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AMBRIA Ms Vicki McCartney <br /> July 6, 2005 <br /> ANTICIPATED THIRD QUARTER 2005 ACTIVITIES <br /> Groundwater Monitoring Blaine will gauge and sample the site wells according to the revised <br /> sampling schedule outlined in SJCEHD's May 18, 2005 letter and tabulate the data Wells <br /> MW-1, MW-3, MW-5, and MW-6 will be sampled annually during the second quarter, wells <br /> MW-4 and MW-10 will be sampled semi-annually during the second and fourth quarters,—and <br /> wells MW-2, MW-7, MW-8, and MW-9 will continue to be sampled quarterly~ In addition, <br /> analyses for 1,2-dichloroethane and 1,2-dibromoethane will be discontinued 'Cambna will <br /> prepare a groundwater monitoring report <br /> Sate Investigatton: Cambria will submit a work plan proposing CPT borings by <br /> September 1, 2005 Cambria will submit recommendations for well installations with the report <br /> summarizing the CPT investigation <br /> HISTORICAL REMEDIATION SUMMARY <br /> A soil vapor extraction (SVE) system operated at this site from September 1992 to <br /> November 1996 During this time, the SVE system removed approximately 17,628 pounds of <br /> vapor-phase total petroleum hydrocarbons as gasoline from the subsurface <br /> • <br /> 2 <br />