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using EPA Method 8270C SIM_ TPHd results presented both with and without silica gel cleanup using EPA Method 3630. <br /> G Sample collected from on-site facility well W-1 by ERM-West,Inc.of Walnut Creek,California,and analyzed by Sequoia Analvtical of Walnut Creek,California,for TPHg using EPA Method 8015,TPHe <br /> using EPA Method 8015,TPHg using Standard Method 5520,and for VOCs using EPA Method 8240. <br /> 7 Samples collected by Radian International LLC of Walnut Creek.California,and analyzed by NEI/GTEL Environmental Laboratories,Inc.for VOCs using EPA Method 8260A.and for BTEX and TCE using <br /> EPA Method 80 1018020, <br /> a lsooroovlbenzene-n—propylbenzene-sec-hutvlbenzene.and naphthalene were detected in the samples,but were also detected in the travel blank submitted with the samples. <br /> Results reported as EPA Method 8010-80201EPA Method 8260A. <br /> Abbreviations: <br /> TPHg=Total petroleum hydrocarbons(TPH)quantified as gasoline. MTBE T Methly tertiary butyl ether. <br /> TPHd w/o s.g.T TPH quantified as diesel without silica gel preparation. TCE=Trichloroethene. <br /> TPHg wls.g.—TPH quantified as diesel with silica gel preparation. cis-1,2-DCE=cis-l,2-dichloroethene. <br /> TPHmo=TPH quantified as motor oil. PAHs=Polynuclear aromatic hydrocarbons. <br /> TPHc—TPH quantified as crude oil. NA_Not Analyzed. <br /> VOCs—Volatile organic compounds. ND Not Detected at or above the laboratory reponing limit. <br /> BTEX=Benzene,toluene,ethyl benzene,xylenes. <br /> Page 8 of 9 <br />