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<br /> and visual evidence of petroleum hydrocarbons A PID was used as a field-screening device for F
<br /> the detection of petroleum Hydrocarbon vapors in drill cuttings and cored samples A field
<br /> geologist logged drill cuttings and soil samples utilizing the Unified Soil Classification System
<br /> Descriptions of soil types encountered and sample collection intervals are included on the well
<br /> construction logs contained in Appendix A
<br /> Dnil cuttings were temporarily stored on site in 55-gallon DOT approved steel drums
<br /> 2.2 Soil Sample Analvsis
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<br /> Selected soil samples were kept on ice and delivered under chain-of-custody documentation to
<br /> State-certified Argon-Laboratones-Inc-(ELAP Cert -No 2359) in Ceres, California for chemical
<br /> analysis Selected soil samples were analyzed by Argon Laboratones for TPHg by EPA method
<br /> 8015 modified, BTEX by EPA method 8020, methyl tertiary butyl ether (MTBE), tertiary amyl
<br /> methyl ether (TAME), tertiary butyl ether (TBA), ethyl tertiary butyl ether (ETBE), di-isopropyl
<br /> ether (DIPE), 1,2-dichloroethane -(1,2-DCA), and ethyl dibromide (EDB) by EPA method 8260,
<br /> and total lead The analytical results for soilsamples are sumnianzed in Table 1 Laboratory
<br /> data sheets and chain-of-custody documentation are included in Appendix B
<br /> 25 Groundwater Sampling and Analysis
<br /> On November 18, 2005, one groundwater sample was collected from SB10 from a depth, of
<br /> approximately 47 feet bgs The groundwater sample was placed on ice and delivered under
<br /> chain-of-custody documentation to Argon Laboratories for chemical analysis The groundwater
<br /> sample was analyzed for TPHg by EPA method 8015 modified, BTEX by EPA method 80218,
<br /> and MTBE, TAME, TBA, ETBE, RIPE, 1,2-DCA, and EDB by EPA method 8260B The
<br /> analytical results for groundwater samples are summarized in Table 2 Laboratory data sheets
<br /> and chain-of-custody documentation are included in Appendix B
<br /> On December 5, 2005, a groundwater sample was collected from SB 11 and SB 12 from depths of
<br /> approximately 45 to 50 feet bgs The groundwater samples were placed on ice and delivered
<br /> under chain-of-custody documentation to Argon Laboratories for chemical analysis The
<br /> groundwater samples were analyzed for TPHg by EPA method 8015 modified, BTEX by EPA
<br /> method 8021B, and MTBE, TAME, TBA, ETBE, DIPS, 1,2-DCA, and EDB by EPA method
<br /> 8260B The analytical results for groundwater samples are summarized-in Table 2 Laboratory
<br /> data sheets and chain-of-custody documentation are included in Appendix B
<br /> On December 28, 2005, one groundwater sample was collected from SB13 from a depth of
<br /> approximately 47 feet bgs The groundwater sample was placed on ice and delivered under
<br /> cham-of-custody documentation to Argon Laboratories for chemical analysis The groundwater
<br /> sample was analyzed for TPHg by EPA method 8015 modified, BTEX by EPA method 8021B,
<br /> and MTBE, TAME, TBA, ETBE, DIPE, 1,2-DCA, and EDB by EPA method 8260B The
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