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1 <br /> CALIFORNIA LABORATORY SERVICES <br /> 09/08/04 12 00 <br /> ENSR-Sacramento Project Former Unocal 5099,5606 P�o�f*aAry e��a�ekt t, H0981 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 C COC# 41207 <br /> Sacramento,CA 95827-2508 Project Manager Ben i Heningburg <br /> Volatile Organic Compounds by EPA Method 8260B-Quality Control <br /> Reporting Spike Source %REC RPD <br /> lAnalyteResult Limit /!nits Level Result %REC Limits RPD Limit Notes <br /> - <br /> Batch CN06901 EPA 5030 Water MS <br /> Blank(CN06901-BLKI) Prepared&Analyzed 09/07/04 <br />' 1,3,5-Trimethylbenzene ND 050 µg11, <br /> Vinyl chloride ND 10 " <br /> m,p-Xylene ND 050 " <br /> o-Xylene 262 050 N B <br /> Surrogate 1 2-Drchloroethane-d4 118 100 118 66-135 <br /> Surrogate Toluene-d8 941 10 0 941 72-125 <br />' Surrogate 4-Bromofluorobenzene 109 100 109 73-125 <br /> LCS(CN06901-BSI) Prepared&.A nniv7erl 09/07/04 <br /> Benzene 195 050 gg/L 200 975 60-135 <br /> hlorobenzene 190 050 200 950 60-133 <br /> 10 1-DEchloroethene 235 050 n 200 118 42-150 <br /> Toluene 208 0 50 200 104 60-137 <br /> Trichloroethene 203 050 200 102 62-140 <br /> Surrogate 1,2-Dtchloroethane-d4 109 " 100 109 66-135 <br /> Surrogate Toluene-& 101 100 101 71-125 <br /> Surrogate 4-Bromofluorobenzene 105 100 105 73-125 <br />' LCS Dup(CN06901-BSD 1) Prepared&Analyzed 09/07/04 <br /> Benzene 180 050 µg11. 200 900 60-135 800 25 <br /> Chlorobenzene 179 050 200 895 60-133 596 25 <br /> I 1,1-Dichloroethene 218 050 200 109 42-150 751 25 <br /> Toluene 194 050 200 970 60-137 697 25 <br /> Trichloroethene 199 050 200 945 62-140 714 25 <br />' Surrogate 12-Dtchloroethane-d4 106 100 106 66-135 <br /> Surrogate Toluene-d8 10 0 100 100 72-125 <br /> Surrogate 4-Bromofluorobenzene 106 100 106 73-115 <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 /> I <br />