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CALIFORNIA LABORATORY SERVICES <br /> Q <br /> 01/18/05 11 50 ' <br /> ENSR-Sacramento Project Former Unocal 5098,5400MUff d,'8cW#nCOA0425 <br /> 10411 Old Placerville Rd, Suite 210 Project Number 06940-293-100 -COC# 41081 <br /> Sacramento,CA 95827-2508 Project Manager Ben I Henmgburg <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 Lunt Notes <br /> Batch C000342-EPA 5030 Water MS <br /> Blank(CO00342-BLKI) Prepared&Analyzed 01/14/05 <br /> 1,3,5-Trimethylbenzene ND 050 pg/L <br /> Vinyl chloride ND 10 " <br /> Xylenes(total) ND 10 <br /> Surrogate 1 2-Dtchloroethane-d4 131 Id 0 131 66-135 <br /> Surrogale Toluene-d8 103 100 103 72-125 <br /> Surrogate 4-Bromofluorobenzene 102 100 102 73-125 <br /> LCS(CO00342-BSI) Prepared&Analyzed 01/14/05 <br /> Benzene 188 050 pg/L 200 940 60-I35 <br /> Chlorobenzene 197 050 „ 200 985 60-133 <br /> 1,I-Dichloroethene 198 050 200 990 42-150 <br /> Toluene 189 0 50 200 945 60-137 <br /> Trichloroethene 185 0 50 200 925 62-140 <br /> Surrogate 1,2-Dichloroethane-d4 102 100 102 66-135 <br /> Surrogate Toluene-d8— -- -- --- —10 8-- --— - -- _---- 100-- — —108---71-125- <br /> Surrogate 4-Bromofluorobenzene 10 6 100 106 73-125 <br /> LCS Dup(C000342-BSD1) — - Prepared&Analyzed 01/14/05 <br /> Benzene 200 050 µg11, 200 t00 60-135 619 25 _ <br /> Chlorobenzene 209 0 50 200 104 60-133 591 25 <br /> 1,1-Dichloroethene 215 050 200 108 42-150 823 25 <br /> Toluene 20 1 050 200 100 60-137 6 15 25 <br /> Trichloroethene 198 050 200 990 62-140 679 25 <br /> Surrogate 12-Dichloroethane-d4 127 100 127 66-135 <br /> Surrogate Toluene-d8 107 100 107 72-125 <br /> Surrogate 4-Bromofluorobenzene 105 100 105 73-125 <br /> �1 <br /> CA DOHS ELAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 www californialab com 916-638-7301 Fax 916-638-4510 <br />