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EPA Comments on the <br /> Sharpe Facility <br /> Draft Installation-Wide Preliminary Close Out Report <br /> June 2002 <br /> SPECIFIC COMMENTS <br /> 1. Section 1.5, Introduction, Page 1: This section of the Preliminary Close Out Report(the <br /> Report) states that specific compounds (i.e., trichloroethene [TCE], tetrachloroethene <br /> [PCE], arsenic, chromium, and bromacil) exceed the respective Applicable or Relevant <br /> and Appropriate Requirements (ARARs) at the Site and indicates in which areas <br /> concentrations are exceeded. However, there is no discussion of chromium exceedances <br /> with respect to ARARs. For completeness, please add a discussion of areas where <br /> chromium exceeded ARARs. <br /> 2. Section 2.1, Background, Page 2, Last Sentence: The statement that the Defense <br /> Logistics Agency(DLA) is, "The lead agency, or the agency with primary decision <br /> making authority and responsibility," is potentially misleading. Although DLA is the lead <br /> agency responsible for funding and implementing remedial actions, the U.S. EPA <br /> provides final approval for decisions regarding remedial actions taken at this National <br /> Priorities List (NPL) Site. For clarity, please revise the Report to indicate U.S. EPA's role <br /> in the decision making process at the Site. <br /> 3. Section 2.2.2, Operable Unit 2, Pages 9 and 10 and Table 3, Sites Selected for No <br /> Further Action After Characterization: The Report states that 111 Sites were <br /> designated for No Further Action (NFA) in the Basewide Record of Decision (ROD) and <br /> that Table 3 lists a summary of the NFA sites. However, Table 3 only lists 15 sites. <br /> Please resolve this apparent discrepancy. <br /> 4. Section 2.2.2, Operable Unit 2, Page 9 and Figure 3, Operable Unit 2 Remedial <br /> Actions, Solid Waste Management Units and Other Areas of Soil Contamination, <br /> DDJC-Sharpe: The Report states that the Basewide ROD designated 14 sites for further <br /> action due to VOC contamination and 14 sites due to metal contamination in the vadose <br /> zone and that sites with contaminated soils are shown in Figure 3. However, in Figure 3, <br /> five metals-contaminated sites and 16 TCE sites (including ten sites that were designated <br /> NFA sites after characterization and six sites where Soil Vapor Extraction [SVE] was <br /> implemented) are shown. Please resolve this apparent discrepancy. This comment will <br /> also affect the following Section (Section 2.2.2.2, Soil Remedial Actions [VOCs]). <br /> 1 <br />