Old Dixie Highway MSW Landfill 2026 Gas Collection and Control System Expansion

Technical Specifications

Dalton Whitfield Regional Solid Waste Management Authority 587 Gazaway Rd.

Dalton, Georgia 30721

3175 Satellite Blvd building 600 suite 100, Duluth, GA 30096

(678) 319-9849

09218052.12 | April 6, 2025

Table of Contents

Technical Specifications

01 10 00 Summary of Work 01 20 00 Measurement and Payment 01 20 10 Project Meetings 01 30 10 Contractor Submittals 01 40 00 Quality Control 01 50 30 Protection of Existing Facilities 01 70 30 Project Record Documents 02 41 16 Refuse Handling, Storage, and Disposal 31 20 00 Excavating, Trenching, Backfilling and Grading 32 90 00 Seeding and Sodding 32 90 20 Environmental Assessment 33 21 70 LFG Extraction Wells and Wellheads 33 21 70-1 Borehole Logging Supplement 33 21 80 Landfill Gas Collection System Appurtenances 33 51 10 Pipe and Pipe Fittings 33 51 10-1 Pipe and Pipe Fittings – Hydrostatic and Pneumatic Test Data Form 33 51 30 Condensate Management System

VINUTA SHESHAPPANAVAR, PE

GA PE LICENSE NO. 051568

Dalton Whitfield Regional Solid Waste Management Authority SUMMARY OF WORK Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 10 00-1

SECTION 01 10 00

SUMMARY OF WORK

PART 1 – GENERAL

1.01 PROJECT DESCRIPTION

A. The project work to be performed by the Contractor consists of furnishing all labor, materials, equipment, tools, transportation, services, incidentals, and performing all work necessary to complete the project, in place and ready for service in accordance with the plans and specifications prepared therefor and entitled “2026 Gas Collection and Control System Expansion Old Dixie Landfill Technical Specifications”. The work generally includes but is not limited to the following items:

1. Construction staking/system layout/surveying prior to construction.

2. Installing below grade High-Density Polyethylene (HDPE) landfill gas (LFG) extraction wells.

3. Installing below grade HDPE horizontal collectors

4. Installing below grade HDPE LFG laterals and header, air supply lines, and liquid conveyance lines.

5. Installing gas wellheads, including fittings, valves, tubing, hoses, clamps, regulators and filters, and related appurtenances.

6. Installing new pumps, including tubing, clamps, and related appurtenances.

7. Connection of the Gas Collection and Control System (GCCS) Expansion to the existing GCCS.

8. System start-up and testing

9. Conformance surveying

10. Providing as-built documentation (record drawings)

1.02 CONTRACTOR QUALIFICATIONS

1.03 The Successful Contractor on this project shall be required to perform a minimum of 50% of the work (labor) on this project. All landfill GCCS Work must be performed by a Georgia licensed and registered General Contractor with a minimum of 5 years experience in construction and installation of landfill GCCS, which has successfully installed the specific product herein for at least 5 projects in

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 10 00-2 the past 5 years of similar or greater size and function. Included with each bid shall be a list of the all projects performed within the past 5 years that demonstrates the minimum experience requirement. The information included for each project submitted as per 00420 – CONSTRUCTION CONTRACTOR’S QUALIFICATION

STATEMENT FOR ENGINEERED CONSTRUCTION WORK SEQUENCE

Construction work is to be sequenced to accommodate work with any other contractors on site or AUTHORITY forces. Work shall be sequenced so that no existing vertical extraction wells, or sections of the GCCS, are taken offline for an extended period (as approved by the AUTHORITY) at any time during the Work. Contractor is to install new sections of GCCS prior to disconnecting those limited sections indicated in the Contract Drawings for removal.

1.04 CONTRACTOR USE OF PREMISES

A. Limit use of premises for work, storage, and access to allow work by other contractors, owner occupancy, and normal landfill operations.

B. Work Days: As detailed in the AUTHORITY specifications, allowable work times shall be Monday through Saturday from 5:00 a.m. to 5:00 p.m., excluding Sundays and AUTHORITY observed Holidays. Contractor shall request in writing to the AUTHORITY 48 hours prior to Sunday or AUTHORITY observed Holiday to work.

C. Access: No later than 10 days after the Contractor receives the AUTHORITY’s notice to proceed, the Contractor shall arrange with the AUTHORITY a sequence of procedures, means of access, space for storage of materials and equipment, and use of approaches and roadways. Contractor’s use of the premises shall be confined to the areas approved by the AUTHORITY.

D. Smoking: Smoking is prohibited at the Old Dixie Highway MSW Landfill.

E. Contractor shall not dispose any refuse on site without approval of the AUTHORITY and in accordance with Section 02 41 16, Refuse Handling, Storage, and Disposal.

F. Contractor shall coordinate with the AUTHORITY for available areas to locate Contractor’s trailer. Non-potable water, septic tank, and electrical services are already available. If using the electrical service, the Contractor is responsible for coordinating with the electric company for any connections and pay for electrical services at no additional cost to the AUTHORITY.

1.05 AUTHORITY OCCUPANCY AND LANDFILL OPERATIONS

The Contractor shall cooperate with the AUTHORITY during construction operations to minimize conflicts with AUTHORITY work and facilitate AUTHORITY usage. The Contractor shall perform the work so as not to interfere with the AUTHORITY’s

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 10 00-3 operations, maintenance, environmental monitoring, and other AUTHORITY activities at the site.

1.06 SITE CONDITIONS

A. Existing Grades: The existing grades may vary from those indicated on the Plans due to landfill settlement and ongoing filling operations.

B. Existing Features: The Contract Documents require the Contractor to field verify the location of existing features. Existing features include but may not be limited to the following: stormwater drainage structures and underground pipes, stormwater terraces and swales, leachate collection system cleanouts, sumps, pump stations, electrical panels, forcemain, utilities, roads, guardrails, drainage culverts, monitoring wells and piezometers, fences, and buildings.

C. The Contractor shall enforce safety procedures to minimize hazards to workers, the public, and the environment.

1.07 ERRORS AND/OR OMISSIONS IN PLANS AND SPECIFICATIONS

The intent of the Specifications is to outline or indicate the items of work, or both, which cannot be readily shown on the Drawings and, further to indicate the types and qualities of materials. Drawings and specifications shall be considered as being complementary and items or work mentioned or indicated in one and not in the other shall be included as if mentioned in both. Should Drawings disagree in themselves or with the Specifications the better quality or greater quantity of work or materials shall be estimated upon, and shall be provided.

PART 2 – PRODUCTS (Not Used)

PART 3 – EXECUTION (Not Used)

END OF SECTION

Dalton Whitfield Regional Solid Waste Management Authority MEASUREMENT & PAYMENT Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-1

SECTION 01 20 00

MEASUREMENT AND PAYMENT

PART 3 - GENERAL

3.01 DESCRIPTION

A. The Contractor shall receive and accept the compensation provided in the Contract as full payment for furnishing all labor, equipment, and materials and for performing all construction/operations necessary to complete the work as described in the Contract, and in full payment for all losses or damages incurred during the work, for any discrepancies between actual and estimated quantities, or from any unanticipated difficulties which may arise during the work until final acceptance by the Authority.

B. Payment for the various items on the Contractor’s Bid Form, as further specified herein, shall include all compensation to be received by the Contractor for furnishing all tools, equipment, supplies, and manufactured articles and for all labor, operations, supervision, overhead, and profit, and incidentals appurtenant to the items of work being described as necessary to complete the various items of the work all in accordance with the requirements of the Contract Documents, including all appurtenances thereto, and including all costs of compliance with the regulations of public agencies having jurisdiction, including Safety and Health Requirements of the Occupational Safety and Health Administration (OSHA) of the U.S. Department of Labor.

C. No separate payment will be made for any item that is not specifically set forth on the Contractor’s Bid Form and all costs therefore shall be included in the prices named on the Contractor’s Bid Form for the various appurtenant items of work.

Payment for complying with the safety requirements for construction on the work site shall be included in the contract unit price paid for the various items of work wherein it is required, and no separate payment will be made therefore.

D. The total Bid Amount shall cover all work required by the Contract Documents.

All costs in connection with the proper and successful completion of the work, including furnishing all materials, equipment, supplies, and appurtenances;

providing all construction equipment and tools; including all costs and expenses for taxes, commissions, transportation charges and expenses, permit fees, patent fees, royalties, handling and tests; and performing all necessary labor and supervision to fully complete the work shall be included in the bid. All work not specifically set forth as a pay item on the Contractor’s Bid Form shall be considered a subsidiary obligation of Contractor and all costs in connection therewith shall be included in the unit prices bid and/or the lump sum prices.

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-2

E. The quotations for the various items of work are intended to establish a total price for completing the work in its entirety. Should the Contractor feel that the cost for any item of work has not been established by the Contractor’s Bid Form, the Contractor shall include the cost for that work in some other applicable Bid Item, so that their proposal for the project does reflect their total price for completing the work in its entirety.

F. All estimated quantities stipulated on the Contractor’s Bid Form are approximate and are to be used only (a) as a basis for estimating the probable cost of the work and (b) for the purpose of comparing the bids submitted for the work. The actual amounts of work done and materials under unit price items may differ from the estimated quantities. The basis of payment for work and materials will be the actual amount of work done and materials furnished unless it exceeds the estimated quantities in which case a change order must be approved prior to payment for quantities exceeding the estimated quantity.

G. The Contractor shall field verify all quantities and dimensions shown on the Drawings or contained in the Contract Specifications.

H. The Contractor shall be responsible for establishing contracts with its subcontractors, which have a measurement and payment in accordance with this Section. If the Contractor establishes a contract with its subcontractors, which is in conflict with this Section, any additional cost incurred will be borne by the Contractor.

I. Restoration is not a separate pay item but is considered to be an integral part of the work under the contract, and all contract bid prices include the cost of restoration necessitated by the work related to that bid item. Restoration includes existing structure and property, paving, stabilized roads, drainage piping and ditches, catch basins, head walls, yard culverts, driveways, lawns and ground areas, walkways, and irrigation systems, which are altered, removed or damaged during construction. Cleanup is an integral part of restoration.

3.02 COMPUTATION OF QUANTITIES

A. Measurement of quantities expressed as area shall be based upon a horizontal, planimetric projection to the work limits as determined by survey record drawings prepared by a surveyor licensed in the State of Georgia. Cost of surveying shall be paid by Contractor, and incorporated into Bid Items, as appropriate.

B. Measurement of linear Items will be for quantities actually field installed to the specified work limits, based upon surveyed stations recorded along the straight or curved centerline of each respective Item. Measurement conducted by survey is to be conducted by the Contractor’s approved surveyor licensed in the State of Georgia.

C. Payment will be made to the limits as specified in the Contract Documents. If the constructed limits are less than the specified limit, payment will be made to the

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-3 actual limits of construction as shown on the Record Drawings. Payment for quantities that exceed the specified contract limits will only be made with the approval of the Authority with acceptable supporting documentation from the Contractor. Payment for quantities that exceed the Contract quantities can only be obtained through an approved Change Order.

D. No partial payments shall be made for the installation of items which have not been tested and approved by the Engineer.

E. Payment will be made monthly until completion of each unit price item based on quantity completed by Contractor, and verified by the Engineer. Final payment will be based on quantity calculated from Record Drawings prepared by a surveyor licensed in the State of Georgia and confirmed by field measurement by the Engineer.

F. Payment for Lump Sum items will be made as described for each individual lump sum Bid Item. The Contractor shall not rely on the estimated quantities given, but shall instead estimate all quantities for the item independently for the basis of their bid. No claim shall be made by the Contractor for deviations between the Contractor’s estimated quantity and the Engineer’s estimated quantity including the quantity required to complete the Work. The Contractor shall base their bid solely on the Contractor’s independently estimated quantity.

3.03 VARIATIONS IN ESTIMATED QUANTITIES

A. The quantities given in the Contract Documents are approximate only, and are given as a basis for the uniform comparison of bids. The Authority does not expressly, or by implication, agree that the actual amount of work will correspond therewith.

B. The Contractor must provide, for unit price work, a proposed contract price determined on the basis of estimated quantities required for each item. The estimated quantities of items are not guaranteed and are solely for the purpose of comparing bids. Each such unit will be deemed to include an amount for overhead, profit and indirect costs for each separately defined item.

3.04 BID FORM

A. The Bid Form for the items contained within this Section can be found in the Contract Documents.

PART 4 - PRODUCTS (Not Used)

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-4

PART 5 - EXECUTION

5.01 MEASUREMENT AND PAYMENT

A. Item No. 001 – Mobilization/Demobilization (Lump Sum)

Measurement. Measurement for this item shall be on a lump sum basis based on percentage of work completed.

Payment. Payment for this item shall be on a lump sum basis as described below.

No price adjustments will be made for this item due to changes in the work. Item includes, but not limited to, performance of preparatory paperwork and construction operations, movement of personnel and equipment to the project site, safety equipment, furnishing, and installing at the beginning of the project, as well as removing and disposing at the conclusion of the project, required facilities to begin work on a substantial phase of the Contract.

The Contract Price for mobilization/demobilization shall be subject to the following provisions:

a. Partial payments for mobilization/demobilization will be made in accordance with the following schedule.

Condition or Percent of Total Contract

Amount Earned Allowable Percent of the Lump

Sum Price for the Item

Submittal/completion of items listed in Section 013010 prior to construction

10 percent total contract amount earned 40

25 percent total contract amount earned 60

50 percent total contract amount earned 80

100 percent total contract amount earned 100

The final payment for mobilization/demobilization will not be made until all temporary facilities, excess materials, temporary erosion and sedimentation controls, equipment, and appurtenances used to perform the Work and all remaining construction debris have been removed from the site. Additionally, this shall include the submittal of all final record drawings, record survey project photos, release of liens, warranties, and other incidentals as specified as requirements of project close-out.

B. Item No. 002 – Project Survey (Lump Sum)

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-5

Measurement. Measurement for the Work specified in this item shall be based on the schedule below for payment and all Items related to survey the Work shall be included in the Lump Sum price.

Payment. Payment for this item shall be on a lump sum basis as described below.

No price adjustments will be made for this item due to changes in the work. This item will consist of all surveying and control required by the Contract Documents.

Surveying shall be performed as described in the technical specifications. This work includes establishment of appropriate local site benchmarks, baseline surveys, location of utilities, stakeout of elevation and positional information required to complete the construction, progress payment surveys, and obtaining all survey information required to compile Record (As-Built) Drawings as required by the Contract Documents. As-built drawings must be signed and sealed by a surveyor licensed in the State of Georgia.

The Contract Price for Project Survey shall be subject to the following provisions:

a. Partial payments for surveying will be made in accordance with the following schedule.

Condition or Percent of Total Contract

Amount Earned Allowable Percent of the Lump

Sum Price for the Item

Preconstruction Survey 25

LFG System Survey 50

Final Survey - Record Drawings and As- Built signed and sealed survey as required

The following defines complete documents for the surveys notated above:

Preconstruction Survey: The preconstruction survey shall include a survey of the existing conditions within the limits of construction of the Gas Collection and Control System (GCCS) Expansion. The survey shall note all above grade structures, piping, and features which may or will be impacted by the work. The preconstruction survey shall include proposed location of landfill gas header and lateral pipes, vertical wells, remote wells, road crossings, connection points to existing GCCS, sections to be abandoned and removed, and any other improvement as part of the GCCS Expansion. Vertical well location to include Northing, Easting, ground surface elevation to determine any adjustments prior to drilling.

LFG System Survey: The LFG system survey shall include survey locations of the landfill gas header and lateral pipes, vertical wells, remote wells, road crossings, Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-6 connection points to existing GCCS, abandoned and removed sections, and any other improvement as part of the GCCS Expansion.

Final Survey - Record Drawings and As-Built: Following completion of the LFG Survey, the final survey will include all features of the project installed as part of the construction project and all existing features within the limits of construction.

The final survey shall include, but not limited to, GCCS components, all above grade structures, piping, sod limits, roadways, stormwater downchutes, and features that were impacted by the work.

The Contractor shall, throughout the project, maintain a redline set of construction drawings noting deviations or actual installed conditions for the GCCS Expansion.

As part of Final Completion, the Contractor must submit a complete set of final Record Drawings based on the redlines maintained throughout the project which identify the actual constructed conditions. These record drawings shall use the construction drawings as a base and show changes by cloud and strikethrough in electronic format (AutoCAD 2018 or newer). The record drawings shall incorporate the surveys listed above and any other changes made to the components of the GCCS into the set so to create a single Record Drawing Set for the project. A draft Record Drawing set, in both hardcopy and AutoCAD 2018 (or newer) format in accordance with the specifications, must be submitted to the Authority and Engineer for review in order to grant Substantial Completion. Final completion cannot be granted until certified Record Drawings (hardcopy and AutoCAD) signed and sealed by a Georgia licensed Professional Engineer or Land Surveyor and the Project Record Documentation package is submitted to and approved by the Authority and Engineer. The Record Drawings are critical to the Authority and must be accurate to receive approval by Georgia Environmental Protection Division for operation of the facility.

Partial Surveys of Work: It is understood that the Contractor may elect to survey each section of the GCCS system separately. Partial surveys must be submitted to the Engineer to determine that the section the Contractor is requesting to continue working in meets the design requirements. The Contractor may not continue work until the partial survey is approved. Partial surveys are not required to be signed and sealed at the time of submittal, however, the partial surveys used to compile the complete survey for each of the surveys listed above, must not deviate from the partial survey submitted and the complete survey must be certified for submittal.

Payment for surveys will not be made until the complete, certified survey is submitted and approved. However, partial surveys may be used for payment of work items such as soil and piping upon review, agreement, and approval by the Authority, Engineer, and CQA Representative.

C. Item No. 003 – Drilling Rig Platform (Each)

Measurement. Measurement for this item shall be on a unit basis per each landfill gas well.

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-7

Payment. Payment for this item will be at the contract unit price per each drilling rig platform constructed for landfill gas well. Payment will include all activities associated with drilling rig platform construction including, excavation, loading, hauling, filling, and compaction of the clean soil the rig platform area near gas well, and deconstructing the platform following the completion of drilling. The grades shall be restored following the removal of platform. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

D. Item No. 004 – 36-inch Diameter Bore with 8-inch Diameter HDPE SDR 11 Casing (Vertical Foot)

Measurement. Measurement for this item shall be on an installed vertical foot basis per specified landfill gas wells from existing ground surface to the bottom of the well bore as measured in the field by the Engineer.

Payment. Payment for this item will be at the contract unit price per vertical foot installed. Payment will include all boring, stone (inclusive of testing), soil, hydrated bentonite, geotextile, well bore reinforcement grate, backfilling, waste relocation to working face, health and safety requirements, HDPE piping (solid and perforated), connections, fittings, and shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents. Price shall include the above-grade riser pipe at each well.

E. Item No. 005 – Boring Refusal (Vertical Foot)

Measurement. Wells that must be abandoned due to insufficient depth resulting from boring refusal shall be paid on a linear foot basis as measured in the field by the Engineer from existing ground surface to the bottom of the well bore. No boring may be abandoned without approval of the Engineer. Proper backfill of abandoned boreholes will include clean soil to surface. This item shall include all material, labor, equipment, waste relocation to working face, backfill transportation, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

Payment. Payment for this item will be at the contract unit price per linear foot of boring, and includes boring, and backfilling with clean soil.

F. Item No. 006 – 6-inch Perforated HDPE SDR 11 Horizontal Collector – 1’ deep stone w/ geocomposite and geotextile (Linear Foot)

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe wherein measurement will be made in the plan view from the LFG System Survey.

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-8

Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 6-inch HDPE SDR 11 horizontal collector piping with 1’ of stone backfill, geocomposite, and geotextile. Payment includes trench excavation (3 ft deep or less), loading, hauling, and unloading of excavated waste from GCCS expansion trenches and disposing of at the active face; geocomposite placed on the bottom of trench; loading, hauling, and unloading of stone placed into horizontal collector trenches; geotextile placed on top of stone backfill; soil and trash mixture backfill, soil compaction, fittings, piping, connections, stub-ups for connections at wellheads, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

G. Item No. 007 – 7’x7’x5’ Rock Pack for Horizontal Collectors (Each)

Measurement. Measurement for this item shall be on an installed per unit basis per each Rock Pack.

Payment. Payment for this item shall be at the contract unit price per each 7’x7’x5’ Rock Pack. Payment includes excavation (5 ft deep or less), loading, hauling, and unloading of excavated waste from excavation and disposing of at the active face; loading, hauling, and unloading of stone placed into excavations;

quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

H. Item No. 008 – 6-inch HDPE SDR 17 Above Grade Pipe for Horizontal Collectors (Linear Foot)

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe wherein measurement will be made in the plan view from the LFG System Survey.

Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 6-inch HDPE SDR 17 solid pipe for horizontal collectors.

Payment includes loading, hauling, and unloading of clean soil from adjacent borrow area and mounded on the above grade lateral at 50 ft intervals, fittings, piping, connections, stub-ups for connections at wellheads, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

I. Item No. 009 – 10-inch HDPE SDR 17 Pipe in Landfill Gas Lateral Trench (Linear Foot)

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-9

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe wherein measurement will be made in the plan view from the LFG System Survey.

Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 10-inch HDPE SDR 17 lateral piping. Payment includes trench excavation (5 ft deep or less), loading, hauling, and unloading of excavated waste from GCCS expansion trenches and disposing of at the active face; loading, hauling, and unloading of clean soil from adjacent borrow area and placed into GCCS expansion trenches; placing pipe bedding, placing caution tape, clean soil backfill, soil compaction, fittings, piping, connections, stub-ups for connections at wellheads, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, pressure testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

J. Item No. 010 – 8-inch HDPE SDR 17 Pipe in Landfill Gas Lateral Trench (Linear Foot)

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe wherein measurement will be made in the plan view from the LFG System Survey.

Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 8-inch HDPE SDR 17 lateral piping. Payment includes trench excavation (5 ft deep or less), loading, hauling, and unloading of excavated waste from GCCS expansion trenches and disposing of at the active face; loading, hauling, and unloading of clean soil from adjacent borrow area and placed into GCCS expansion trenches; placing pipe bedding, placing caution tape, clean soil backfill, soil compaction, fittings, piping, connections, stub-ups for connections at wellheads, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, pressure testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

K. Item No. 011 – 6-inch HDPE SDR 17 Pipe in Landfill Gas Lateral Trench (Linear Foot)

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe wherein measurement will be made in the plan view from the LFG System Survey.

Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 6-inch HDPE SDR 17 lateral piping. Payment includes trench excavation (5 ft deep or less), loading, hauling, and unloading of excavated

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-10 waste from GCCS expansion trenches and disposing of at the active face; loading, hauling, and unloading of clean soil from adjacent borrow area and placed into GCCS expansion trenches; placing pipe bedding, placing caution tape, clean soil backfill, soil compaction, fittings, piping, connections, stub-ups for connections at wellheads, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, pressure testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

L. Item No. 012 – 4-inch HDPE SDR 11 Liquid Conveyance Line in Common Trench (Linear Foot)

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe size wherein measurement will be made in the plan view from the LFG System Survey.

Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 4-inch HDPE SDR 11 Liquid Conveyance Line in a common trench with the air supply line and header or lateral pipe. Payment includes fittings, piping, connections, stub-ups for connection at wellheads and isolation valves, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, pressure testing, and incidentals.

Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

M. Item No. 013 – 4-inch HDPE SDR 11 Liquid Conveyance Line in Separate Trench (Linear Foot)

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe size wherein measurement will be made in the plan view from the LFG System Survey.

Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 4-inch HDPE SDR 11 Liquid Conveyance Line in a separate trench with the air supply line and header or lateral pipe. Payment includes fittings, piping, placing caution tape, connections, stub-ups for connection at wellheads and isolation valves, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, pressure testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

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N. Item No. 014 – 2-inch HDPE SDR 9 Air Supply Line in Common Trench (Linear Foot)

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe size wherein measurement will be made in the plan view from the LFG System Survey.

Payment. Payment for this item shall be at the contract unit price per horizontal linear foot of installed 2-inch HDPE SDR 9 Air Supply Line with the liquid conveyance line and header or lateral pipe. Payment includes fittings, piping, connections, stub-ups for connections at wellheads and isolation valves, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, pressure testing, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

O. Item No. 015 – Piping in Deeper Trench (Linear Foot)

Measurement. Measurement for this item shall be on an installed linear foot basis per specified pipe size wherein measurement will be made in the plan view from the LFG System Survey

Payment. Payment for this item will be at the contract unit price per horizontal linear foot of installed 10-inch HDPE SDR 17 header piping in deeper trench of 5 to 10 feet. Payment includes fittings, piping, connections, stub-ups for connections at wellheads and isolation valves, cutting and capping of pipes to be abandoned in place, pipe location markings, quality control surveying, pressure testing, trenching, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

P. Item No. 016 – 10-inch Header Isolation Valve (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment for this item will be at the contract unit price per installed unit, including excavation, backfilling, flanges, valves, valve stem extension controls, fittings, spacers, piping installation and connections, flexible hoses, and related component, testing, plastic wrapping and coating, and other incidentals. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

Q. Item No. 017 – 4-inch Liquid Conveyance Isolation Valve (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

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Payment. Payment for this item will be at the contract unit price per installed unit, including excavation, backfilling, flanges, valves, valve stem extension controls, fittings, spacers, piping installation and connections, flexible hoses, and related component, testing, plastic wrapping and coating, and other incidentals. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

R. Item No. 018 – 2-inch Air Supply Line Isolation and Blowoff Valve (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment for this item will be at the contract unit price per installed unit, including excavation, backfilling, flanges, valves, valve stem extension controls, fittings, spacers, piping installation and connections, flexible hoses, and related component, testing, plastic wrapping and coating, and other incidentals. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

S. Item No. 019 – 2-inch Liquid Conveyance Line Air Release Valve (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment for this item will be at the contract unit price per installed unit, including excavation, backfilling, flanges, valves, valve stem extension controls, fittings, spacers, piping installation and connections, flexible hoses, and related component, testing, plastic wrapping and coating, and other incidentals. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

T. Item No. 020 – LFG Wellheads – (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment for this item shall be at the contract unit price per supplied unit, including new QED quick change orifice plate wellheads with fine tune control valve and all required connections, QED well caps, Solarguard flex hose, steel clamps, fittings, monitoring/sample port covers, high liquid level indicator, and HDPE reducers. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-13

U. Item No. 021 – 3-inch Liquid Conveyance Stub-up Pump Discharge Manifold– (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis. This item is for the pump discharge manifold at stub-ups at a new condensate sump.

Payment. Payment for this item will be at the contract unit price per supplied unit, including valves, fittings, spacers, installation and connections, testing, and other incidentals. Contractor is to install stub-ups and pump discharge manifold and connect the pump discharge manifold with the new pump placed in the gas extraction well. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

V. Item No. 022 – 2-inch Air Supply Stub-up Valve Fittings – (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis. This item is only for the check and ball valve at stub-ups at a new condensate sump.

Payment. Payment for this item will be at the contract unit price per supplied unit, including valves, fittings, spacers, installation and connections, testing, and other incidentals. Contractor is to install stub-ups, valves, and valve fittings. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

W. Item No. 023 – GCCS Sign (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment for this item shall be at the contract unit price per supplied unit. Payment includes procuring and installing the signs as per the design drawing. Payment shall constitute all compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

X. Item No. 024 – Side Slopes Seeding and Erosion Control Matting (Square Yard)

Measurement. Measurement for this item shall be on a square yard basis wherein measurement will be made in the plan view from the Final Survey. The area has been estimated to include a 50-foot wide section following the alignment of the header and lateral along the side slopes. Areas disturbed by the Contractor that are not required as part of the performance of the work, as determined by the Authority and Engineer, will not be included in the quantity of payment.

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-14

Payment. Payment for this Bid Item will be made on a square yard basis of actual seed installed and accepted. This pay item shall include, but not limited to, materials, labor, equipment, conditioning topsoil with fertilizer and/or lime application, supplying and installing seed, replanting, repair of erosion, maintaining areas seeded through final acceptance of the Work, and any other work necessary to produce a uniform stand of grass. No payment will be made for seed placed outside of the limits of specified areas without prior approval of the Engineer or for areas disturbed by the Contractor that are not required as part of the performance of the Work. Payment of seed shall not relieve the Contractor of the need to maintain seeded areas throughout warranty period

Y. Item No. 025 – Tie-In to Existing 10-inch Vacuum Lateral (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment shall include excavation to existing 10-inch lateral and tie-ins to the lateral pipe with any required pipe fittings and reducers as shown on the drawings. Payment includes excavation, pipe bedding, backfilling, soil compaction, fittings, piping, connections, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

Z. Item No. 026 – Tie-In to Existing 2-inch Air Supply Line (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment shall include excavation to existing 2-inch air supply line, and tie-ins to the air supply line with any required pipe fittings as shown on the drawings. Payment includes excavation, pipe bedding, backfilling, soil compaction, fittings, piping, connections, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

AA. Item No. 027 – Tie-In to Existing 3-inch Liquid Conveyance Line (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment shall include excavation to existing 3-inch liquid conveyance line, and tie-ins to the liquid conveyance line with any required pipe fittings as shown on the drawings. Payment includes excavation, pipe bedding, backfilling, soil compaction, fittings, piping, connections, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-15 equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

BB. Item No. 028 – 6-inch HDPE Lateral Tie-In to Existing Leachate Cleanouts (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment shall include excavation to existing 6-inch HDPE SDR 17 pipe for the Leachate cleanout and tie-ins to the 6-inch HDPE SDR 17 pipe with any required pipe fittings as shown on the drawings. Payment includes excavation, pipe bedding, backfilling, soil compaction, fittings, piping, connections, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

CC. Item No. 029 – Tie-In to Proposed 8-inch SDR 11 Well Casing for Proposed Horizontal Collectors (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment shall include excavations and tie-ins to the Proposed 8-inch HDPE SDR 11 Well Casing with any required pipe fittings as shown on the drawings. Payment includes excavation, pipe bedding, backfilling, soil compaction, fittings, piping, connections, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

DD. Item No. 030 – 24-inch HDPE SDR 17 Condensate Sump with Pump Installation (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment for this item shall be at the contract unit price per installed 24-inch condensate sump with pneumatic pump, including excavation, stone base support, backfilling, clean soil backfill material, dewatering efforts, fittings, sump and piping installation and connections, monitoring ports, supplied pump, placements and testing of the pump, pump data modules, pump air and discharge hoses, check and ball vales, connectors for air and liquid conveyance discharge line, testing, and connection to header pipe. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

Old Dixie Highway MSW Landfill 2026 GCCS Expansion 01 20 00-16

EE. Item No. 031 – 36-inch HDPE SDR 17 Condensate Sump with Pump Installation (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment for this item shall be at the contract unit price per installed 36-inch condensate sump with pneumatic pump, including excavation, stone base support, backfilling, clean soil backfill material, dewatering efforts, fittings, sump and piping installation and connections, monitoring ports, supplied pump, placements and testing of the pump, pump data modules, pump air and discharge hoses, check and ball vales, connectors for air and liquid conveyance discharge line, testing, and connection to header pipe. Payment shall constitute full compensation for all material, labor, equipment, and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

FF. Item No. 032 – 4-inch HDPE Liquid Conveyance Tie-In to Existing Leachate Cleanouts (Each)

Measurement. Measurement for this item shall be on a completed and installed unit basis.

Payment. Payment shall include excavation to existing 24-inch HDPE SDR 17 pipe for the Leachate cleanout and tie-ins to the 24-inch Pipe with any required pipe fittings as shown on the drawings. Payment includes excavation, pipe bedding, backfilling, soil compaction, fittings, piping, connections, quality control surveying, and incidentals. Payment shall constitute full compensation for all material, labor, equipment and work incidental thereto, necessary to complete this item in accordance with the Contract Documents.

Item No. Description Unit Estimated Quantity Unit Price ($) Amount ($)

001 Mobilization/Demobilization LS 1 002 Project Survey LS 1 003 Drilling Rig Platform EA 13 004 36-inch Diameter Bore with 8-inch Diameter HDPE SDR 11 Casing VF 620 005 Boring Refusal VF 130 006 6-inch Perforated HDPE SDR 11 Horizontal Collector - 1' deep stone w/ geocomposite & geotextile LF 4,100 007 7' x 7' x 5' Rock Pack for Horizontal Collectors EA 3 008 6-inch HDPE SDR 17 Above Grade Pipe for Horizontal Collectors LF 1,970 009 10-inch HDPE SDR 17 Pipe in Landfill Gas Lateral Trench LF 3,950 010 8-inch HDPE SDR 17 Pipe in Landfill Gas Lateral Trench LF 1,090 011 6-inch HDPE SDR 17 Pipe in Landfill Gas Lateral Trench LF 2,380 012 4-inch HDPE SDR 11 Liquid Conveyance Line in Common Trench LF 3,660 013 4-inch HDPE SDR 11 Liquid Conveyance Line in Separate Trench LF 380 014 2-inch HDPE SDR 9 Air Supply Line in Common Trench LF 3,170 015 Piping in Deeper Trench LF 100 016 10-inch Header Isolation Valve EA 3 017 4-inch Liquid Conveyance Isolation Valve EA 4 018 2-inch Air Supply Line Isolation and Blowoff Valve EA 2 019 2-inch Liquid Conveyance Air Release Valve EA 2 020 LFG Wellheads EA 25 021 3-inch Liquid Conveyance stub-up Pump Discharge Manifold EA 2 022 2-inch Air Supply Stub-up Valve Fittings EA 2 023 GCCS Sign EA 36 024 Side Slopes Seeding and Erosion Control Matting SY 46,100 025 Tie-in to Existing 10-inch Vacuum Lateral EA 4 026 Tie-in to Existing 2-inch Air Supply Line EA 1 027 Tie-in to Existing 3-inch Liquid Conveyance Line EA 1 028 6-inch HDPE Lateral Tie-in to Existing Leachate Cleanouts EA 5 029 Tie-in to Proposed 8-inch SDR 11 Well Casing for Proposed Horizontal Collectors EA 5 030 24-inch HDPE SDR17 Condensate Sump with Pump Installation EA 1 031 36-inch HDPE SDR17 Condensate Sump with Pump Installation EA 1 032 4-inch HDPE Liquid Conveyance Tie-in to Existing Leachate Cleanouts EA 2

LEGEND

EA - each LS - lump sum VF - vertical foot LF - linear foot SY - square yard

SUBTOTAL BID COST

Authorized Contingency

TOTAL BID COST

Dalton Whitfield Solid Waste Authority - Old Dixie Highway MSW Landfill 2026 Gas Collection and Control System Expansion

00300 – BID FORM

Invitation to Bid No. xxxxxx

The following prices are hereby given by…