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CALIFORNIA LABORATORY SERVICES - <br /> 01/24/05 17 25 ' <br /> ENSR-Sacramento Project Former Unocal 5098,5606� cfoe�Totct, A0539 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 COC# I,2, fe 4 ' <br /> Sacramento,CA 95827-2508 - Project Manager Ben I I-Ieningburg <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> 1 <br /> --_-- _ __ Reporting -------Spike--Source _ - %REC ----- RPD- ---- -— <br /> Analyte Result Limit Units Level Result %REC Limos RPD Limit Notes <br /> Batch C000427-EPA 5030 Water MS <br /> Blank(CO00427-BLKI) Prepared&Analyzed 01/18/05 ' <br /> 1,3,5-Tnmethylbenzene ND 050 pg/L <br /> Vinyl chloride ND 10 <br /> Xylenes(total) ND 1 0 <br /> Surrogate 1 2-Dichloroethane-d4 121 100 122 66-135 <br /> Surrogate Toluene-d8 967 100 967 72-125 <br /> Surrogate 4-Bromofluorobenzene 132 100 131 73-125 S-11I <br /> LCS(C000427-BSI) Prepared&Analyzed 01/18/05 <br /> Benzene 172 050 gg/L 200 860 60-135 <br /> Chlorobenzene 165 - 050 200 825 60-133 <br /> 1,1-Dichioroethene 195 050 200 975 42-150 <br /> Toluene 179 050 200 895 60-137 <br /> Trichloroethene 177 050 200 88 5 62-140 <br /> Surrogate 1 2-Dtchloroelhane-d4 115 10 0 115 66-135 <br /> Surrogate Toluene-d8 103 __ _ _ 100 _ _ _ 103 72-1_25_ <br /> Surrogate 4-Bromofluorobenzene 9 61 10 0 961 73-115 <br /> LCS Dnp(CO00427-BSD1)- Prepared&Analyzed--O-I/18/05 <br /> Benzene 194 050 µg/L 200 970 60-135_ 120 25 <br /> Chlorobenzene 191 050 200 95 5 60-133 146 25 <br /> 1,1-Dichloroethene 21 9 050 20 0 110 42-150 116 25 <br /> Toluene 203 050 200 102 60-137 126 25 <br /> Trichloroethene 197 050 200 985 62-140 107 25 <br /> Surrogate 1 1-Dichloroethane-d4 11 1 10 0 111 66-135 <br /> Surrogate Toluene-d8 104 100 104 72-125 <br /> Surrogate 4-Bromofluorobenzene 967 100 967 73-125 <br /> 1 <br /> 1 <br /> CA DOHS ELAP Accreditatlon/Rcglstratlon Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www caltfornialab com 916-638-7301 Fax- 916-638-4510 <br />