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1455 McDowell Blvd North Ste D <br /> 4DFAXPetaluma CA 94954 <br /> Sequoia (707)792 186" <br /> r Analytical uw <br /> (707) 2 <br /> wss.quwalabslahs cocoin <br /> IDu <br /> filer-Ryan-Dublin Project UnocalKeported <br /> 7 Sierra C t,Suite J PrglectNumber C-Sparge Tcst/0187,Stockton,CA <br /> blin C,A,94568 Project Manager Paul Le Cheminant 08/07/01 15 10 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015NU8020M - Quality Control <br /> Sequoia Analytical - Petaluma <br /> Reporting Spil.c Source %RhC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1070618-EPA 5030 waters <br /> Blank(1070618-BLK1) Prepared&Analyzed 07/25/01 <br /> Gasoline(C6-C12) ND 50 ugll <br /> Benzene ND 0 50 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) <br /> ND 0 50 " <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a a a-Trilluorotoluem, 319 300 106 65-135 <br /> Surrogate 4-Bromofluorohenzene 296 300 987 65-135 <br /> Blank(1070618-BLK2) Prepared&Analyzed 08/02/01 <br /> Gasoline(C6-C12) ND 50 ug/1 <br /> Benzene ND 050 <br /> enc ND 050 " <br /> lbenzcne ND 050 ; <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 25 <br /> 325 300 108 65-135 <br /> Surrogate aaa-Trifluorodoluene 101 65-135 <br /> Surrogate 4-BromoJluorohenzene 304 300 <br /> I,CS(1070618-BSI) Prcpared&Analyzed 07/25/01 <br /> Gasoline(C6-C 12) 2280 50 ug/I 2750 fit 9 65-135 <br /> Benzene <br /> 41 6 050 33 0 126 65-135 <br /> Toluene 191 050 198 965 65-135 <br /> Ethylbenzene 470 050 460 102 65-135 <br /> Xylenes(total) 229 050 230 996 65-135 <br /> Methyl tent-butyl ether <br /> 529 2 5 52 5 101 65-135 <br /> Surrogate a 14a-Trifluorotoluene 356 N 300 119 65-135 <br /> Surrogate 4-BiomofJu01obe-ene 311 300 104 65-135 <br /> AdIk uola Analytical-Petaluma The resuhd to thrs report appltl to the samples analyzed in ac coidance wuh the chain of <br /> cintodv document Thu analytical report must he reproduced in its entirett <br /> Page 4 of 6 <br />