Section 01780 — Project Record Documents Page 2 of 2
January 2021 3066.21
PART 3 - EXECUTION
Not used.
[END OF SECTION 01780]
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CONTENTS
DIVISION 2 - SITE WORK
Section 02200 - Earthwork
Section 02275 — Nonwoven Geotextile
Section 02350 - Odor Control During Construction
Section 02550 - Gcomembrane
Section 02560 — LFG Extraction Wells
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SECTION 02200
EARTHWORK
PART 1 - GENERAL
11 SCOPE OF WORK
A.
CONTRACTOR shall provide all labor, materials, equipment, and incidentals
necessary to excavate and backfill trenches for the landfill gas collection and
control system as shown on the Drawings and specified herein, including, but
not limited to: excavation, disposal, and/or replacement of waste; placement
and compaction of earth materials; and grading.
PART 2 - PRODUCTS
2.1 GENERAL
A.
All earth materials, unless otherwise specified, shall consist of clean soil
substantially free from organic materials, wood, trash, and other objectionable
materials that may be compressible or that cannot be properly compacted.
Earth materials shall not contain stone blocks, broken concrete, masonry
rubble, or other similar material. Earth materials shall have physical
properties such that it can be readily spread and compacted to the specified
density. Snow, ice, and frozen material shall not be permitted.
Non-hazardous chemically contaminated soil provided by OWNER may be
used as backfill within the landfill.
Unless otherwise specified, the maximum particle size shall be no larger than
two-thirds the loose lift thickness.
2.2 MATERIALS
A.
Intermediate Cover shall be soil containing no stone larger than 1 inch, and shall
have a maximum of 75 percent passing the No. 40 sieve and a minimum of 35
percent passing the No. 200 sieve.
PART 3 - EXECUTION
3.1 GENERAL EXCAVATION BELOW GRADE
A.
CONTRACTOR shall plan and perform earthwork activities to prevent damage
to existing structures, safeguard people and property, minimize disruptions to
site traffic, protect the structures to be installed, and provide safe working
conditions in compliance with local safety regulations and provisions of the
Occupational Safety and Health Act (OSHA).
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Specification 02200 - Earthwork Page 2 of 3
January 2021 3066.21
B. _ Excavation shall be made to the elevations, grades, and dimensions shown on
the Drawings. Excavate sufficient material to provide suitable room for
construction providing bracing and support as required.
3.2. EXCAVATION IN WASTE
3.3
A.
CONTRACTOR shall take safety precautions during construction activities that
conform to all OSHA regulations and the safety requirements of OWNER and
the Specifications.
Trenches shall be excavated to the depths, widths, and alignments shown on
the Drawings.
CONTRACTOR shall separate cover soil from excavated waste to the extent
possible. Cover soil may be used to backfill trenches. Excavated material not
suitable for use as backfill shall be transported to the working face as directed
by OWNER.
Pockets of perched leachate may be encountered during waste excavation
activities. CONTRACTOR shall immediately notify OWNER and ENGINEER
when leachate is encountered. OWNER will provide CONTRACTOR with
written directions on how to manage the leachate in narrative and/or drawing
form. Potential leachate management techniques may include one or a
combination of the following.
1. Backfilling the affected area.
2. Realigning the trench.
3. Installing a French drain.
To the extent possible, the trench invert shall slope uniformly as indicated on
the Drawings.
CONTRACTOR shall not excavate more trench than can be backfilled in one day
after placement of the pipe. Excavations shall not be left open overnight.
CONTRACTOR shall provide odor control during construction activities. Odor
control measures shall be approved by OWNER prior to use.
BACKFILL
A.
Excavated material shall be placed in loose layers and compacted to the extent
possible with the goal of establishing a firm, even surface. The loose lift
thickness shall not exceed 12 inches.
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Specification 02200 - Earthwork Page 3 of 3
January 2021 3066.21
3.4 QUALITY AND OVERSIGHT
A. ENGINEER does not have to be present, and does not supervise or direct of the
actual Work by CONTRACTOR, his/her employees, or agents. Neither the
presence of ENGINEER nor any observations and testing performed by
ENGINEER shall excuse CONTRACTOR from defects discovered in their Work.
[END OF SECTION 02200]
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SECTION 02275
NONWOVEN GEOTEXTILE
PART 1 - GENERAL
11 SCOPE OF WORK
A. Furnishing and installation of a nonwoven geotextile for placement in the
areas indicated on the Drawings.
12 SUBMITTALS
A. CONTRACTOR shall submit to ENGINEER the manufacturer’s technical
information of the proposed nonwoven geotextile.
PART 2 - PRODUCTS
2.1 NONWOVEN GEOTEXTILE
A. The nonwoven geotextile shall meet or exceed the property values specified
herein. Nonwoven geotextiles shall be comprised of polymeric yarns of fibers
or weld or drawn strands oriented into a stable network that will retain its
structure during handling, placement, and long-term service.
B. Nonwoven geotextile shall be non-biodegradable. The manufacturer's
recommendations regarding handling and installation of such materials shall
be followed.
C. Nonwoven geotextiles shall be manufactured of polypropylene or polyester
material exhibiting the following Minimum Average Roll Values (MARV).
MARV
Property Test Method
10 oz/yd2
Mass per Unit Area (0z/yd?) ASTM D5261 10
Grab Tensile Strength (lbs) ASTM D4632 250
Trapezoidal Tear Strength (psi) | ASTM D4533 100
Apparent Opening Size (mm) ASTM D4751 <0.21
CBR Puncture (Ibs) ASTM D6241 700
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Specification 002275 — Nonwoven Geotextile Page 2 of 2
January 2021 3066.21
PART 3 - EXECUTION
3.1 INSTALLATION
A. Nonwoven geotextiles shall be installed in accordance with the manufacturer’s
recommendations, as shown on the Drawings, and specified herein.
B. Nonwoven geotextiles shall be overlapped by at least 12 inches.
C. All holes and tears in nonwoven geotextiles shall be noted and repaired.
[END OF SECTION 02275]
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SECTION 02350
ODOR CONTROL DURING CONSTRUCTION
PART 1 - GENERAL
11 SCOPE OF WORK
A.
The Contractor shall perform its work so that odors are limited to the
immediate working area during construction activities involving excavation
in waste.
Should the Contractor fail to control odors, additional methods to prevent
off-site detection of odors shall be performed by the Contractor at no cost to
the Owner.
Additional odor controls methods include using neutralizing agents and a
portable misting system.
PART 2 - PRODUCTS
2.1 MATERIALS
A.
B.
Odor controls neutralizing agents shall be proposed by the Contractor for
approval by the Owner.
The portable misting system (if needed) shall be proposed by the Contractor
for approval by the Owner.
PART 3 - EXECUTION
3.1 GENERAL
A.
The Contractor shall implement odor control measures during construction
activities that involve excavation in waste.
The area of exposed waste as a result of the work shall be limited to the
degree practical. Trench excavations shall be limited to the length of trench
that may be backfilled in the same day.
If directed by the Owner, the Contractor shall apply odor neutralizing agent
directly onto odorous spoils.
Excavated waste shall be hauled promptly from the work area to the working
face for disposal. All excavated waste must be hauled to the working face
before the end of each working day. Work involving excavation in waste
shall cease when the working face is closed for the day unless other
arrangements have been made to cover the exposed waste.
File No. 3066.21
Odor Control During Construction 02350 - Page 1 of 2 January 2021
The Contractor shall cover areas of exposed waste at the end of each day
with approved daily/intermediate cover or natural soils, which may be
obtained from on-site sources.
During the work, the Contractor shall regularly check for odors in the down-
wind direction and employ additional odor neutralizing agent if odors are
detected.
The Contractor shall have a portable misting system available to control
odors during construction activities that involve excavation in waste. The
Contractor shall be responsible for maneuvering the equipment as necessary
based on wind direction or source of odor, and replenishing the equipment
with water and odor control agent. The Owner will provide water for
Contractor’s use. The Contractor shall be responsible for locating the
portable misting system downwind of their operations on a daily basis. The
system shall be moved as the construction location changes.
In lieu of the misting system, odor control may be accomplished by spraying
directly on odorous spoils, into trenches, and at the top of well boreholes.
This method shall be used on odorous spoil piles if the misting system is not
effective. To limit potential implications to worker health and safety,
spraying an odor neutralizing solution directly in the work area shall not
occur while construction activity (ie, header pipe installation, gas well
installation, etc.) is in progress at such locations. In those instances, the
portable misting system shall be positioned downwind of the construction
activity and located only as close to active work areas as possible without
creating a potential hazard for workers working in those areas.
[END OF SECTION 02350]
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File No. 3066.21
Odor Control During Construction 02350 - Page 2 of 2 January 2021
SECTION 02550
GEOMEMBRANE
PART 1 - GENERAL
11 SCOPE OF WORK
A. CONTRACTOR shall furnish all labor, materials, tools, equipment, and
incidentals, and perform all operations necessary to furnish, deploy, seam, and
test the textured, high-density polyethylene (HDPE) Geomembrane
(Geomembrane) as described in this Specification and where indicated in the
Drawings.
12 DEFINITIONS
A. Geomembrane Manufacturer: The party responsible for the manufacturing of
the Geomembrane liner material.
B. Installation Contractor: The Installation Contractor shall be the GGomembrane
Manufacturer or a contractor approved by the manufacturer to install the
Geomembrane Manufacturer’s Geomembrane and who is trained and
experienced in field handling, storing, deploying, seaming, and QC testing of
Geomembrane for landfill applications.
C. Lot: A quantity of resin (usually the capacity of one rail car) used by the
Geomembrane Manufacturer. Each finished roll of Geomembrane will be
identified by a roll number traceable to the resin lot used.
D. Panel: Unit of GGomembrane seamed in the field and is larger than 100 square
feet (ft*).
E. Patch: Unit of Gomembrane seamed in the field and is smaller than 100 ft2.
F. CQA Consultant: OWNER will engage a CQA Consultant to verify the quality of
raw materials, the integrity and quality of seams and seaming processes
performed on-site, and the locations and results of all testing and repair work
performed. The CQA Consultant will observe and document the work, and in
particular, the quality control testing performed by the Installation Contractor.
H. Quality Control (QC): The Geomembrane Manufacturer shall implement QC
measures to ensure that the GGomembrane provided meets the Specifications
provided herein. The Installation Contractor shall implement QC measures to
ensure Geomembrane installation is complete and is in compliance with the
Specifications contained herein. QC procedures include, but are not limited to
providing the Geomembrane Manufacturer’s material QC certifications;
providing experienced and competent field staff; performing adequate
File No. 3066.21 Geomembrane 02550 - 1 of 10 January 2021
