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� f <br /> 4 <br /> Site Background Information - Ripon Farm Service <br /> r Page 10 of 10 <br /> After collection, the samples were properly labeled,placed in a chilled container, and transported <br /> under chain-of-custody to Cal Tech Environmental Laboratories (CT5EL), a California Department <br /> of Health Services (DHS)-certified laboratory. The samples were analyzed for: <br /> • TotaI petroleum hydrocarbons quantified as gasoline (TPH-g) and diesel (TPH-d) in <br /> accordance with EPA Methods 8015M; <br /> • Benzene,toluene,ethylbenzene and total xylenes (BTEX)in accordance with EPA Method <br /> 8260B; and <br /> • Fuel additives di-isopropyl ether(DIPE),ethyl tertiary-butyl ether(ETBE),methyl tertiary- <br /> butyl ether (MTBE), tertiary-amyl methyl ether (TAME), tertiary butanol (TBA), <br /> 1,2-dichloroethane (1,2-DCA) and ethylene dibromide (EDB) in accordance with EPA <br /> Method 8260B. <br /> A total of four grab ground water samples were analyzed and the laboratory report for the samples <br /> detected no hydrocarbon impact to ground water at the western edge of State Highway 99. <br /> 3 <br /> ,k <br /> 1 <br /> k <br /> r !, <br /> 4 <br /> } <br /> Advanced GeoEnvironmental,Inc. <br /> [ <br />