Request For Proposals: Dalton-Whitfield Solid Waste Authority Landfill Gas Collection and Control Sy

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
09218052.12 | April 6, 2025
3175 Satellite Blvd building 600 suite
100, Duluth, GA 30096
(678) 319-9849

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

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
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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
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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
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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.
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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
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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)
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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 Allowable Percent of the Lump
Amount Earned Sum Price for the Item
Submittal/completion of items listed in
25
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)
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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 Allowable Percent of the Lump
Amount Earned Sum Price for the Item
Preconstruction Survey 25
LFG System Survey 50
Final Survey - Record Drawings and As- 100
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,
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