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iBased on field observations and PID measurements, a total of 12 soil samples were submitted for laboratory analysis Each soil sample was sealed with Teflon film and plastic end caps, and transported in an iced cooler with chain-of-custody documentation to Excelchem Environmental ' Labs (Excelchem), a state of California-certified hazardous waste testing laboratory (Certification #2119) Excelchem analyzed each of the soil samples for TPH-as-motor oil, TPH-as-diesel, TPH- as-gasoline and benzene, toluene, ethylbenzene, xylenes (BTEX) by EPA Method 802018015M, and for MTBE, di-isopropyl ether (DIPS), ethyl tertiary butyl ether(ETBE), tertiary amyl methyl ether (TAME), tertiary butanol (TBA) and 1,2-dichloroethane (1,2-DCA) by EPA Method 82608 2 2 3 Groundwater Monitoring, Sampling and Analysis ' On July 24, 2002, Ramage Environmental monitored and sampled the four wells Depth-to- groundwater was monitored using a water level indicator capable of measurements to within 0 01 ' foot Following groundwater level measurements, the wells were purged and sampled The wells were purged with a pump and dedicated disposable tubing until at least three well casing volumes have been removed and/or after groundwater temperature, pH and electrical conductivity values have stabilized Groundwater was sampled from the wells using disposable polyethylene bailers and laboratory-supplied containers Each sample container was transported in an iced cooler with chain-of-custody documentation to Excelchem Excelchem analyzed each sample for TPH-as-motor oil, TPH-as-diesel, TPH-as-gasoline and BTEX by EPA Method 802018015M, and for MTBE, DIPE, ETBE, TAME, TBA, and 1,2-DCA by EPA Method 8260B ' 2 2 4 Waste Storage and Disposal All waste soil generated during drilling was contained in 13, 55-gallon drums On July 12, 2002, to characterize the waste soil, Ramage Environmental collected seven soil samples from the drums (i e , one sample per every two drums) The samples were collected into stainless steel sleeves, sealed with Teflon film and plastic end caps, and transported in an iced cooler with chain-of- custody documentation to Excelchem Excelchem combined the seven samples into two and analyzed the composite samples for TPH-as-gasoline and BTEX by EPA Method 802018015M, and for total lead by EPA Method 200 7 Based on the analytical results, the waste soil was profiled as non-hazardous waste by Allied Waste Industries, Inc under Approval#2230 On September 9, 2002, Kane Drum Removal transported 16 drums for disposal to Forward Landfill in San Joaquin County, California The three additional drums of soil had been left at the site by Kleinfelder after their drilling project in May 1994 Copies of the weight ticket and non-hazardous waste manifest are included in Appendix C, and the laboratory reports are included in Appendix F 9 it