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

RTC for Draft LL1-4 Remedial Action Completion Report
Cmt.#
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Comment
cross reference to end of Section 3.2.2.
Also, add a statement that indicates the
integrity of the sampling, etc. was not
compromised.
A-13 Page 3-4, Line 18-19 Include a reference to use of temperature
blanks
A-14 Page 3-4, Line 28 Please clarify what is meant by “RVAAP
Water Quality Criteria”? It is unclear as to
what is referenced as there is nothing
used by that designation.
A-15 Page 3-5, Line 19 Does the text indicate that there was some
impact from lab contamination? Please
clarify if lab contamination is cited.
Recommendation
Response
integrity of the collected groundwater
samples were not compromised.
Field screening data met the
allowable criteria for sampling
protocols applicable to the site.”
Temperature blanks were sent with
each cooler shipped to the laboratory
for analysis. The text has been
revised to state “Temperature and
trip blanks consisting of…….”
Shaw’s reference to the “RVAAP
Water Quality Criteria” is incorrect.
Per an email from Eileen Mohr dated
November 7, 2007, Shaw was
directed to compare the storm water
sample detection results (or
detection limits if non-detect) with
site-wide surface water background
and filtered/unfiltered groundwater.
Reference to the “RVAAP Water
Quality Criteria” in this section will be
revised to state “Surface Water
Background Criteria and Summary
Statistics for Unconsolidated Zone
Filtered/Unfiltered Groundwater
Background Wells.”
The contaminant concentrations in
samples were not attributable to lab
contamination. A sentence will be
added to the end of the paragraph
that states “The contaminant
concentrations in samples were not
attributable to lab contamination.”
A-16 Page 3-10, Line 24 Add “as” after “as best” The text has been revised to read
“as best as” as requested.
A-17 Page 3-11, Table 3-1 Please confirm the total amount of Non-
The actual tonnage transported off-
Hazardous Soils excavated. Column
site was 9488.63 tons. For report
totals 9488 tons.
purposes (and in the table), the
number was rounded up to get to
9489 tons as shown. The table will
be rectified so that the column in
question sums to 9489 tons.
Shaw Environmental, Inc. 2 of 13 June 20, 2008