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.1 r <br /> -COLUMBIA AJNALYTICAL SERVICES,INC - - <br /> Analytical Report <br /> Gent ARCO Products Companv Service Request 59600779 <br /> Project 2168 STOCKTON/21775-234 00270-19350 00 Date Collected 5/15196 <br /> Sample Matrix Water Date Received 5/16/96 <br /> Date Extracted: NA <br /> BTEX %ITBE and TPH as Gasoline <br /> EPA Methods x030/8020/California DHS LUFT Method <br /> Units ug/L(ppb) <br /> Sample Name MW-4 (58) MW-5 (55) MW-6 (47) <br /> Lab Code 59600779-004 59600779-005 S9600179-006 <br /> Date Analvzed 5/24/96 5/21/96 5/24/96 <br /> Analvte MRL <br /> TPH as Gasoline 50 64,000 43 000 99,000 <br /> Benzene 0 5 8,100 6,500 8,800 <br /> Toluene 05 8,600 5,000 12,000 <br /> Ethvlbenzene 0 5 1,600 790 1,400 <br /> 0 Total XvIenes 05 6,400 3,400 8,000 <br /> Methvl reit-Butvl Ether 3 <500* X500* <900** <br /> * Raised MRL due to high analvte concentration requiring sample dilution <br /> ** Raised MRL due to matrix interference <br /> »221060194 <br /> Page 5 <br />