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ATTACHMENT C <br /> FIELD AND LABORATORY PROCEDURES <br /> Chevron 9-4275, 2905 Benjamin Holt Drive, Stockton, CA <br /> iLaboratory Procedures <br /> Groundwater samples collected were analyzed for the presence of total petroleum <br /> hydrocarbons quantified as gasoline (TPHg) by EPA Method 8015, benzene, toluene, <br /> ethylbenzene, xylenes (BTEX) and the fuel oxygenate methyl tertiary butyl ether (MtBE) <br /> by EPA Method 8250B <br /> Soil Cuttings and Rinsate Water <br /> No soil cuttings were generated during drilling operations Water generated during <br /> steam cleaning and sampling of the borings was hauled offsite by Gregg Drilling for <br /> disposal at an appropriate disposal facility <br />