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r� <br /> COLUMBIA ANALYTICAL SERVICES,INC. <br /> Analytical Report <br /> Client ARCO Products Company Service Request: 59700930 <br /> Project 21775-234 002/TO421333 00/2168 STOCKTON Date Collected- 5/19197 <br /> Sample Matrix. Water Date Received: 5/20/97 <br /> BTEX,MTBE and TPH as Gasoline <br /> Sample Name MW-3(53) Umts ug/L(ppb) <br /> Lab Code S9700930-003 Basis NA <br /> Test Notes <br /> Prep Analysts Dilution Date Date Result <br /> Analyte Method Method MRL Factor Extracted Analyzed Result Notes <br /> TPH as Gasoline EPA 5030 CA/LUFT 50 200 NA 5/29197 38000 <br /> Benzene EPA 5030 8020 05 200 NA 5/29/97 9800 <br /> Toluene EPA 5030 8020 05 200 NA 5/29/97 620 <br /> Ethylbenzene EPA 5030 8020 05 200 NA 5/29197 1900 <br /> Xylenes Total EPA 5030 8020 05 200 NA 5/29/97 1100 <br /> Methyl ferf-Butyl Ether EPA 5030 8020 3 200 NA 5/29/97 X600 C1 <br /> C i The MRL was elevated due to high analyte concentration requiring sample dilution <br /> 1 S221020597 <br /> Page 6 <br />