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1 <br /> CALIFORNIA LABORATORY SERVICES <br /> 07/30/04 10 25 <br /> ENSR-Sacramento Project Former Unocal 5098,5606�L X8',odCetW"9G0469 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 COC 0 1,2 <br /> Sacramento,CA 95827-2508 Project Manager Ben 1 Hentngburg <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Reporting Spice Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> etch CN05517-EPA 5030 Water MS <br /> lank(CN05517-BLK1) Prepared&Analyzed 07/15/04 <br /> 3,5-Tnmethylbenzene ND 050 pg/L <br /> myl chloride ND 10 " <br /> Xylenes(total) ND 1 0 " <br /> tihyl-isopropyl ether ND 0 50 <br /> tent-butyl ether ND 050 <br /> tent-Amyl methyl ether ND 050 " <br /> Vert-butyl alcohol ND 5 0 " <br /> 'urrogate 1,2-Dichloroethane-d4 12 2 10 0 122 66-150 <br /> Surrogate Toluene-d8 100 10 0 100 71-115 <br /> IWate 4-Bromofluorobenzene 103 100 103 73-115 <br /> (CN05517-BS1) Prepared&Analyzed 07/15/04 <br /> Benzene 215 0 50 pg/L 200 108 60-135 <br /> 1hlorobenzene 222 0 50 200 111 60-133 <br /> I-Dichloroethene 25 4 0 50 200 127 42-150 <br /> Toluene 23 9 0 50 200 120 60-137 <br /> If richloroethene 220 0 50 200 110 62-140 <br /> urrogate 12-Dichloroelhane-d4 12 0 100 120 66-150 <br /> Surrogate Toluene-d8 980 100 98 0 72-125 <br /> CICS <br /> rrogate 4-Bromofluorobenzene 105 100 105 73-125 <br /> Dup(CN05517-BSDI) Prepared&Analyzed 07/15/04 <br /> Benzene 218 0 50 pg/L 200 109 60-135 1 39 25 <br /> koluene <br /> lorobenzene 225 0 50 " 200 112 60-133 1 34 25 <br /> -Dichloroethene 25 9 050 200 130 42-150 1 95 25 <br /> 24 1 050 200 120 60-137 0 833 25 <br /> Trichloroethene 220 0 50 200 110 62-140 0 00 25 <br /> urrogate 12-Dichloroelhane-d4 12 5 10 0 115 66-150 <br /> urrogate Toluene-d8 966 100 966 71-125 <br /> Surrogate 4-Bromofluorobenzene 106 10 0 106 73-115 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 1249 Fitzgerald Road Rancho Cordoi'a CA 95742 wwm californialab com 916-63S-7301 Fax 916-635-4510 <br />