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�I t LLN AR69I0D Close Our wrf(a-tM Rosen, Oss sxxaeen at Afix2017 the only instinnionahland use earth in Table 2 that was applicable to the Eastern GSA was 10 prevent water supply use/consumption of contaminated ground water until ground water cleanup standards were act. By July of2005, the concentrations of all individual VOC COCs had ken reduced to below their ground water cleanup standards in all fustian GSA wells. In February 2007, the Eastern GSA mound water extraction and treatment system was shut down and placed on standby with regulatory concurrence. VOC concentrations in ground water were monitored from February 2007 until February 2012 to verifytlmt concentrations did not rebound above cleanup standards. Post- shutdown VOC rebound monitoring results are discussed in Section 4. 1'rmn 1991 to 2007, over 300 million gallons of eastern GSA around water were extracted and treated. Table 3 presents historical maximum and current maximum VOC Coe concentrations in Eastern GSA around water monitor wells compound to te h MCL cleanup standards. Cleanup progress for the Porters GSA and treatment facility compliance monitoring results n reported in quarterly GSA compliance reports until the second semester of2005; after which it was regard semiannually in the Site 300 Compliance Monitoring Repots. A list of documents relevant to the Eastern GSA CERCLA renushatiun, including the compliance organs, is included as Appendix B. 2.7. Onsite Inspcef rraw Tbere is continuous presence of Site 300 Enviranmenlal pragmatism Pmgmm staff at Site 300 that impeded: (I) the extraction wciffbAd and treatment facilities weekly, and (2) the monitoring wellfield during sampling activities. The Site 300 Environmental Restoration Pmgmm conducts selfassessment inspections of facilities and DOE conducts quarterly inspections of nmedietion activities at Site 300. DOE also conducts inspections as part of the Five YearReview process. no RWQCB RPM performs site inspections twice a year, and FPA and DISC RPMs perform Periodic site inspections. Issues and deficiencies observed during assessments are tracked from inception to resolution using the institutional Issues Tracking System and reported in the semi- nual Compliance Monitoring Reports. Tk EPA performed their construction completion inspection as July 13, 2005. 2.8, Community Involvement All CERCI .A documents related to me GSA OU have been placed in the LLNI. Site 300 CERCLA Administrative Record file. These documents were also placed in the Information Repositories located in the LLNL Discovery Center in Livermore, California and in the Tracy Public Library in Tracy, California. n addition, electronic topics of the GSA CERCLA documents issued after 1995 were posted online to allow for easier public access. As discussed in Section 2.3, a proposed Plan for Environmental Cleanup of the GSA OU was issued in 1996 for the public to review and comment on the remedial alternatives and purposed cleanup remedy and standards. A Public Meeting was held on April N, Hour during which DOE and LLNL summarized information presented in the GSA Feasibility Sandy and Proposal Plan, and public comments and concerns were recorded. Public comments received at the Public Meeting and in writing were considered by DOE and the regulffiary agencies in the selection of the fund cleanup remedy and cleanup starrdards, and were addressed in the Responsiveness