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03 September 2004 r <br /> AGE-NC Project No 98-0448 i - <br />' Page 2of13 <br />' • 13 May 2004- Installation of one,single-completed SVE well(VW-6)to a maximum depth <br /> of 25 feet bsg and one, single-completed 1AS well to 35 feet b`sg, soil samples collected from <br /> both wells at five-foot intervals <br />' • 26 May 2004 - Monthly monitoring event performed on SVE/IAS remediation system <br /> • 03 June 2004-SVE well VW-6 and IAS well AW-5 brought on-line into on-going SVE/IAS <br />' remediation system, monthly monitoring event performed on SVE/IAS remediation system <br /> • 22 June 2004 - Monthly monitoring event performed on SVE/IAS remediation system <br />' • 02 July 2004 - Quarterly ground water monitoring event (Second Quarter 2004)performed <br /> at wells-MW-1, MW-2, MW-4A, MW-4B and MW-6 <br /> I <br /> 2.0. SVE AND IAS WELL INSTALLATION <br /> On 13 May 2004, SVE well VW-6 and IAS well AW-5 were installed at the site Soil borings for <br /> VW-6 and AW-5 were advanced vertically to depths of 25 feet and 35 feet, respectively, utilizing <br /> a CME-75 limited-access drill ng equipped with 8-inch diameter hollow-stern augers All soil <br /> cuttings generated from drilling activities were containerized in Department of Transportation <br /> (DOT)-approved 55 gallon drums (model 17H) and stored in a southwest section of the site, well <br /> I locations are depicted on Figure 2 SVE and IAS well installation procedures for the site were <br /> outlined in the AGE-prepared Remedial Action Work Plan Addendum, dated 14 March 2004 and <br /> approved by the San Joaquin County Environmental Health Department by letter dated 15 April <br /> I2004 A copy of the work plan approval and dnlling permit are in Appendix A <br /> I21 SOIL SAMPLING PROCEDURES <br /> Discrete soil samples were collected at 5-foot intervals, beginning at 15 feet bsg, from VW-6 and <br /> AW-5 Soil samples were collected utilizing a California modified split-spoon sampler loaded with <br /> 2-inch by 6-inch brass sleeves The sampler was driven by dropping a 140-pound weight from a - <br /> height of 30 inches <br /> Soil samples were preserved by covering both ends of the second brass sleeve with Teflon sheets, <br /> capping and sealing with tape Each preserved sample sleeve was labeled with soil boring location, <br /> depth, time, date and sampler's initials Each preserved sample was logged on a chain of custody <br /> form, placed in a chilled container and transported to McCampbell Analytical Inc (MAI), a <br /> California Department ofHealth Services(DHS)-certified laboratory for analysis in accordance with <br /> iEPA Method 5030/8015M for total petroleum hydrocarbons quantified as gasoline(TPH-g), <br /> IAdvanced Gen Environmental,Inc <br /> I <br />