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�� Iftw/w 19 November 2009 AGE-NC Project No. 02-0950 Page 4 of 13 high as 22,000 mg/kg TPH-g and 7,500 mg/kg TPH-d in soil, and at concentrations as high as 170,000 µg/1 TPH-g and 23,000 gg/1 TPH-d in water. Additionally, 1,2-dichloroethane (1,2-DCA) and 1,2-dibromoethane (EDB) were detected in grab water samples collected from all three borings at concentrations as high as 54 µg/1 and 190 gg/1, respectively Analytical results of soil and grab ground water samples are summarized in Tables 1 and 23. Boring logs are presented in Appendix C. A report of findings (Preliminary Investigation and Evaluation Report, dated 30 December 2002)was prepared by AGE and submitted to the EHD and RWQCB. • On 09, 10 and 16 October 2003, four soil borings (MW-1 through MW-3 and B4) were advanced on-site to total depths of 55 feet bsg for collection of soil and grab water samples. The pilot borings for MW-1,MW-2 and MW-3 were completed as 2-inch diameter ground water monitoring wells utilizing polyvinylchloride(PVC)well casing and screened at depths between 14 feet and 34 feet. Laboratory analysis of soil samples detected TPH-g and BTEX compounds from B4 and MW-2 at concentrations as high as 12 mg/kg.Laboratory analysis of a grab water sample collected from B4 at 53 feet bsg detected petroleum concentrations at 14,000 µg/1 TPH-g, 11,000 µg/1 TPH-d, 11 µg/1 benzene, 260 µg/1 toluene, 430 µg/1 ethylbenzene, 2,650 µg/1 xylenes and 2.2 µg/l 1,2-DCA. Analytical results of soil and grab ground water samples are summarized in Tables 1 and 3. Boring logs are presented in Appendix C.A report of findings(Quarterly Report-4'Quarter 2003, dated 01 April 2003) was prepared by AGE and submitted to the EHD and RWQCB. • On 10 and 11 June 2004,two soil borings(Alta EM B5 and Alta EM B6)were advanced off- site towards the north to depths of 23 feet bsg for collection of soil and grab water samples. As part of a business transaction,the investigation was performed by Alta EM Inc.to ensure that the adjacent Sierra Lumber facility had not been impacted by the former Masonite USTs. Laboratory analysis of soil and grab water samples did not detect any constituents of concern. A report of findings(Site Assessment Report,dated 22 June 2004)was prepared by Alta EM Inc. and submitted to the EHD. • On 19 July 2005, one soil borings (B5) was advanced off-site toward the south to a total depth of 35 feet bsg for collection of soil and grab water samples. Laboratory analysis of a grab water sample collected from B5 at 25 feet bsg detected TPH-d concentrations at 19,000 gg/1. Laboratory analysis of soil samples did not detect any constituents of concern. Analytical results of soil and grab ground water samples are summarized in Tables 1 and 3. Boring logs are presented in Appendix C. A report of findings (Additional Site Assessment Report, dated 01 November 2005) was prepared by AGE and submitted to the EHD and RWQCB. • On 20 July 2005, one paired cone penetrometer test boring (CPT-1)was advanced on-site to a depth of 100 feet bsg to characterize hydrogeologic conditions and for collection of grab water samples. Laboratory analysis of grab water samples collected from CPT-1 at depths Advanced GeoEnvironmental,Inc.