3.2.1
Sampling
Obtain samples in accordance with ASTM D 1586 or ASTM D 1587. Perform
standard penetration tests at the following depths:
0 to 450 mm; 450 to
900 mm; 900 to 1350 mm; and 1500 mm 0.0 to 1.5 feet; 1.5 to 3.0 feet; 3.0
to 4.5 feet; and 5 foot centers or at changes in soil formation thereafter.
Each soil sample shall be screened in the field with an organic vapor
analyzer/flame ionization device (OVA/FID) capable of detecting vapors to a
minimum of one ppm. Log boring in accordance with ASTM D 2487 and ASTM D
2488. Groundwater elevation shall be indicated.
3.2.2
Analysis
The CPC shall review the log data from each borehole and compare the data
with the well design requirements. The CPC shall verify the adequacy of
the well design, or shall offer a proposed modification to the design based
on the geologic and hydrogeologic data obtained from the borehole. This
review and analysis shall be conducted [for each borehole] [for one
borehole considered representative of the entire project]. The CPC shall
submit the borehole boring logs, the analysis of the well design, and any
proposed design modifications to the Contracting Officer in a Borehole
Analysis Report. Any modifications to the well design approved by the
Contracting Officer shall be considered a change to the contract documents
and shall be negotiated in accordance with the "CHANGES" clause.
3.2.3
Alignment
Verify that the well is straight by lowering a 3 m 10 foot section of
[_____] mm inch diameter steel pipe in to the well. [For wells deeper than
60 m 200 feet, Contractor shall verify that the well is plumb.]
3.3
SOIL REMOVED FROM THE BOREHOLE
3.3.1
Temporary Containment of Soil Removed from the Borehole
Soil removed from the borehole shall be placed in a temporary containment
area. Provide a temporary containment area near the well site. Cover
containment area with 0.25 mm 10 mil reinforced polyethylene sheeting.
Place soil removed from the borehole[s] on the impervious barrier and cover
with 0.15 mm 6 mil reinforced polyethylene sheeting. Provide a straw bale
berm around the outer limits of the containment area and cover with
polyethylene sheets. Secure edges of sheets with weights to keep the
polyethylene sheeting in place. Water runoff shall be diverted from the
stockpiled material. As an option, soil may be stockpiled in trucks
suitable for transporting contaminated soils as specified herein.
3.3.2
Testing Requirements for Stockpiled Soils
3.3.2.1
Sampling
A minimum of one composite sample shall be developed and analyzed for each
required test [for every 76.4 cu. m 100 cubic yards or fraction thereof]
from a composite stockpile of soil removed from all well sites. To develop
a composite sample of the size necessary to run the required tests, the
Contractor shall take several samples from different areas along the
surface and in the center of the stockpile. These samples shall be
combined and thoroughly mixed to develop the composite sample.
SECTION 02525N
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