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COLUMBIA ANALYTICAL SERVICES, INC <br /> l <br /> Analytical Report <br /> Client EMCON Associates Date Received: 01/23/92 <br /> Project EMCON Project No G71-19 01 Work Order # SJ92-0086 <br /> Arco Facility No 2133 Sample Matrix* Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/DHS LUFT Method <br /> Ng/L (ppb) <br /> Sample Name PR-1 1271 PR_ 2 (27) BHD-1 1271 <br /> Date Analyzed 01/27/92 01/27/92 01/28/92 <br /> Anal MRL <br /> Benzene 0 5 ND ND 200 <br /> Toluene 0 5 ND ND X10.• <br /> Ethylbenzene 0 5 ND ND 240. <br />• Total Xylenes 0 5 ND ND 260 <br /> TPH as Gasoline 50 ND ND 4,600 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <br /> * Raised MRL due to high analyte concentration requiring sample dilution <br /> Approved by l�1, �(dil —Date {`?��'� _2C <br /> 2 <br /> 1921 Ringwood Avenue Son Jose California 95131 • Telephone 4081407 2400 Fox 4081407 9356 <br />