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•^Y <br /> COLUMBIA ANALYTICAL SERVICES, INC. <br /> Analytical Report <br /> Client: EMCON Associates Date Received. 1010$192 <br /> Project: EMCON Project No OG71-029 01 Work Order#t: 5.192-1247 <br /> Arco Facility No 2130 Sample Matrix- Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/$020/DHS LUFT Method <br /> pg/L (ppb) <br /> Sample Name MW-4 (74) MW-5 (76) Methq4 MethBE nk <br /> Date Analyzed 10/13/92 10/13/92 10/12/92 <br /> Anal-cte MRL <br /> . Benzene 0 5 26 59 ND <br /> Toluene 05 3 5 34 ND <br /> Ethylbenzene 05 ND 2 1 ND <br /> Total Xylenes 05 22 45 ND <br /> TPH as Gasoline 50 260 460 ND <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> ND Norte Detected at or above the method reporting limit <br /> Approved by 'U Date <br /> h <br />