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>_¢ Reportcamary <br /> EPA Method 82 (5030 Prep) <br /> — Client ATC Associates, Inc Matrix water <br /> Project EZ Serve#100878 Units ug/L <br />_ - Sample Name MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 <br /> - Analysis Date 5 Feb 2002 5 Feb 2002 6 Feb 2002 6 Feb 2002 6 Feb 2002 6 Feb 2002 <br /> Analysis Time 841 pm 9 02 pm 3 52 pm 4 14 pm 4 35 pm 457 pm <br /> Dilution Factor 01 01 01 01 01 1 01 <br /> _ Purge Volume(cc) <br /> - - Compound - E Q L Amount Found Amount Found Amount Found Amount Found Amount Found Amount Found <br /> - - - t- butanol (TBA) 5 nd nd nd nd < 50 nd <br /> _ Methyl-t-butylether (MTBE) 1 nd 24 nd nd < 10 1 3 <br /> DEEsopropyl ether(DIPE) 1 nd nd nd nd < 10 nd <br /> - - ethyl-t-butyl ether(ETBE) 1 rid nd rid nd < 10 nd <br /> t-amyl-methyl ether(TAME) 1 nd nd nd rid < 10 rid <br /> - _ Benzene 05 53 nd nd nd < 10 nd <br /> Toluene 0 5 nd nd nd nd < 10 nd <br /> _ Ethylbenzene 05 200 D nd nd nd 160 nd <br /> - m,p-Xylene 1 280 D 1 0 nd nd 510 nd <br /> -- o-Xylene 05 05 nd nd nd < 10 nd <br /> _ - 1,2-Dichloroethane 1 nd nd nd nd < 10 nd <br /> 1,2-DEbromoethane 1 nd rid rid nd < 10 nd <br /> - Surrogates Spiked QC Limits(% Rec ) Percent Recovery <br /> _ DBFM 50 ng 75-125 90 91 90 92 94 94 <br /> 1,2-DCA-d4 50 ng 62-139 80 82 82 85 87 85 <br /> Toluene -d8 50 ng 75-125 107 100 97 98 100 100 <br /> 1,4-BFB 50 ng 75-125 99 94 92 93 97 95 <br /> Analyses performed by Mark Lathrop <br /> - ATCO20102-33 <br /> - _ Page 3 of 10 <br />