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KLEINFELDER Pile No 20-3769-01 January 3, 1995 A record of the fieldP arameter readings obtained are listed on the Purge Characterization and Sample Log, copies of which are provided in Appendix A Laboratory Analysis The groundwater sample from monitoring well MW-3 was labeled and placed in an iced sample container The sample was transported by the field personnel to the Kleinfelder office in Stockton and then transported by courier in a sealed container to ADPL, Inc in Fresno, California ADPL, Inc is certified by the State of California Department of Toxic Substance Control for the analyses performed The sample was transported under chain- of-custody documentation The groundwater sample was analyzed for Total Petroleum Hydrocarbons Purgeable (Gasoline Range) by EPA Method 8015NU5030 [TPH-G] o Benzene, Toluene, Ethylbenzene, Xylenes by EPA Method 8020/5030 [BTEX] None of the analytes were detected at or above laboratory reporting lumts in the groundwater sample from well MW-3 For additional information regarding the analytical results for the groundwater sample obtained from well MW-3, please refer to the chain-of-custody and laboratory data sheets in Appendix B CONCLUSIONS Groundwater beneath the site was fround to be flowing g towards the east/northeast at 0 0485 feet/foot on December 16, 1994 Selected fuel constituents were not detected in a rwater sample obtained from monitoring well number 3 dunng the December 16, 1994 groundwater sampling However, gasoline odors were present in the groundwater of wells MW-1 and MW-2, therefore, samples were not obtained from those wells for analysis Kleinfelder recommends that a copy of this report be submitted to the State of California Regional Water Quality Control Board (RWQCB) and the San Joaquin County Environmental Public Health Services Department Environmental Health Division (SJCEHD) for their review and consideration ETH and WC/95 Page 4 of 5 Copyright 1995 Kleinfelder Inc