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Y <br /> • clear Teflon® bailer or an oil-water interface probe The well will then be purged of <br /> approximately three casing volumes of water (or to dryness) using a centrifugal pump, gas <br /> displacement pump, or bailer The equipment and purging method used for the sampling <br /> event will be noted on the field data sheets During purging, temperature, pH, and <br /> electrical conductivity will be monitored in order to document that these parameters are <br /> stable prior to collecting samples After purging, water levels will be allowed to partially <br /> recover Groundwater samples will be collected using a Teflon bailer, placed into <br /> appropriate EPA-approved containers, labeled, logged onto chain-of-custody documents, <br /> and transported on ice to a California State-certified laboratory <br /> Laboratory Procedures <br /> Groundwater samples collected will be analyzed for the presence of TPHg, benzene, <br /> toluene, ethylbenzene, xylenes, MtBE, DIPE, TAME, EtBE, TBA, 1,2 DCA, EDB, and <br /> ethanol by EPA Method 8260B, Single Run <br /> Soil Cuttings and Rinsate Water <br /> Soil cuttings generated during drilling operations will be temporarily stored onsite and <br /> covered with plastic sheeting pending characterization and disposal Soil cuttings will be <br /> removed by Tosco's disposal contractor to an appropriate disposal facility Water <br /> generated during steam cleaning will be temporarily stored in DOT-approved 55-gallon <br /> • drums pending transport by Tosco's disposal contractor to an appropriate disposal or <br /> treatment facility Soil cuttings and ansate water drums will be temporarily stored onsite <br /> for approximately 4 to 8 weeks <br /> • <br />