the upper 100 feet of the subsurface profile.
2 Note: The 2012 International Building Code (IBC) requires a site soil profile determination extending to a depth of
100 feet for seismic site classification. The current scope does not include the required 100 foot soil profile
determination. Borings extended to a maximum depth of 70-½ feet, and this seismic site class definition considers
Side walls should be
sloped or braced for
stability as required by
OSHA.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
DESCRIPTION VALUE
that dense or denser soil continues below the maximum depth of the subsurface exploration. Additional exploration to
deeper depths would be required to confirm the conditions below the current depth of exploration.
4.5 Floor Slab
4.5.1 Design Recommendations
DESCRIPTION VALUE
Interior floor system Slab-on-grade concrete.
Floor slab support 12” of prepared subgrade or engineered fill
Subbase Subgrade
Modulus of subgrade reaction
150 pounds per square inch per inch (psi/in) (The modulus was
obtained based on our experience with similar subgrade
conditions, and estimates obtained from ACI design charts.)
Construction of floor slabs directly on prepared subgrade or a zone of engineered fill is
considered acceptable for the project. Some movement of a slab-on-grade floor system is
possible should the subgrade soils become elevated in moisture content due to the
compression potential of the near surface soils. Additional slab movements could occur if water
infiltrates the soils; therefore, proper drainage must be provided in the final design. To reduce
potential slab movements, the subgrade soils should be prepared as outlined in the earthwork
section of this report.
In areas of exposed concrete, control joints should be saw cut into the slab after concrete
placement in accordance with ACI Design Manual, Section 302.1R-37 8.3.12 (tooled control
joints are not recommended). Additionally, dowels should be placed at the location of proposed
construction joints. To control the width of cracking (should it occur) continuous slab
reinforcement should be considered in exposed concrete slabs.
Positive separations and/or isolation joints should be provided between slabs and all
foundations, columns or utility lines to allow independent movement. Interior trench backfill
placed beneath slabs should be compacted in accordance with recommendations outlined in the
Earthwork section of this report. Other design and construction considerations, as outlined in
the ACI Design Manual, Section 302.1R are recommended.
4.5.2 Construction Considerations
For the equipment building supported on footings, 12 inches of prepared subgrade or
engineered fill is recommended beneath the floor slab. Some differential movement of a slab-
on-grade floor system is possible should the subgrade soils become elevated in moisture
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Responsive ■ Resourceful ■ Reliable 13
content. Such movements are anticipated to be within general tolerance for normal slab-on-
grade construction. To reduce potential slab movements, the floor system should be supported
on a zone of engineered fill.
Any loose fill should be recompacted prior to construction. The engineered fill and subgrade
soils should be placed as outlined in the Earthwork section of this report. On-site soils are
suitable for use as engineered fill.
4.6 Lateral Earth Pressures
4.6.1 Design Recommendations
For soils above any free water surface, recommended equivalent fluid pressures for
unrestrained foundation elements when using on-site soils as backfill are:
ITEM SOIL TYPE VALUE
Active Case On-site sand soils
On-site clay soils
35 psf/ft
45 psf/ft
Passive Case On-site sand soils
On-site clay soils
400 psf/ft
300 psf/ft
At-Rest Case On-site sand soils
On-site clay soils
55 psf/ft
65 psf/ft
Coefficient of Base Friction On-site soils 0.351
1Note: The coefficient of base friction should be reduced to 0.30 when used in conjunction with passive pressure.
The lateral earth pressures herein do not include any factor of safety and are not applicable for
submerged soils/hydrostatic loading. Additional recommendations may be necessary if such
conditions are to be included in the design.
Fill against foundations (if applicable) should be compacted to densities specified in the
Earthwork section of this report. Compaction of each lift adjacent to walls should be
accomplished with hand-operated tampers or other lightweight compactors.
5.0 GENERAL COMMENTS
Terracon or a qualified geotechnical engineer should be retained to review the final design plans
and specifications so comments can be made regarding interpretation and implementation of
our geotechnical recommendations in the design and specifications. Terracon or a qualified
geotechnical engineer should also be retained to provide observation and testing services
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
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Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
during grading, excavation, foundation construction and other earth-related construction phases
of the project.
The analysis and recommendations presented in this report are based upon the data obtained
from the borings performed at the indicated locations and from other information discussed in
this report. This report does not reflect variations that may occur between borings, across the
site, or due to the modifying effects of construction or weather. The nature and extent of such
variations may not become evident until during or after construction. If variations appear, we
should be immediately notified so that further evaluation and supplemental recommendations
can be provided.
The scope of services for this project does not include either specifically or by implication any
environmental or biological (e.g., mold, fungi, bacteria) assessment of the site or identification or
prevention of pollutants, hazardous materials or conditions. If the owner is concerned about the
potential for such contamination or pollution, other studies should be undertaken.
This report has been prepared for the exclusive use of our client for specific application to the
project discussed and has been prepared in accordance with generally accepted geotechnical
engineering practices. No warranties, either express or implied, are intended or made. Site
safety, excavation support, and dewatering requirements are the responsibility of others. In the
event that changes in the nature, design, or location of the project as outlined in this report are
planned, the conclusions and recommendations contained in this report shall not be considered
valid unless Terracon reviews the changes and either verifies or modifies the conclusions of this
report in writing.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 29 of 58
APPENDIX A
FIELD EXPLORATION
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 30 of 58
Source: USGS 7.5-Minute Topographic Maps Editions “Agua Fria”, New Mexico, United States, dated 2013.
Project Mngr:
Anaerobic Digester Tanks and Building 73 Paseo Real
Santa Fe, New Mexico
SITE LOCATION MAP
MJD
Drawn By:
Checked By:
Approved By:
N/A
MEA
MEA
Project No. 66165052
Scale
File No.
Date:
As Shown
5/2016
4905 Hawkins, NE
Albuquerque, New Mexico 87109
505.797.4287 Fax: 505.797.4288
FIG No.
A1
APPROXIMATE SITE
LOCATION
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 31 of 58
BORING LOCATION PLAN
Anaerobic Digester Tanks and Building
73 Paseo Real
Santa Fe, New Mexico
A24905 Hawkins St. NE
Albuquerque, New Mexico 87109
Phone: 505.797.4287 Fax 505.797.4288
66165052
NTS
5/2016
MJD
MEA
MEAB-01 Boring Location
N
B-01
B-02
B-03
B-04B-05
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 32 of 58
Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Field Exploration Description
A total of five (5) test borings were drilled at the site on April 14 and 15, 2016. The borings were
drilled to depths of approximately 51-½ to 70-½ feet below the ground surface at the
approximate locations shown on the attached Site Location Map and Boring Location Plan. The
test borings were located as follows:
Borings Location Depths (feet)
B-01, B-02 and B-05 Anaerobic Digester Tanks 51-½ to 66
B-03 and B-04 Building 66-½ to 70-½
The test borings were advanced with a truck-mounted CME-75 drill rig utilizing 8-inch diameter
hollow-stem augers.
The borings were located in the field by using the proposed site plan of the site and measuring
from existing site features. Boring locations were adjusted due to existing underground utilities
and site access limitations. The latitude and longitude were determined at each boring location
using a hand held GPS unit. The accuracy of boring locations should only be assumed to the
level implied by the method used.
Lithologic logs of each boring were recorded by the field engineer during the drilling operations.
At selected intervals, samples of the subsurface materials were taken by driving split-spoon or
ring-barrel samplers.
Penetration resistance measurements were obtained by driving the split-spoon and ring-barrel
samplers into the subsurface materials with a 140-pound manual hammer falling 30 inches.
The penetration resistance value is a useful index in estimating the consistency or relative
density of materials encountered.
A CME automatic SPT hammer was used to advance the split-barrel sampler in the borings
performed on this site. The effect of the automatic hammer's efficiency has been considered in
the interpretation and analysis of the subsurface information for this report.
Groundwater conditions were evaluated in each boring at the time of site exploration. For safety
considerations, the borings were backfilled upon the completion of drilling.
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 33 of 58
33
38
9
9
12
19
22
8
27
10
19
9
9
113 35-18-17
38-25-13
5-5-5N=10
8-11-12N=23
5
4-7-11N=18
5-7-8N=15
30-32-44N=76
5-7-12N=19
11-19-32N=51
7-9-11N=20
18-23-29N=52
18-21-32N=53
18.0
24.0
38.0
43.0
51.5
CLAYEY SAND (SC), trace gravel, brown, loose to medium dense
SILTY SAND (SM), trace gravel, brown, medium dense
SILTY SAND WITH GRAVEL (SM), brown, medium dense to very dense
thin clay layer
SILTY SAND (SM), trace gravel, brown, medium dense
SILTY SAND WITH GRAVEL (SM), brown, very dense
Boring Terminated at 51.5 Feet
Hammer Type: AutomaticStratification lines are approximate. In-situ, the transition may be gradual.
GR
AP
HIC
LO
G
TH
IS B
OR
ING
LO
G IS
NO
T V
ALI
D IF
SE
PA
RA
TE
D F
RO
M O
RIG
INA
L R
EP
OR
T.
G
EO
SM
AR
T L
OG
-NO
WE
LL 6
616
505
2.G
PJ
TE
RR
AC
ON
2015
.GD
T
5/13
/16
SITE:
Page 1 of 1
Advancement Method:HSA
Abandonment Method:Backfilled with soil cuttings upon completion.
4905 Hawkins St NEAlbuquerque, NM
Notes:
Project No.: 66165052
Drill Rig: CME-75
Boring Started: 4/14/2016
BORING LOG NO. B-01HDR Engineering, Inc.CLIENT:Albuquerque, NM
Driller: EDI
Boring Completed: 4/14/2016
Exhibit: A-4
See Exhibit A-3 for description of fieldprocedures.See Appendix B for description of laboratoryprocedures and additional data (if any).
See Appendix C for explanation of symbols andabbreviations.
73 Paseo Real Santa Fe, NM
PROJECT: Anaerobic Digestor Tanks and Building
PE
RC
EN
T F
INE
S
WA
TE
RC
ON
TE
NT
(%
)
DR
Y U
NIT
WE
IGH
T (
pcf)
ATTERBERGLIMITS
LL-PL-PI
SA
MP
LE T
YP
E
WA
TE
R L
EV
EL
OB
SE
RV
AT
ION
S
DE
PT
H (
Ft.)
5
10
15
20
25
30
35
40
45
50
FIE
LD T
ES
TR
ES
ULT
S
DEPTH
LOCATION See Exhibit A-2
Latitude: 35.6309° Longitude: -106.08796°
41 feet While DrillingWATER LEVEL OBSERVATIONS
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 34 of 58
30
23
19
10
21
9
28
36
21
21
28
3
121 NP
NP
4-7-9N=163-4-3N=7
11
3-7-7N=14
12-20-18N=38
3-6-9N=15
5-8-13N=21
3-18-23N=41
5-9-10N=19
4-7-25N=32
18-44-22N=66
23.0
42.5
47.5
51.5
SILTY SAND WITH GRAVEL (SM), brown, loose to dense
SILTY SAND (SM), trace gravel, brown, medium dense to dense
SANDY LEAN CLAY (CL), trace gravel, brown, hard
SILTY SAND WITH GRAVEL (SM), brown, very dense
Boring Terminated at 51.5 Feet
Hammer Type: AutomaticStratification lines are approximate. In-situ, the transition may be gradual.
GR
AP
HIC
LO
G
TH
IS B
OR
ING
LO
G IS
NO
T V
ALI
D IF
SE
PA
RA
TE
D F
RO
M O
RIG
INA
L R
EP
OR
T.
G
EO
SM
AR
T L
OG
-NO
WE
LL 6
616
505
2.G
PJ
TE
RR
AC
ON
2015
.GD
T
5/13
/16
SITE:
Page 1 of 1
Advancement Method:HSA
Abandonment Method:Backfilled with soil cuttings upon completion.
4905 Hawkins St NEAlbuquerque, NM
Notes:
Project No.: 66165052
Drill Rig: CME-75
Boring Started: 4/14/2016
BORING LOG NO. B-02HDR Engineering, Inc.CLIENT:Albuquerque, NM
Driller: EDI
Boring Completed: 4/14/2016
Exhibit: A-5
See Exhibit A-3 for description of fieldprocedures.See Appendix B for description of laboratoryprocedures and additional data (if any).
See Appendix C for explanation of symbols andabbreviations.
73 Paseo Real Santa Fe, NM
PROJECT: Anaerobic Digestor Tanks and Building
PE
RC
EN
T F
INE
S
WA
TE
RC
ON
TE
NT
(%
)
DR
Y U
NIT
WE
IGH
T (
pcf)
ATTERBERGLIMITS
LL-PL-PI
SA
MP
LE T
YP
E
WA
TE
R L
EV
EL
OB
SE
RV
AT
ION
S
DE
PT
H (
Ft.)
5
10
15
20
25
30
35
40
45
50
FIE
LD T
ES
TR
ES
ULT
S
DEPTH
LOCATION See Exhibit A-2
Latitude: 35.63071° Longitude: -106.08792°
No free water observedWATER LEVEL OBSERVATIONS
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 35 of 58
55
13
7
6
9
27
9
24
11
34
14
15
43
27
42
11
102
38-26-12
NP
10-9-8N=172-3-4N=7
8-13-18N=31
3-5-8N=13
35
5-8-12N=20
20-24-24N=48
6-9-12N=21
13-9-21N=30
9-14-21N=35
37-43-50N=93
6-8-14N=22
10-12-20N=32
28-42-42N=84
4.0
7.5
13.0
17.5
27.5
32.5
47.5
52.5
62.5
66.5
SILTY SAND WITH GRAVEL (SM), brown, medium dense
SANDY LEAN CLAY (CL), trace gravel, brown, medium stiff
SILTY SAND WITH GRAVEL (SM), brown, dense
SANDY SILT (SM), trace gravel, brown, stiff
SILTY SAND (SM), trace gravel, brown, medium dense
POORLY GRADED SAND (SP), trace silt and gravel, brown, dense
SILTY SAND (SM), trace gravel, brown, medium dense to dense
SILTY SAND WITH GRAVEL (SM), brown, very dense
SILTY SAND (SM), trace gravel, brown, medium dense to dense
SILTY SAND WITH GRAVEL (SM), brown, very dense
Boring Terminated at 66.5 Feet
Hammer Type: AutomaticStratification lines are approximate. In-situ, the transition may be gradual.
GR
AP
HIC
LO
G
TH
IS B
OR
ING
LO
G IS
NO
T V
ALI
D IF
SE
PA
RA
TE
D F
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INA
L R
EP
OR
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SM
AR
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OG
-NO
WE
LL 6
616
505
2.G
PJ
TE
RR
AC
ON
2015
.GD
T
5/13
/16
SITE:
Page 1 of 1
Advancement Method:HSA
Abandonment Method:Backfilled with soil cuttings upon completion.
4905 Hawkins St NEAlbuquerque, NM
Notes:
Project No.: 66165052
Drill Rig: CME-75
Boring Started: 4/15/2016
BORING LOG NO. B-03HDR Engineering, Inc.CLIENT:Albuquerque, NM
Driller: EDI
Boring Completed: 4/15/2016
Exhibit: A-6
See Exhibit A-3 for description of fieldprocedures.See Appendix B for description of laboratoryprocedures and additional data (if any).
See Appendix C for explanation of symbols andabbreviations.
73 Paseo Real Santa Fe, NM
PROJECT: Anaerobic Digestor Tanks and Building
PE
RC
EN
T F
INE
S
WA
TE
RC
ON
TE
NT
(%
)
DR
Y U
NIT
WE
IGH
T (
pcf)
ATTERBERGLIMITS
LL-PL-PI
SA
MP
LE T
YP
E
WA
TE
R L
EV
EL
OB
SE
RV
AT
ION
S
DE
PT
H (
Ft.)
5
10
15
20
25
30
35
40
45
50
55
60
65
FIE
LD T
ES
TR
ES
ULT
S
DEPTH
LOCATION See Exhibit A-2
Latitude: 35.63056° Longitude: -106.08793°
56 feet While DrillingWATER LEVEL OBSERVATIONS
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 36 of 58
20
46
12
5
9
27
16
26
31
24
20
21
5
34
36
30
21
115
NP
NP
3-4-3N=72-3-7N=10
8-15-20N=35
3-4-7N=11
53
5-6-11N=17
6-8-17N=25
5-14-16N=30
5-9-11N=20
8-9-10N=19
23-30-41N=71
10-22-14N=36
8-14-17N=31
19-50/3"
19-50/2"
6.5
12.0
18.0
42.5
47.5
52.5
70.5
WELL GRADED SAND WITH SILT (SW-SM), trace gravel, brown, loose
SILTY SAND (SM), trace gravel, brown, dense
CLAYEY SAND (SC), trace gravel, brown, medium dense
SILTY SAND (SM), trace gravel, brown, medium dense to dense
SANDY LEAN CLAY (CL), trace gravel, brown, very stiff
WELL GRADED SAND (SW), trace silt and gravel, brown, very dense
SILTY SAND (SM), trace gravel, brown, dense to very dense
Boring Terminated at 70.5 Feet
Hammer Type: AutomaticStratification lines are approximate. In-situ, the transition may be gradual.
GR
AP
HIC
LO
G
TH
IS B
OR
ING
LO
G IS
NO
T V
ALI
D IF
SE
PA
RA
TE
D F
RO
M O
RIG
INA
L R
EP
OR
T.
G
EO
SM
AR
T L
OG
-NO
WE
LL 6
616
505
2.G
PJ
TE
RR
AC
ON
2015
.GD
T
5/13
/16
SITE:
Page 1 of 1
Advancement Method:HSA
Abandonment Method:Backfilled with soil cuttings upon completion.
4905 Hawkins St NEAlbuquerque, NM
Notes:
Project No.: 66165052
Drill Rig: CME-75
Boring Started: 4/14/2016
BORING LOG NO. B-04HDR Engineering, Inc.CLIENT:Albuquerque, NM
Driller: EDI
Boring Completed: 4/14/2016
Exhibit: A-7
See Exhibit A-3 for description of fieldprocedures.See Appendix B for description of laboratoryprocedures and additional data (if any).
See Appendix C for explanation of symbols andabbreviations.
73 Paseo Real Santa Fe, NM
PROJECT: Anaerobic Digestor Tanks and Building
PE
RC
EN
T F
INE
S
WA
TE
RC
ON
TE
NT
(%
)
DR
Y U
NIT
WE
IGH
T (
pcf)
ATTERBERGLIMITS
LL-PL-PI
SA
MP
LE T
YP
E
WA
TE
R L
EV
EL
OB
SE
RV
AT
ION
S
DE
PT
H (
Ft.)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
FIE
LD T
ES
TR
ES
ULT
S
DEPTH
LOCATION See Exhibit A-2
Latitude: 35.63063° Longitude: -106.08804°
63 feet While DrillingWATER LEVEL OBSERVATIONS
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 37 of 58
54
10
9
3
26
9
30
13
56
4
20
3
9
42
22
13
122
39-22-17
NP
4-6-12N=18
19-18-16N=34
4-6-12N=18
68
4-7-10N=17
17-23-20N=43
6-10-15N=25
13-17-18N=35
6-10-12N=22
27-27-50N=77
19-19-15N=34
11-16-19N=35
7-10-50N=60
15-50/5"
7.5
12.5
22.5
27.5
32.5
37.5
42.5
47.5
57.5
66.0
SILTY SAND WITH GRAVEL (SM), brown, medium dense to dense
SANDY LEAN CLAY (CL), trace gravel, brown, very stiff
SILTY SAND (SM), trace gravel, brown, medium dense to dense
POORLY GRADED SAND (SP), trace silt and gravel, brown, dense
SILTY SAND (SM), trace gravel, brown, medium dense
POORLY GRADED SAND WITH SILT (SP-SM), trace gravel, brown,dense
SILTY SAND (SM), trace gravel, brown, medium dense
SILTY SAND WITH GRAVEL (SM), brown, very dense
SILTY SAND (SM), trace gravel, brown, dense
SILTY SAND WITH GRAVEL (SM), brown, very dense
Boring Terminated at 66 Feet
Hammer Type: AutomaticStratification lines are approximate. In-situ, the transition may be gradual.
GR
AP
HIC
LO
G
TH
IS B
OR
ING
LO
G IS
NO
T V
ALI
D IF
SE
PA
RA
TE
D F
RO
M O
RIG
INA
L R
EP
OR
T.
G
EO
SM
AR
T L
OG
-NO
WE
LL 6
616
505
2.G
PJ
TE
RR
AC
ON
2015
.GD
T
5/13
/16
SITE:
Page 1 of 1
Advancement Method:HSA
Abandonment Method:Backfilled with soil cuttings upon completion.
4905 Hawkins St NEAlbuquerque, NM
Notes:
Project No.: 66165052
Drill Rig: CME-75
Boring Started: 4/15/2016
BORING LOG NO. B-05HDR Engineering, Inc.CLIENT:Albuquerque, NM
Driller: EDI
Boring Completed: 4/15/2016
Exhibit: A-8
See Exhibit A-3 for description of fieldprocedures.See Appendix B for description of laboratoryprocedures and additional data (if any).
See Appendix C for explanation of symbols andabbreviations.
73 Paseo Real Santa Fe, NM
PROJECT: Anaerobic Digestor Tanks and Building
PE
RC
EN
T F
INE
S
WA
TE
RC
ON
TE
NT
(%
)
DR
Y U
NIT
WE
IGH
T (
pcf)
ATTERBERGLIMITS
LL-PL-PI
SA
MP
LE T
YP
E
WA
TE
R L
EV
EL
OB
SE
RV
AT
ION
S
DE
PT
H (
Ft.)
5
10
15
20
25
30
35
40
45
50
55
60
65
FIE
LD T
ES
TR
ES
ULT
S
DEPTH
LOCATION See Exhibit A-2
Latitude: 35.63066° Longitude: -106.0882°
53.5 feet While DrillingWATER LEVEL OBSERVATIONS
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 38 of 58
TraceWithModifier
Water Level Aftera Specified Period of Time
GRAIN SIZE TERMINOLOGYRELATIVE PROPORTIONS OF SAND AND GRAVEL
TraceWithModifier
Standard Penetration orN-Value
Blows/Ft.
Descriptive Term(Consistency)
Loose
Very Stiff
Standard Penetration orN-Value
Blows/Ft.
Ring SamplerBlows/Ft.
Ring SamplerBlows/Ft.
Medium Dense
Dense
Very Dense
0 - 1 < 3
4 - 9 2 - 4 3 - 4
Medium-Stiff 5 - 9
30 - 50
WA
TE
R L
EV
EL
Auger Shelby Tube Split Spoon
RockCore
8 - 15
PLASTICITY DESCRIPTION
Term
< 1515 - 29> 30
Descriptive Term(s)of other constituents
Water InitiallyEncountered
Water Level After aSpecified Period of Time
Major Componentof Sample
Percent ofDry Weight
(More than 50% retained on No. 200 sieve.)Density determined by Standard Penetration Resistance
Includes gravels, sands and silts.
Hard
Very Loose 0 - 3 0 - 6 Very Soft
7 - 18 Soft
10 - 29 19 - 58
59 - 98 Stiff
less than 500
500 to 1,000
1,000 to 2,000
MacroCore
2,000 to 4,000
4,000 to 8,000> 99
LOCATION AND ELEVATION NOTES
SA
MP
LIN
G
FIE
LD
TE
ST
S
DESCRIPTION OF SYMBOLS AND ABBREVIATIONS
Descriptive Term(Density)
Non-plasticLowMediumHigh
BouldersCobblesGravelSandSilt or Clay
10 - 18
> 50 15 - 30 19 - 42
> 30 > 42
_
CONSISTENCY OF FINE-GRAINED SOILS
Hand Penetrometer
Torvane
Standard PenetrationTest (blows per foot)
N value
Photo-Ionization Detector
Organic Vapor Analyzer
(HP)
(T)
(b/f)
N
(PID)
(OVA)
(50% or more passing the No. 200 sieve.)Consistency determined by laboratory shear strength testing, field
visual-manual procedures or standard penetration resistance
DESCRIPTIVE SOIL CLASSIFICATION
> 8,000
Unless otherwise noted, Latitude and Longitude are approximately determined using a hand-held GPS device. The accuracyof such devices is variable. Surface elevation data annotated with +/- indicates that no actual topographical survey wasconducted to confirm the surface elevation. Instead, the surface elevation was approximately determined from topographicmaps of the area.
Soil classification is based on the Unified Soil Classification System. Coarse Grained Soils have more than 50% of their dryweight retained on a #200 sieve; their principal descriptors are: boulders, cobbles, gravel or sand. Fine Grained Soils haveless than 50% of their dry weight retained on a #200 sieve; they are principally described as clays if they are plastic, andsilts if they are slightly plastic or non-plastic. Major constituents may be added as modifiers and minor constituents may beadded according to the relative proportions based on grain size. In addition to gradation, coarse-grained soils are definedon the basis of their in-place relative density and fine-grained soils on the basis of their consistency.
Plasticity Index
01 - 1011 - 30
> 30
RELATIVE PROPORTIONS OF FINES
Descriptive Term(s)of other constituents
Percent ofDry Weight
< 55 - 12> 12
RELATIVE DENSITY OF COARSE-GRAINED SOILS
Particle Size
Over 12 in. (300 mm)12 in. to 3 in. (300mm to 75mm)3 in. to #4 sieve (75mm to 4.75 mm)#4 to #200 sieve (4.75mm to 0.075mmPassing #200 sieve (0.075mm)
ST
RE
NG
TH
TE
RM
S Unconfined CompressiveStrength, Qu, psf
4 - 8
GENERAL NOTES
ModifiedCalifornia
Ring Sampler
GrabSample
ModifiedDames & MooreRing Sampler
NoRecovery
Water levels indicated on the soil boringlogs are the levels measured in theborehole at the times indicated.Groundwater level variations will occurover time. In low permeability soils,accurate determination of groundwaterlevels is not possible with short termwater level observations.
Exhibit A-9City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 39 of 58
UNIFIED SOIL CLASSIFICATION SYSTEM
Criteria for Assigning Group Symbols and Group Names Using Laboratory Tests A
Soil Classification
Group
Symbol Group Name
B
Coarse Grained Soils:
More than 50% retained on No. 200 sieve
Gravels:
More than 50% of coarse fraction retained on No. 4 sieve
Clean Gravels:
Less than 5% fines C Cu 4 and 1 Cc 3 E GW Well-graded gravel F Cu 4 and/or 1 Cc 3 E GP Poorly graded gravel F
Gravels with Fines:
More than 12% fines C Fines classify as ML or MH GM Silty gravel F,G,H Fines classify as CL or CH GC Clayey gravel F,G,H
Sands:
50% or more of coarse fraction passes No. 4 sieve
Clean Sands:
Less than 5% fines D Cu 6 and 1 Cc 3 E SW Well-graded sand I Cu 6 and/or 1 Cc 3 E SP Poorly graded sand I
Sands with Fines:
More than 12% fines D Fines classify as ML or MH SM Silty sand G,H,I Fines classify as CL or CH SC Clayey sand G,H,I
Fine-Grained Soils:
50% or more passes the No. 200 sieve
Silts and Clays:
Liquid limit less than 50
Inorganic: PI 7 and plots on or above “A” line J CL Lean clay K,L,M PI 4 or plots below “A” line J ML Silt K,L,M
Organic: Liquid limit - oven dried
0.75 OL Organic clay K,L,M,N
Liquid limit - not dried Organic silt K,L,M,O
Silts and Clays:
Liquid limit 50 or more
Inorganic: PI plots on or above “A” line CH Fat clay K,L,M PI plots below “A” line MH Elastic Silt K,L,M
Organic: Liquid limit - oven dried
0.75 OH Organic clay K,L,M,P
Liquid limit - not dried Organic silt K,L,M,Q Highly organic soils: Primarily organic matter, dark in color, and organic odor PT Peat
A Based on the material passing the 3-inch (75-mm) sieve B If field sample contained cobbles or boulders, or both, add “with cobbles
or boulders, or both” to group name. C Gravels with 5 to 12% fines require dual symbols: GW-GM well-graded
gravel with silt, GW-GC well-graded gravel with clay, GP-GM poorly graded gravel with silt, GP-GC poorly graded gravel with clay.
D Sands with 5 to 12% fines require dual symbols: SW-SM well-graded sand with silt, SW-SC well-graded sand with clay, SP-SM poorly graded sand with silt, SP-SC poorly graded sand with clay
E Cu = D60/D10 Cc = 6010
2
30
DxD
)(D
F If soil contains 15% sand, add “with sand” to group name. G If fines classify as CL-ML, use dual symbol GC-GM, or SC-SM.
H If fines are organic, add “with organic fines” to group name. I If soil contains 15% gravel, add “with gravel” to group name. J If Atterberg limits plot in shaded area, soil is a CL-ML, silty clay. K If soil contains 15 to 29% plus No. 200, add “with sand” or “with gravel,”
whichever is predominant. L If soil contains 30% plus No. 200 predominantly sand, add “sandy” to
group name. M If soil contains 30% plus No. 200, predominantly gravel, add
“gravelly” to group name. N PI 4 and plots on or above “A” line. O PI 4 or plots below “A” line. P PI plots on or above “A” line. Q PI plots below “A” line.
Exhibit A-10City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 40 of 58
APPENDIX B
LABORATORY TESTING
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 41 of 58
Geotechnical Engineering Report City of Santa Fe Anaerobic Digester Tanks and Building ■ Santa Fe, New Mexico May 19, 2016 ■ Terracon Project No. 66165052
Responsive ■ Resourceful ■ Reliable
Laboratory Testing
Samples retrieved during the field exploration were taken to the laboratory for further
observation by the project geotechnical engineer and were classified in accordance with the
Unified Soil Classification System (USCS) described in Appendix A. At that time, the field
descriptions were confirmed or modified as necessary and an applicable laboratory testing
program was formulated to determine engineering properties of the subsurface materials.
Laboratory tests were conducted on selected soil samples and the test results are presented in
this appendix. The laboratory test results were used for the geotechnical engineering analyses,
and the development of foundation and earthwork recommendations. Laboratory tests were
performed in general accordance with the applicable ASTM, local or other accepted standards.
Selected soil samples obtained from the site were tested for the following engineering
properties:
Consolidation/Compression In-situ Dry Density
Sieve Analysis Resistivity
Atterberg Limits
pH
Soluble Sulfates
In-situ Water Content
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 42 of 58
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
0.0010.010.1110100
B-01
B-01
B-02
B-02
B-03
35
38
12
NP
38
0.078
0.135
0.445
0.263
1.783
0.396
0.1
9.5
9.5
9.5
9.5
4.75
6 16 20 30 40 501.5 2006 810
5.5
4.7
6.7
1.2
0.0
14
33.0
38.1
29.6
22.5
54.5
%Fines
LL PL PI
41 3/4 1/2 60
fine
B-01
B-01
B-02
B-02
B-03
GRAIN SIZE IN MILLIMETERS
PE
RC
EN
T F
INE
R B
Y W
EIG
HT
coarse fine
HYDROMETERU.S. SIEVE OPENING IN INCHES U.S. SIEVE NUMBERS
18
25
15
NP
26
17
13
NP
NP
12
D100
Cc Cu
SILT OR CLAY
4
%Sand%GravelD30 D10
10 - 11
20 - 21.5
10 - 11
30 - 31.5
15 - 16.5
3/8 3 100 1403 2
COBBLESGRAVEL SAND
USCS Classification
55.1
52.3
39.7
75.7
45.1
D60
coarse medium
Boring ID Depth
Boring ID Depth
GRAIN SIZE DISTRIBUTION
10 - 11
20 - 21.5
10 - 11
30 - 31.5
15 - 16.5
CLAYEY SAND (SC)
SILTY SAND (SM)
SILTY SAND with GRAVEL (SM)
SILTY SAND (SM)
SANDY SILT (ML)
ASTM D422 / ASTM C136
4905 Hawkins St NEAlbuquerque, NM
PROJECT NUMBER: 66165052PROJECT: Anaerobic Digestor Tanks and
Building
SITE: 73 Paseo Real Santa Fe, NM
CLIENT: HDR Engineering, Inc. Albuquerque, NM
EXHIBIT: B-2
LAB
OR
AT
OR
Y T
ES
TS
AR
E N
OT
VA
LID
IF S
EP
AR
AT
ED
FR
OM
OR
IGIN
AL
RE
PO
RT
.
GR
AIN
SIZ
E: U
SC
S-2
661
650
52.G
PJ
351
5909
7 -
AT
TE
RB
ER
G IS
SU
E.G
PJ
5/1
3/16
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 43 of 58
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
0.0010.010.1110100
B-03
B-04
B-04
B-05
B-05
NP
NP
NP
39
NP
0.313
0.174
0.236
1.568
0.83
0.114
0.109
0.732
9.5
9.5
4.75
9.5
12.5
6 16 20 30 40 501.5 2006 810
9.0
4.6
0.0
1.5
6.90.078
14
12.9
19.5
46.4
53.7
9.6
%Fines
LL PL PI
41 3/4 1/2 60
fine
B-03
B-04
B-04
B-05
B-05
9.44
GRAIN SIZE IN MILLIMETERS
PE
RC
EN
T F
INE
R B
Y W
EIG
HT
coarse fine
HYDROMETERU.S. SIEVE OPENING IN INCHES U.S. SIEVE NUMBERS
NP
NP
NP
22
NP
NP
NP
NP
17
NP 0.98
D100
Cc Cu
SILT OR CLAY
4
%Sand%GravelD30 D10
50 - 51.5
10 - 11.5
40 - 41.5
10 - 11.5
35 - 36.5
3/8 3 100 1403 2
COBBLESGRAVEL SAND
USCS Classification
62.4
71.6
53.6
44.8
83.5
D60
coarse medium
Boring ID Depth
Boring ID Depth
GRAIN SIZE DISTRIBUTION
50 - 51.5
10 - 11.5
40 - 41.5
10 - 11.5
35 - 36.5
SILTY SAND with GRAVEL (SM)
SILTY SAND (SM)
SILTY SAND (SM)
SANDY LEAN CLAY (CL)
POORLY GRADED SAND with SILT (SP-SM)
ASTM D422 / ASTM C136
4905 Hawkins St NEAlbuquerque, NM
PROJECT NUMBER: 66165052PROJECT: Anaerobic Digestor Tanks and
Building
SITE: 73 Paseo Real Santa Fe, NM
CLIENT: HDR Engineering, Inc. Albuquerque, NM
EXHIBIT: B-3
LAB
OR
AT
OR
Y T
ES
TS
AR
E N
OT
VA
LID
IF S
EP
AR
AT
ED
FR
OM
OR
IGIN
AL
RE
PO
RT
.
GR
AIN
SIZ
E: U
SC
S-2
661
650
52.G
PJ
351
5909
7 -
AT
TE
RB
ER
G IS
SU
E.G
PJ
5/1
3/16
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 44 of 58
-6.0
-5.5
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
10 100 1,000 10,000
AX
IAL
ST
RA
IN,
%
PRESSURE, psf
NOTES:
SWELL CONSOLIDATION TESTASTM D2435
Specimen Identification Classification , pcf
113B-01 12
WC, %
CLAYEY SAND(SC)10.0 - 11.0 ft
4905 Hawkins St NEAlbuquerque, NM
PROJECT NUMBER: 66165052PROJECT: Anaerobic Digestor Tanks and
Building
SITE: 73 Paseo Real Santa Fe, NM
CLIENT: HDR Engineering, Inc. Albuquerque, NM
EXHIBIT: B-4
LAB
OR
AT
OR
Y T
ES
TS
AR
E N
OT
VA
LID
IF S
EP
AR
AT
ED
FR
OM
OR
IGIN
AL
RE
PO
RT
.
TC
_CO
NS
OL_
ST
RA
IN-U
SC
S 6
616
5052
.GP
J T
ER
RA
CO
N20
15.G
DT
5/1
3/1
6
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 45 of 58
-6.0
-5.5
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
10 100 1,000 10,000
AX
IAL
ST
RA
IN,
%
PRESSURE, psf
NOTES:
SWELL CONSOLIDATION TESTASTM D2435
Specimen Identification Classification , pcf
121B-02 10
WC, %
SILTY SAND with GRAVEL(SM)10.0 - 11.0 ft
4905 Hawkins St NEAlbuquerque, NM
PROJECT NUMBER: 66165052PROJECT: Anaerobic Digestor Tanks and
Building
SITE: 73 Paseo Real Santa Fe, NM
CLIENT: HDR Engineering, Inc. Albuquerque, NM
EXHIBIT: B-5
LAB
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6
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 46 of 58
B-01 2.5 - 4 8.5
B-01 5 - 6.5 9.4
B-01 10 - 11 CLAYEY SAND(SC) 35 18 17 33.0 5.5 55.1 11.6 112.8
B-01 15 - 16.5 18.8
B-01 20 - 21.5 SILTY SAND(SM) 38 25 13 38.1 4.7 52.3 22.3
B-01 25 - 26.5 7.6
B-01 30 - 31.5 26.7
B-01 35 - 36.5 10.2
B-01 40 - 41.5 19.2
B-01 45 - 46.5 9.3
B-01 50 - 51.5 8.8
B-02 2.5 - 4 19.1
B-02 5 - 6.5
B-02 10 - 11 SILTY SAND with GRAVEL(SM) 12 15 NP 29.6 6.7 39.7 10.1 121.5
B-02 15 - 16.5 20.5
B-02 20 - 21.5 8.8
B-02 25 - 26.5 27.8
B-02 30 - 31.5 SILTY SAND(SM) NP NP NP 22.5 1.2 75.7 36.3
B-02 35 - 36.5 20.5
B-02 40 - 41.5 21.1
B-02 45 - 46.5 28.4
B-02 50 - 51.5 3.2
B-03 2.5 - 4 6.7
B-03 5 - 6.5 6.3
B-03 10 - 11.5 9.0
B-03 15 - 16.5 SANDY SILT(ML) 38 26 12 54.5 0.0 45.1 27.3
B-03 20 - 21 9.2 101.8
B-03 25 - 26.5 24.5
B-03 30 - 31.5 10.5
B-03 35 - 36.5 34.3
B-03 40 - 41.5 14.2
B-03 45 - 46.5 14.7
B-03 50 - 51.5 SILTY SAND with GRAVEL(SM) NP NP NP 12.9 9.0 62.4 43.1
B-03 55 - 56.5 27.4
B-03 60 - 61.5 41.6
B-03 65 - 66.5 10.7
B-04 2.5 - 4 11.7
B-04 5 - 6.5 4.7
B-04 10 - 11.5 SILTY SAND(SM) NP NP NP 19.5 4.6 71.6 9.2
B-04 15 - 16.5 27.2
B-04 20 - 21 16.1 115.3
B-04 25 - 26.5 26.3
Depth USCS Classificationand Soil Description
CompressiveStrength
(psf)
%<#200Sieve
DryDensity
(pcf)
WaterContent
(%)
BORINGID
LiquidLimit
PlasticLimit
PlasticityIndex
%Gravel
%Sand
%Silt
%Clay
Sheet 1 of 2
Summary of Laboratory Results
4905 Hawkins St NEAlbuquerque, NM
PROJECT NUMBER: 66165052PROJECT: Anaerobic Digestor Tanks and
Building
SITE: 73 Paseo Real Santa Fe, NM
CLIENT: HDR Engineering, Inc. Albuquerque, NM
EXHIBIT: B-6
LAB
OR
AT
OR
Y T
ES
TS
AR
E N
OT
VA
LID
IF S
EP
AR
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ED
FR
OM
OR
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OLD
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MA
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: US
CS
-NO
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NM
EN
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6616
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PJ
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2012
.GD
T 5
/13/
16
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 47 of 58
B-04 30 - 31.5 30.6
B-04 35 - 36.5 24.3
B-04 40 - 41.5 SILTY SAND(SM) NP NP NP 46.4 0.0 53.6 20.1
B-04 45 - 46.5 20.7
B-04 50 - 51.5 4.5
B-04 55 - 56.5 34.4
B-04 60 - 61.5 35.7
B-04 65 - 65.75 29.8
B-04 70 - 70.67 21.3
B-05 2.5 - 4 9.0
B-05 5 - 6.5 3.2
B-05 10 - 11.5 SANDY LEAN CLAY(CL) 39 22 17 53.7 1.5 44.8 25.7
B-05 15 - 16 9.2 122.1
B-05 20 - 21.5 29.8
B-05 25 - 26.5 12.9
B-05 30 - 31.5 56.0
B-05 35 - 36.5 POORLY GRADED SAND with
SILT(SP-SM)
NP NP NP 9.6 6.9 83.5 4.4
B-05 40 - 41.5 19.9
B-05 45 - 46.5 2.7
B-05 50 - 51.5 9.2
B-05 55 - 56.5 41.6
B-05 60 - 61.5 22.0
B-05 65 - 65.92 13.2
Depth USCS Classificationand Soil Description
CompressiveStrength
(psf)
%<#200Sieve
DryDensity
(pcf)
WaterContent
(%)
BORINGID
LiquidLimit
PlasticLimit
PlasticityIndex
%Gravel
%Sand
%Silt
%Clay
Sheet 2 of 2
Summary of Laboratory Results
4905 Hawkins St NEAlbuquerque, NM
PROJECT NUMBER: 66165052PROJECT: Anaerobic Digestor Tanks and
Building
SITE: 73 Paseo Real Santa Fe, NM
CLIENT: HDR Engineering, Inc. Albuquerque, NM
EXHIBIT: B-7
LAB
OR
AT
OR
Y T
ES
TS
AR
E N
OT
VA
LID
IF S
EP
AR
AT
ED
FR
OM
OR
IGIN
AL
RE
PO
RT
.
OLD
-LA
B S
UM
MA
RY
: US
CS
-NO
AS
SIG
NM
EN
T
6616
505
2.G
PJ
TE
RR
AC
ON
2012
.GD
T 5
/13/
16
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 48 of 58
May 02, 2016
TerraconMichael Anderson
Dear Michael Anderson:
RE: Anaerobic Digester Tanks OrderNo.: 1604991
FAXTEL: (505) 797-4287
4905 Hawkins, NEAlbuquerque, NM 87109
Hall Environmental Analysis Laboratory4901 Hawkins NE
Albuquerque, NM 87109
Website: www.hallenvironmental.comTEL: 505-345-3975 FAX: 505-345-4107
Hall Environmental Analysis Laboratory received 2 sample(s) on 4/20/2016 for the analyses presented in the following report.
Andy Freeman
These were analyzed according to EPA procedures or equivalent. To access our accredited tests please go to www.hallenvironmental.com or the state specific web sites. In order to properly interpret your results it is imperative that you review this report in its entirety. See the sample checklist and/or the Chain of Custody for information regarding the sample receipt temperature and preservation. Data qualifiers or a narrative will be provided if the sample analysis or analytical quality control parameters require a flag. When necessary, data qualifers are provided on both the sample analysis report and the QC summary report, both sections should be reviewed. All samples are reported, as received, unless otherwise indicated. Lab measurement of analytes considered field parameters that require analysis within 15 minutes of sampling such as pH and residual chlorine are qualified as being analyzed outside of the recommended holding time.
Please don't hesitate to contact HEAL for any additional information or clarifications.
ADHS Cert #AZ0682 -- NMED-DWB Cert #NM9425 -- NMED-Micro Cert #NM0190
Sincerely,
Laboratory Manager4901 Hawkins NEAlbuquerque, NM 87109
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 49 of 58
Project: Anaerobic Digester TanksClient Sample ID: B1@5'
Collection Date: 4/14/2016Matrix: SOIL
CLIENT: Terracon
Lab ID: 1604991-001
Date Reported: 5/2/2016
Analytical ReportLab Order 1604991
Analyses Result Qual Units Date AnalyzedDFPQL
Hall Environmental Analysis Laboratory, Inc.
Received Date: 4/20/2016 4:43:00 PM
Batch
EPA METHOD 300.0: ANIONS Analyst: LGT
Sulfate 4/25/2016 7:29:41 PM1.5 mg/Kg 1110 24978
RESISTIVITY AND EC SOIL Analyst: JRR
Resistivity 4/26/2016 10:39:00 AM1.00 Ohms * cm 11460 24987
SM4500-H+B: PH Analyst: JRR
pH 4/25/2016 4:26:00 PM1.68 pH Units 18.62 R33776
Qualifiers:
Page 1 of 4
Refer to the QC Summary report and sample login checklist for flagged QC data and preservation information.
* Value exceeds Maximum Contaminant Level. B Analyte detected in the associated Method BlankD Sample Diluted Due to Matrix E Value above quantitation rangeH Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits
ND Not Detected at the Reporting Limit P Sample pH Not In RangeR RPD outside accepted recovery limits RL Reporting Detection LimitS % Recovery outside of range due to dilution or matrix W Sample container temperature is out of limit as specified
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 50 of 58
Project: Anaerobic Digester TanksClient Sample ID: B3@15'
Collection Date: 4/14/2016Matrix: SOIL
CLIENT: Terracon
Lab ID: 1604991-002
Date Reported: 5/2/2016
Analytical ReportLab Order 1604991
Analyses Result Qual Units Date AnalyzedDFPQL
Hall Environmental Analysis Laboratory, Inc.
Received Date: 4/20/2016 4:43:00 PM
Batch
EPA METHOD 300.0: ANIONS Analyst: LGT
Sulfate 4/25/2016 7:54:31 PM1.5 mg/Kg 136 24978
RESISTIVITY AND EC SOIL Analyst: JRR
Resistivity 4/26/2016 10:39:00 AM1.00 Ohms * cm 12050 24987
SM4500-H+B: PH Analyst: JRR
pH 4/25/2016 4:26:00 PM1.68 pH Units 18.32 R33776
Qualifiers:
Page 2 of 4
Refer to the QC Summary report and sample login checklist for flagged QC data and preservation information.
* Value exceeds Maximum Contaminant Level. B Analyte detected in the associated Method BlankD Sample Diluted Due to Matrix E Value above quantitation rangeH Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits
ND Not Detected at the Reporting Limit P Sample pH Not In RangeR RPD outside accepted recovery limits RL Reporting Detection LimitS % Recovery outside of range due to dilution or matrix W Sample container temperature is out of limit as specified
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 51 of 58
Project: Anaerobic Digester TanksClient: Terracon
02-May-16
QC SUMMARY REPORT 1604991WO#:Hall Environmental Analysis Laboratory, Inc.
Sample ID MB-24978
Batch ID: 24978
Analysis Date: 4/25/2016Prep Date: 4/25/2016
Analyte Result SPK value SPK Ref Val %REC %RPDLowLimit HighLimit RPDLimit Qual
Units: mg/Kg
PQL
Client ID: PBS RunNo: 33759
SeqNo: 1039760
mblkSampType: TestCode: EPA Method 300.0: Anions
Sulfate 1.5ND
Sample ID LCS-24978
Batch ID: 24978
Analysis Date: 4/25/2016Prep Date: 4/25/2016
Analyte Result SPK value SPK Ref Val %REC %RPDLowLimit HighLimit RPDLimit Qual
Units: mg/Kg
PQL
Client ID: LCSS RunNo: 33759
SeqNo: 1039761
lcsSampType: TestCode: EPA Method 300.0: Anions
Sulfate 30.00 93.9 90 1101.5 028
Qualifiers:
Page 3 of 4
* Value exceeds Maximum Contaminant Level. B Analyte detected in the associated Method BlankD Sample Diluted Due to Matrix E Value above quantitation rangeH Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits
ND Not Detected at the Reporting Limit P Sample pH Not In RangeR RPD outside accepted recovery limits RL Reporting Detection LimitS % Recovery outside of range due to dilution or matrix W Sample container temperature is out of limit as specified
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 52 of 58
Project: Anaerobic Digester TanksClient: Terracon
02-May-16
QC SUMMARY REPORT 1604991WO#:Hall Environmental Analysis Laboratory, Inc.
Sample ID 1604991-002ADUP
Batch ID: 24987
Analysis Date: 4/26/2016Prep Date: 4/25/2016
Analyte Result SPK value SPK Ref Val %REC %RPDLowLimit HighLimit RPDLimit Qual
Units: Ohms * cm
PQL
Client ID: B3@15' RunNo: 33784
SeqNo: 1040631
DUPSampType: TestCode: Resistivity and eC Soil
Resistivity 201.00 5.481940
Qualifiers:
Page 4 of 4
* Value exceeds Maximum Contaminant Level. B Analyte detected in the associated Method BlankD Sample Diluted Due to Matrix E Value above quantitation rangeH Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits
ND Not Detected at the Reporting Limit P Sample pH Not In RangeR RPD outside accepted recovery limits RL Reporting Detection LimitS % Recovery outside of range due to dilution or matrix W Sample container temperature is out of limit as specified
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 53 of 58
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
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City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 55 of 58
City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
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City of Santa Fe, NM Wastewater Management Division Anaerobic Digester Project BID '18/08/B
Addendum No. 01February 6, 2018
Page 57 of 58