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CALIFORNIA LABORATORY SERVICES <br /> - 08/03/04 10 27 f <br /> ENSR-Sacramento Project Former Unocal 5098,5606��c�f re��o�er 'CNG0820 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 COC# i,2 <br /> Sacramento,CA 95827-2508 Project Manager Ben 1 Heningburg <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %R-EC Limits RPD Limit Notes <br /> Batch CN05811 -EPA 5030 Water MS <br /> Blank(CN05811-BLK1) Prepared&Analyzed 07/26/04 <br /> 1 1 2-Trichloroethane ND 050 gglL <br /> Trichloroethene ND 050 " <br /> Trichlorofluoromethane ND 050 <br /> 1,2 3-Tnchloropropane ND 050 " <br /> t,2,4-Trimethylbenzene ND 050 <br /> 1,3 5-Trimethylbenzene ND 050 " <br /> Vinyl chloride ND 10 ' <br /> Xylenes(total) ND 10 " <br /> Surrogate 1 2-Dichloroethane-d4 108 100 108 66-135 ' <br /> Surrogate Toluene-d8 108 100 108 71-125 <br /> Surrogate 4-Bromghuorobenzene 106 100 106 73-125 <br /> LCS(CN05811-BS1) Prepared&Analyzed 07/26/04 <br /> Benzene 19 5 0 50�gg/L 20 0 97 560=135 - <br /> Chlorobenzene 204 050 200 102 60-133 --' <br /> 175 T-— 050 "- ---20 0----- —87 5--42=150— - -- --- -—- — - - <br /> Toluene 203 050 200 102 60-137 <br /> Trichloroethene 195 050 200 975 62-140 <br /> Surrogate- 12-Drchloroethane-d4 101 10_0 101 66-135 <br /> SurrogateToluene-d8 a 103 100 J y 103 72-125 <br /> Surrogate 4-Bromoluorobenzene 101 100 101 73-115 ' <br /> LCS Dup(CN05811-BSD1) Prepared&Analyzed 07/26/04 <br /> Benzene 183 050 gg/L 200 91 5 60-135 635 25 <br /> Chlorobenzene 19 t 050 200 95 5 60-133 658 25 <br /> 1,1-Dichloroethene 170 050 200 85 0 42-150 290 25 <br /> Toluene 19 2 050 200 96 0 60-137 557 25 <br /> Trichloroethene 19 1 050 200 95 5 62-140 207 25 <br /> r <br /> C 4 DOHS Ei kP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www californialab coin 916-638-7301 Fax 916-638-4510 ' <br />