Agenda

F. Soil materials not meeting the Specification requirements shall not be used in
the Work.

3.14 GRADING TOLERANCE

A. Disturbed areas shall be graded so that water sheds and no ponding of surface
water runoff.

B. Finished grades shall be within % inch of the required elevations in areas
where the geomembrane will be placed.

C. Finished grades shall be within 1 inch of the required elevations in areas
beyond that addressed in Paragraph 3.14.B.

[END OF SECTION 02200]

3.12 DEFECTIVE AREAS

A.

have been placed. Materials that may be used to control grades include, but
are not limited to, sections of cardboard tubes or Styrofoam.

F. CONTRACTOR shall ensure that:
1. The geosynthetics remain intact during the installation of the overlying
soil;
2. No foreign material is mixed into the soil; and
3. No vehicles drive on the uncovered geosynthetics.
3.10 RIPRAP

A. Riprap shall be placed on top of a nonwoven geotextile.

care shall be taken to provide recesses in the bedding or trench bottom, as
required, to relieve each bell of any load.

Placement of trench bedding shall be performed by skilled personnel and shall
precede the laying of pipe by a reasonable distance.

3.8

Earth materials shall not be placed during weather conditions that do not
allow for proper moisture and density control. CONTRACTOR shall not resume
earthwork operations until the moisture content and the density of the
previously placed soil are as specified. During freezing conditions, subgrades
and each lift of fill must be compacted before the water in the subgrade or the
fill can freeze.

3.7

to, stones, sticks, and debris shall be removed by hand and replaced with
compacted earth material as indicated on the Drawings.

Deterioration of the subgrade surface between acceptance of the CQA
Consultant and deployment of the geosynthetic materials is the responsibility
of CONTRACTOR and shall be repaired at no cost to OWNER.

3.4

3.5

3.6

shall be refilled and compacted in accordance with these specifications at
CONTRACTOR’s expense with fill approved by ENGINEER.

EXCAVATION FOR UTILITY TRENCHES

A.

Excavate as necessary for installation of utilities including, culverts, leachate
collection and transmission system pipe, and for related structures and
appurtenances.

3.3

Soil shall be placed in loose lifts that result in a compacted lift thickness no
greater than 8 inches. Compaction shall be performed using a static smooth-
drum roller or padded-foot compactors as specified elsewhere in this Section.
Hand compaction of material shall be used in locations where larger
compaction is inappropriate due to limited area.

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.

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: