Final Remedial Action Completion Report for the ... - Rvaap.org

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Comment
The intent of multi-incremental
sampling is to send in the entire
sample collected. Was sending
a maximum of 1 kilogram
specified in the Work Plan and
how often was it necessary to
reduce the size of the MI
sample?
Shaw Environmental, Inc. 2 of 39
Recommendation
Response
were determined based on risk-based
and site-specific considerations,
including background
concentrations, duration of
reasonable maximum human
exposures, and reasonably
anticipated future land use (National
Guard mounted training, no
digging). Attainment of the RAO
addressed potential risks to human
and ecological receptors identified in
the risk assessment through removal
of surface and subsurface soil and
dry sediment with concentrations of
COCs exceeding clean-up goals
(Shaw 2007a). The clean-up goals
implemented for the remediation of
soils and dry sediment at LLs 1-4 as
presented in the Interim ROD are
included in Table 2-1.” Table 2-1
will include a list of the COCs and
associated cleanup goals.
Clarify. The original intent in the Work Plan
was to submit the entire multiincremental
sample to the laboratory
for processing; however, discussions
with Test America during the
procurement process indicated that
typically only 1 kg of soil is sent for
processing including samples
submitted in the past by USACE.
After collecting the required sample
volume and homogenizing it in the
field, Shaw reduced the size of the
MI sample as best possible so that
approximately only 1 kg of soil was
collected for each MI area.
Shaw will include a sentence at the
end of the 1 st paragraph in section