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{ if <br /> p <br /> 26 April 2011 <br /> AGE-NC Project No. 95-0104 11) <br /> Page 5 of 12 s <br /> well VW-1. The volume of hydrocarbons extracted from`VW-1 was calculated to be <br /> approximately 81 gallons of petroleum hydrocarbon's between 18 March and <br /> { 16 April 1999, and approximately 78 gallons of petroleum hydrocarbons between <br /> 22 July and 14 December 1999. <br /> • On 14 July 2000, one confirmational soil probe boring,(P-1) was advanced at the <br /> isite to assess the effectiveness of SVE remediation effort at the site. TPN-d was <br /> detected in four of the soil samples collected from probe boring P-1 at <br /> concentrations as high as 410 mg/kg (P1-25). IJTPH;d was not detected in soil <br /> samples collected from depths of 35 and 40 feet bsg, however the 45-foot soil <br /> { sample contained TPH-d at a concentration of 1.8;1 mg/kg. TPH-g and BTEX <br /> compounds were not detected in any of the soil samples analyzed.Analytical results <br /> of soil samples are summarized in Table 21� Boring logs are presented in <br /> Appendix C.A report of findings(Ground Water Monitoring Report-Second Quarter <br /> 2000, dated 21 August 2000)was prepared by AGE and submitted to the EHD and <br /> RWQCB. a1 <br /> �t <br /> • On 30 August 2005, ground water monitoring well MW-7 was installed <br /> down-gradient of the former UST area to a total depth'of 85 feet bsg. Well MW-7 <br /> i was completed as a ground water monitoring well`using'2-inch diameter PVC casing <br /> with 0.020-inch slotted screen installed from approximately 65 feet to 85 feet bsg <br /> with blank casing extended to the surface. Laboratory analysis of soil samples <br /> collected from MW-7 did not detect any constituents of concern. Analytical results <br /> of soil samples are summarized in Table 21'1- Borijng logs are presented in <br /> Appendix C. A report of findings (Quarterly Report - Third Quarter 2005, dated 10 <br /> January 2006) was prepared by AGE and submitted to the EHD and RWQCB. <br /> • On 01 June 2006, ground water monitoring wells MW48 and MW-9 were installed <br /> ' down-gradient of the former UST area to total j depths of 85 and 100 feet bsg, <br /> { respectively. Wells MW-8 and MW-9 were completed as ground water monitoring <br /> wells using 2-inch diameter PVC casing with 0.026-inch slotted screen installed from <br /> 4 approximately 65 feet to 85 feet bsg in MW-8 arid from 95 feet to 100 feet bsg in <br /> 1 MW-9 with blank casing extended to the surface'} Soil 'samples were not collected <br /> from wells MW-8 and MW-9. Boring logs are presented in Appendix C. A report of <br /> findings (Quarterly Report - Third Quarter 2006, dated 15 January 2007) was <br /> prepared by AGE and submitted to the EHD and,RWQCB. <br /> • Between 10 and 12 March 2008, ground water monitoring wells MW-10 through <br /> MW-14 were installed down-gradient of the former UST area on the adjacent <br /> property (4716 East Waterloo Road, Stockton, CA) to;rtotal depths of 85 feet bsg. <br /> Wells MW-10 through MWA4 were completed as ground water monitoring wells <br /> using 2-inch diameter PVC casing with 0.020-inch slotted screen installed from <br /> j approximately 65 feet to 85 feet bsg with blank casing extended to the surface. <br /> ' Laboratory analysis of soil samples collected from MVI A0 through MW-14 did not <br /> 1 ;l Advanced GeoEnvironmental,Inc. <br /> t <br />