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COLUM131A ANALYTICAL_ SERVICES INC <br /> Analytical Report <br /> Client EMCON Associates Date Received 08/06/93 <br /> Project EMCON Project No OG71-019 01 Service Request No SJ93-0977 <br /> ARCO Facility No 2133 Sample Matrix Water <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> ug/L (ppb) <br /> Sample Name PR-1 1271 PR-2 1271 BHD-1(27) <br /> Date Analyzed 08/16/93 08/16/93 08/16/93 <br /> Analyte MRL <br /> Benzene 0 5 ND ND 280 <br /> Toluene 0 5 ND ND 31 <br /> Ethylbenzene 0 5 ND ND 930 <br /> Total Xylenes 05 ND ND 950 <br /> TPH as Gasoline 50 ND ND 10,000 <br /> Sample Name BHD-2 1281 E-2 (21) E-3 (18) <br /> Date Analyzed 08/16/93 08/16/93 08/16/93 <br /> Analyte MRL <br /> Benzene 0 5 ND 45 1,800 <br /> Toluene 0 5 NO <5 69 <br /> Ethylbenzene 0 5 ND 12 670 <br /> Total Xylenes 0 S ND 5 1,400 <br /> TPH as Gasoline 50 ND 2,300 27,000 <br /> Rased MRL due to high analyte concentration requiring sample dilution <br /> • <br /> b <br /> Approved 1"' <br /> p y """ ' ' � Date <br /> 3 <br />