be as directed by the Contracting Officer. After all suspected
contaminated material is removed, confirmation samples shall be collected
and analyzed for the following contaminants:
Chemical Parameter
Action Level
[_____]
[_____]
Samples shall be collected at a frequency of one per [_____] square meters
yards from the bottom [and each of the side walls] or as directed by the
Contracting Officer. A minimum of one sample shall be collected from the
bottom [and each side wall] of the excavation. Based on test results, the
Contractor shall propose any additional excavation which may be required to
remove material which is contaminated above action levels. Additional
excavation shall be subject to approval by the Contracting Officer.
Locations of samples shall be marked in the field and documented on the
as-built drawings.
3.5
CONTAMINATED MATERIAL STORAGE
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NOTE: For CERCLA sites, permits are not required to
store hazardous waste in a stockpile. However,
storage structures and conditions must be in
compliance the Applicable, Relevant, and Appropriate
Regulations (ARARs). For RCRA sites, permits are
required to store hazardous waste in a stockpile.
However, for RCRA sites, hazardous waste can be
stored in a drum or roll-off unit for up to 90 days
without a permit.
For temporary storage of more than 90 days, dual
containment of hazardous liquid and some hazardous
solids may be required. Containment system
requirements are described in 40 CFR 264.175. For
stock piles that meet the definition of a waste
pile, see 40 CFR 264.250.
To provide secondary containment, tanks and roll-off
units are sometimes stored on lined areas similar in
design to what is described in paragraph Stockpiles.
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Material shall be placed in temporary storage [immediately after
excavation] [after treatment while awaiting test results]. The following
paragraphs describe acceptable methods of material storage. Storage units
shall be in good condition and constructed of materials that are compatible
with the material or liquid to be stored. If multiple storage units are
required, each unit shall be clearly labeled with an identification number
and a written log shall be kept to track the source of contaminated
material in each temporary storage unit.
3.5.1
Stockpiles
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NOTE: Check state regulations to determine the
minimum requirements for stockpiles and modify this
paragraph accordingly. For contaminated material
with high moisture content, the subgrade for the
SECTION 02111
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