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COLUMBIA ANALYTICAL SERVICES, INC <br /> Analytical Report <br /> Client EMCON Associates Date Received: 04/30/93 <br /> Project- EMCON Project No OG71-019 01 Service Request No : SJ93-0591 <br /> ARCO Facility No 2133 Sample Matrix Water <br /> i <br /> I <br /> I <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> /fgfL (ppb) <br /> I <br /> Sample Name E-10 (22) E-11 (23) E-12 [221 <br /> Date Analyzed 05/12/93 05/12/93 05/12/93 <br /> AnAn_ alyte MRL <br /> Benzene 05 2,500. 530 27 <br /> Toluene 0 5 640 <100 <2. 0' - <br /> Ethylbenzene 0 5 1,400 150 <1 00 <br /> Total Xylenes 0 5 4,400 730 <2 "' <br /> TPH as Gasoline 50 28,000 28,000 520 <br /> TPH Total Petroleum Hydrocarbons <br /> MRL Method Reporting Limit <br /> • Raised MRL due to high analyte concentration requiring sample dilution <br /> "" Raised MRL due to matrix interference <br /> Approved by4��&Aa Date _ A10 V Z4 /��-3 <br /> 6 <br /> 1921 Ringwood Avenue 9 Son Jose Coliforrno 95131 a Telephone 408/437 2400 • Fox 408/437 9356 <br />