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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> Client EMCON Associates Date Received. 07/31/92 <br /> Project EMCON Project No G71-19 01 Work Order ## SJ92-0945 <br /> Arco Facility No 2133 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 503018020/DHS LUFr Method <br /> pg/L Ippbi <br /> Sample Name PR-1 (27) PR-2 (27) BHD-2 1281 <br /> Date Analyzed 08/04/92 08/04/92 08/04/92 <br /> Analyte MRL <br /> Benzene 05 ND ND ND <br /> Toluene 05 ND ND ND <br /> Ethylbenzene 0 5 ND NO ND <br /> Total Xylenes 0 5 ND NO ND <br /> TPH as Gasoline 50 ND ND ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> • 1 <br /> Approved by 6 ut Date V�% 2 Z <br /> 2 <br /> 1921 Ringwood Avenue • Son Jose Colifornio 95131 9 Telephone 4081437-2400 • Fox 4081437-9356 <br />