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AGS <br /> boring. Drilling and sampling equipment will be steam-cleaned prior to drilling the first <br /> borehole and between boreholes. The sample barrels will be washed in a three-step <br /> procedure consisting of initial water rinse, washing with trisodium phosphate soap, and <br /> final rinse with deionized water. Since a dedicated, used-once, disposable polyethlene <br /> bailer will be used to obtain grab groundwater samples, it is unnecessary to <br /> decontaminate such equipment prior to sampling. <br /> 3.2.4 Drill Cuttings and Wastewater Disposition <br /> Soil drill cuttings and decontamination water will be retained onsite in closed-top 55- <br /> gallon steel drums. The drums will be properly labeled and stored onsite pending the <br /> completion of laboratory analyses for collected soil and grab groundwater samples. The <br /> drummed soil and water wastes will be d!assified on the basis of analytical results <br /> obtained for the collected soil and groundwater samples. All concrete, asphalt, soil and <br /> wastewater will be properly disposed. <br /> 3.3 CHEMICAL ANALYSIS PROTOCOL <br /> Soil and groundwater samples will be analyzed at a California State-certified analytical <br /> laboratory. Chemical analyses for both soil and grab groundwater samples will irclude: <br /> • Total petroleum hydrocarbons as diesel/motor oil (TPH-D/MO) by EPA Method <br /> 8015 (Modified); <br /> • Total petroleum hydrocarbons as gasoline (TPH-G) by EPA Method 8015 <br /> (Modified); <br /> • Benzene, toluene, ethylbenzene and total xylenes (BTEX) by EPA Method 8020; <br /> • Volatile organic compounds (VOCs) and oxygenate compounds (tertiary butyl <br /> alcohol, MTBE, di-isopropyl ether, ethyl tertiary butyl ether, and tertiary amyl <br /> methyl ether) by EPA Method 8260; <br /> • CAM 17 metals by EPA Methods 6010/7000; <br /> 15 <br /> \\LAURA\C\Wpwnr3C%WPCCCSx95-CLTS?t995\95030dp\Work Plan\Work?4an coc <br />