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I <br /> COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report A <br /> I <br /> Client- EMCON Associates Date Received 10/08/92 <br /> Project EMCON Project No OG71-029 01 Work Order #: SJ92-1247 <br /> Arco Facility No 2130 Sample Matrix: Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/80201DH5 LUFT Method <br /> pg/L (Ppb) <br /> Sample Name MW-1 (74) MW-2 (72) MW-3 (73) <br /> Date Analyzed 10/12/92 10/12192 10/12/92 <br /> Analyte MRL <br /> Benzene 05 2,500 90 58 <br /> Toluene 05 600 54 NO <br /> Ethylbenzene 05 210 12 ND <br /> Total Xylenes 05 470 79 1 8 <br /> TPH as Gasoline 50 11,000 950 300 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Lima <br /> ND None Detected at or above the method reporting limit <br /> Approved by1` Date nLfr <br />