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1 <br /> Following the groundwater level measurements, all of the wells except MW-1 were purged and <br />' sampled The wells were purged using a pump and dedicated disposable tubing, until at least <br /> three well casing volumes were extracted, and/or after groundwater temperature, pH and <br /> electncal conductivity values had stabilized Following well purging and recharge, groundwater <br />' was sampled from the wells using dedicated disposable bailers and laboratory-supplied <br /> containers Each sample container was transported in an iced cooler with chain-of-custody <br /> documentation to Excelchem for analysis Excelchem analyzed each of the groundwater samples <br /> for TPH-as-gasoline and BTEX by EPA Method 8020/8015M, and for MTBE, DIPE, ETBE, TAME, <br /> TBA, and 1,2-DCA by EPA Method 82606 <br /> 2 2 4 Waste Management <br />' Waste sod cuttings generated during drilling were contained in 11, 55-gallon drums for temporary <br /> on-site storage, pending waste profiling and disposition The three drums of waste soil generated <br />' during the drilling of MW-3 in November 2001 remained at the site <br /> On December 2, 2003, Ramage Environmental collected a soil sample from every third drum for <br /> laboratory composite and analysis Excelchem combined the five soil samples into one, and <br /> analyzed the composite soil sample for TPH-as-gasoline and BTEX by EPA Method 8020I8015M, <br /> and for total lead by EPA Method 60108 <br /> 1 The composite soil sample only contained 0 016 milligrams per kilogram (mg/kg) of total xylenes <br /> and 4 6 mg/kg of total lead The laboratory report is included in Appendix D Based on these <br /> analytical results, Ramage Environmental profiled the soil as non-hazardous waste, for disposal at <br />' Forward Landfill in San Joaquin County, under Approval #4049 Currently, disposal of the 14 <br /> drums of waste soil is pending the availability of a waste transportation contractor The disposal <br />' of the waste soil will be documented in a future report or separate correspondence <br /> Wastewater from equipment rinsate and well purging was contained in two, 55-gallon drums <br />' Currently, disposal of the wastewater is also pending the availability of a waste transportation <br /> contractor The disposal of the wastewater will also be documented in a future report or separate <br />' correspondence <br /> 9 <br />