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COLUMBIA ANALYTICAL SERVICES, INC <br /> 4 <br /> Analytical Report <br /> Client EMCON Associates Date Received 04/24/92 <br /> Project- EMCON Project No G71-19 01 Work Order # SJ92-0494 <br /> Arco Facility No 2133 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/DHS LOFT Method <br /> Ng/L (ppb) <br /> Sample Name E--2 1221 E-4 (21) E-5 1191 <br /> Date Analyzed 05/01/92 04/29/92 05/01/92 <br /> Analyle MRL <br /> Benzene 0 5 37 730 4,300 <br /> Toluene 0 5 2 2 12 130 <br /> Ethylbenzene 0 5 3 7 110 560 <br /> Total Xylenes 0 5 6 0 200 1,700 <br /> TPH as Gasoline 50 1,200 6,300 28,000 <br /> TPH Total Petroleum Hydrocarbons <br /> - MRL -Method Repotting Limit - -- <br /> ND None Detected at or above the method reporting limit <br /> i <br /> Approved by u x Date Z <br /> 2 <br /> ��. •. .... _ter ■ _ c_ int_ r..ir_ r1c .'t. 7..I_��_ A"IQ Ann <br /> -v 'f 4 f1 f1 • C., Il A/,1't-1 0'1 5 A <br />