Search

3.3 MAINTENANCE AND INSPECTION

A. Contractor shall inspect and document all temporary erosion control measures
as required by the Construction Stormwater Pollution Prevention Plan. Any
damaged erosion control measure shall be repaired/replaced promptly.

[END OF SECTION 02000]

P:\3000s\3066.09\Source Files\Type II App\Specifications\ Division 2 Specifications\02000 Erosion.docx

File No. 3066.09 Erosion and Sedimentation Control 02000 - 4 of 4 December 2017

SECTION 02050

DUST CONTROL AND WORK AREA MAINTENANCE

PART 1 - GENERAL

1.1 SCOPE OF WORK

A.

Dust control shall be of paramount importance during construction.
CONTRACTOR shall perform operations and maintain the site, including haul
roads, so that the creation and dispersion of dust is limited to the degree
practical. Dust control shall be implemented throughout the duration of the
Project.

CONTRACTOR is responsible for maintaining the haul roads and the work area.
Haul road maintenance shall be performed to ensure safe and efficient access.
Work area maintenance also shall include the protection of monitoring wells,
and other infrastructure installed at the site.

PART 2 - PRODUCTS

2.1 MATERIALS

A.

B.

C.

CONTRACTOR shall use a watering truck as approved by OWNER.

Water for dust control shall be obtained from locations designated by the
OWNER.

Chemical dust suppressants shall not be used.

PART 3 - EXECUTION

3.1 GENERAL

A.

CONTRACTOR shall implement strict dust control measures during active
construction periods. These control measures will generally consist of water
applied as often as necessary to limit dust emissions, often numerous times per
day during dry weather, or as directed by OWNER, ENGINEER, or the CQA
Consultant.

Existing access roads shall be used by CONTRACTOR whenever possible, so as
not to interfere with on-going landfill operations or deliveries to the active
landfill face. If new haul roads are required to access work areas, then
CONTRACTOR shall obtain approval from OWNER prior to their construction.
Haul roads used during the execution of Work, whether temporary haul roads
created by CONTRACTOR or existing site roads, shall be maintained by

File No. 3066.09 Definitions 02050 - 1 of 2 December 2017

CONTRACTOR. Unless otherwise approved by OWNER, temporary haul roads
shall be restored by smooth grading and seeding to re-establish vegetation.

C. Groundwater and landfill gas monitoring wells have been installed and are
located throughout the site. CONTRACTOR shall protect the wells from
damage during construction. Measures taken to protect the wells from damage
will include flagging and construction of barricades around the wells. Any well
damaged by construction activities will be replaced by OWNER at
CONTRACTOR’s expense.

[END OF SECTION 02050]

P:\3000s\3066.09\ Source Files\Type I] App\Specifications\ Division 2 Specifications\02050 Dust.docx

File No. 3066.09 Definitions 02050 - 2 of 2 December 2017

SECTION 02100

GRUBBING AND TOPSOIL REMOVAL

PART 1 - GENERAL

1.1. SCOPE OF WORK

A.

This Work shall consist of grubbing, removing, and disposing of all vegetation
and debris including stumps, branches, and shrubs, within the limits of Work
shown on the Drawings or specified below.

PART 2 - PRODUCTS

Not used.

PART 3 - EXECUTION

3.1 CONSTRUCTION REQUIREMENTS

A.

B.

No trees shall be cut outside of the work area designated on the Drawings.

CONTRACTOR shall install erosion and sediment controls in areas
topographically below areas, that will be disturbed and shall perform the Work
in a manner that limits erosion and sedimentation. CONTRACTOR shall cease
work and install additional erosion and sediment control measures if directed
by OWNER, ENGINEER, or the CQA Consultant.

Grubbing shall include the removal of brush, stumps, and large roots to a depth
of 2 feet below subgrade unless otherwise directed by ENGINEER or OWNER.
In order to conserve topsoil, CONTRACTOR shall make use of rake teeth on
bulldozers in the process of removing stumps and brush unless other
equipment is allowed by OWNER.

Stumps, large roots, branches, other wood, brush, weeds, grass and other
perishable material resulting from the clearing and grubbing operations shall
be disposed of in an on-site area designated by OWNER.

CONTRACTOR shall strip topsoil for subsequent reuse. Topsoil shall be
stockpiled on-site in an area approved by OWNER.

[END OF SECTION 02100]

P:\3000s\3066.09\Source Files\Type I! App\Specifications\ Division 2 Specifications\02100 Grubbing and Topsoil Removal.docx

File No. 3066.09 Grubbing and Topsoil Removal 02100 - 1 of 1 December 2017

SECTION 02200
EARTHWORK
PART 1 - GENERAL
1.1 SCOPE OF WORK

A. CONTRACTOR shall provide all labor, materials, equipment and incidentals
necessary to perform the earthwork required to complete the Work shown on
the Drawings and specified herein, including, but not limited to: excavation,
placement, grading, and compaction of earth materials; sampling and testing
(laboratory and field) earth materials; and disposal and stockpiling of surplus
soil.

B. CONTRACTOR shall work with the Construction Quality Assurance (CQA)
Consultant and provide assistance as needed so that the required quality
assurance sampling and testing may be performed. Quality assurance
activities shall be considered germane to the Work and not be a cause for
scheduling delays. Quality assurance requirements are defined in the
Construction Quality Assurance Plan.

1.2 SUBMITTALS

A. Prior to initiating interface strength tests (See Section 02560), CONTRACTOR
shall provide the following information to ENGINEER:
1. the proposed material source or sources (either on-site or off-site); and
2. laboratory test data in conformance with the requirements of Part 2.2.

B. Following approval of materials by ENGINEER, CONTRACTOR shall provide the
testing laboratory with samples of each type of soil to be tested for interface
strength.

C. As soon as the information is available, CONTRACTOR shall provide ENGINEER
the results of field and laboratory tests performed on soil. Test reports of field
tests are to be submitted by the following morning.

D. If Work is interrupted for reasons other than inclement weather, then
CONTRACTOR shall notify ENGINEER a minimum of 24 hours prior to the
resumption of Work.

File No. 3066.09 Earthwork 02200 - 1 of 14 December 2017

1.3. SOIL TESTING AND CONSTRUCTION MONITORING

A.

Prior to and during placement of soil, the CQA Consultant may select areas
within the work limits for field compaction testing. CONTRACTOR shall
cooperate fully with the CQA Consultant during testing and shall allow the CQA
Consultant sufficient time to make necessary observations and tests.

OWNER will pay the CQA Consultant for testing. However, if test results
indicate inadequate compaction or earth materials not meeting the
Specifications, CONTRACTOR shall bear all costs associated with correcting
deficiencies in compacted materials to the satisfaction of the OWNER and the
CQA Consultant.

PART 2 - PRODUCTS

2.1 GENERAL

A.

The CQA Consultant shall collect soil samples for grain-size testing per ASTM
D422 and hydraulic conductivity tests (where applicable) per ASTM D2434 or
D5084 for each 3,000 cubic yards of each type of soil to be used in the Work.
In addition, the CQA Consultant will obtain a representative sample from each
source of the Drainage Sand for calcium carbonate testing. Soil materials not
meeting the requirements of this Section shall not be used in the Work. Test
methods for soil materials shall conform to the following, unless other
approved by the ENGINEER.

Particle-Size Analysis, with hydrometer - ASTM D422.

Atterberg Limits - ASTM D4318.

Standard Proctor - ASTM D698.

Hydraulic Conductivity - ASTM D2434 or D5084.

Internal Friction Angle - ASTM D3080.

We WNP

The final approval of a source for the soil will be at the sole discretion of
ENGINEER.

All earth materials unless otherwise specified, shall consist of suitable selected
and approved clean, well-graded granular soil.

All earth materials shall be 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 materials. Earth materials
shall have the physical properties such that it can be readily spread and
compacted to the specified permeability and/or density. Snow, ice, and frozen
soil shall not be permitted.

File No. 3066.09 Earthwork 02200 - 2 of 14 December 2017

2.2

2.3

2.4

STRUCTURAL FILL

A.

Structural Fill shall be used for construction of embankments and general
raises-in-grade. Structural Fill shall be friable soil and shall be free of trash,
ice, snow, tree stumps, roots, and other organic material.

Structural Fill shall contain no stone greater than 8 inches in diameter and
contain no more than 50 percent of the material passing the No. 200 sieve.

Structural Fill placed within 6 inches of geosynthetics shall contain no stone
greater than 1-inch in diameter.

SCREENED TILL

A.

Screened Till shall be used to establish the landfill subgrade beneath the
geomembrane in the secondary liner system and where otherwise indicated on
the Drawings.

The Screened Till shall contain no stone greater than % inches in diameter, and
be free from ice and snow, roots, sod, clay, rubbish and other deleterious

Screened Till shall exhibit a hydraulic conductivity of less than 1 x 10+ cm/sec
when tested in accordance with ASTM D5084. Test specimens shall be
compacted at a moisture content that provides a density no less than 95
percent of the maximum dry density as determined by ASTM D698. Hydraulic
conductivity testing shall be performed at a normal stress of 89 pounds per
square inch (lb/in.?).

Screened Till shall exhibit an internal angle of friction of no less than 30
degrees when tested in accordance with ASTM D3080. Test specimens shall be
compacted at a moisture content and density matching that at which
acceptable hydraulic conductivity tests were performed. Testing shall be
performed at the following normal stresses of 22, 44, and 89 lb/in.2.

DRAINAGE SAND

A.

Drainage Sand shall be used as a soil component of the primary and secondary
liner systems and where otherwise specified on the Drawings.

Drainage Sand shall be free from ice and snow, roots, sod, clay, rubbish and
other deleterious or organic matter meeting the following grain size
requirements:

File No. 3066.09 Earthwork 02200 - 3 of 14 December 2017

Sieve Size Percent Passing by Weight
¥4-inch 100
No. 4 60 - 100
No. 10 40-95
No. 40 5-50
No. 100 0-17
No. 200 0-10

Drainage Sand shall provide a hydraulic conductivity greater than 1x10-+
cm/sec as measured by ASTM D2434.

Drainage Sand shall contain no more than 15 percent calcium carbonate as
measured by ASTM D4373.

2.9 CRUSHED STONE

A.

Crushed Stone to be placed around the secondary and primary leachate
collection pipes shall meet the requirements of #57 aggregate as specified in
Section 703 of the NHDOT Specifications.

Crushed Stone to be placed under buildings, manholes, and other similar
structures shall meet the requirements of #67 aggregate as specified in Section
703 of the NHDOT Specifications.

2.6 RIPRAP

A.

Stone used for Riprap shall be hard, durable, angular in shape; resistant to
weathering and to water action; free from overburden, spoil, and organic
materials; and shall meet the gradation requirements specified.

Neither breadth nor thickness of a single stone should be less than one-third
(4) its length. Rounded stone or boulders will not be accepted unless
authorized by ENGINEER and OWNER.

The sources from which Riprap will be obtained shall be selected well in
advance of the time when the material will be required in the Work. The
acceptability of the material will be determined by service records for similar
stone and/or by suitable tests. If testing is required, suitable samples of stone
shall be taken in the presence of the CQA Consultant at least fourteen (14) days
in advance of the time when the placing of Riprap is expected to begin. The
approval of some rock fragments from a particular quarry shall not be
construed as constituting the approval of all rock fragments taken from the

quarry.

File No. 3066.09 Earthwork 02200 - 4 of 14 December 2017

D. In the absence of service records, resistance to disintegration from the type of
exposure to which the stone will be subjected will be determined by the
following tests:

1. The results of the abrasion test (ASTM C535) shall indicate a percentage
loss of not more than forty (40) after five hundred (500) revolutions.

2. The results of the sulfate soundness test (ASTM C88) shall indicate a loss
not exceeding ten percent (10%) after five (5) cycles.

E. _Riprap shall generally meet the following gradation requirements:

Riprap
Sieve Size Percent Finer
by Weight

12-inch 100

8-inch 40-70
6-inch 20 - 40
3-inch 0-20
2-inch 0-10

F. Control of gradation will be by visual inspection.

G. Any difference of opinion between the CQA Consultant and CONTRACTOR shall
be resolved by dumping and checking the gradation of two (2) random
truckloads of stone. Mechanical equipment, a sorting site, and labor needed to
assist in checking gradation shall be provided by CONTRACTOR at no
additional cost to OWNER.

2.7. TOPSOIL

A. Topsoil shall be used for areas beyond the cell limits disturbed during
construction. Topsoil shall be free of trash, ice, snow, tree stumps, roots, sticks,
clay, peat, weeds, sod, and other non-soil based organic materials.

B. Topsoil shall be friable soil containing no stone greater than 2 inches in
diameter and contain no more than 70 percent of the material passing the No.
200 sieve.

C. Topsoil shall be obtained from naturally well-drained areas.

D. Topsoil shall not be excessively acid or alkaline nor contain material harmful

to plants.

PART 3 - EXECUTION

3.1 EQUIPMENT

File No. 3066.09 Earthwork 02200 - 5 of 14 December 2017

3.2

CONTRACTOR shall only use equipment that has been approved by ENGINEER
for this Work.

CONTRACTOR shall furnish, operate, and maintain grading equipment as is
necessary to produce uniform layers, sections, and smoothness of grade for
compaction and drainage.

CONTRACTOR shall furnish, operate and maintain compaction equipment as is
necessary to produce the required in-place density and moisture content.

CONTRACTOR shall furnish, operate, and maintain tank trucks, pressure
distributors, or other equipment designed to apply water uniformly and in
controlled quantities to variable surface widths, if moisture conditioning is
required to achieve the specified in-place density and moisture content.

CONTRACTOR shall furnish, operate, and maintain soil spreading equipment
that travels on the material being spread without traveling directly on the
surface of the underlying compacted soil surface layer.

CONTRACTOR shall furnish, operate, and maintain miscellaneous equipment
such as scarifiers, disks, spring tooth or spike tooth harrows, earth hauling
equipment, and other equipment necessary for earthwork construction.

GENERAL

A.

CONTRACTOR shall plan and perform his operations so as to prevent damage
to existing structures, safeguard people and property, limit 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 Administration (OSHA).

Prior to excavating or placing and compacting soil, CONTRACTOR shall
carefully inspect the installed Work of all other sections and verify that all
Work is complete to the point where Work of this Section may properly
commence without adverse impact. If CONTRACTOR has any concerns
regarding the installed work of other sections, then CONTRACTOR shall
immediately notify ENGINEER prior to the initiation of soil placement. Failure
to notify ENGINEER in writing shall be construed as CONTRACTOR’s
acceptance of the relative Work of all other Sections.

Soil and aggregate shall not be stockpiled or stored within the limits of the area
to be lined.

Soil shall be placed and compacted to the lines and grades shown on the
Drawings.

Soil shall be placed only on dry, unfrozen subgrade surfaces.

File No. 3066.09 Earthwork 02200 - 6 of 14 December 2017