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' LABORATORY SERVICES <br /> CALIFORNIA <br /> 09/08/04 17 28 <br />' ENSR-Sacramento Project Former Unocal 5098,5606p f ora Sro er ' 110980 <br /> 10411 Old Placerville Rd,Suite 210 Project Number 06940-293-100 C COOCC# 41208 <br /> O <br /> Sacramento,CA 95827-2508 Project Manager Ben 1 Henmgburg <br />' Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Reporting Spike Source %REC RPD <br />' Analyte Result Limit Units Level Result °/"REC Limits RPD Limit Notes <br /> Batch CN06839-EPA 5030 Water MS <br />' Blank(CN06839-BLKI) Prepared&Analyzed 09/03/04 <br /> 1,3,5-Tnmethylbenzene ND 050 µg/L <br /> Vinyl chloride ND 10 " <br /> Xylenes(total) ND 10 " <br /> Surrogate 1,2-Dichloroethane-d4 136 100 136 66-135 S-GC <br /> Surrogate Toluene-d8 942 100 94.2 72-125 <br /> Surrogate 4-BromoJluorobertzene IO 8 10 0 108 73-125 <br />' LCS(CN06839-BS1) Prepared&Analyzed 09/03/04 <br /> Benzene 173 050 µg/L 200 865 60-135 <br /> hlorobenzene 174 050 200 870 60-133 <br />'4 1-Dichloroethene 236 050 200 118 42-150 0 <br /> Toluene 18 3 050 200 91 5 60-137 <br /> Trichloroethene 179 0 50 20 0 895 62-140 <br />' Surrogate 1 2-Drchloroethane-d4 117 100 117 66-135 <br /> Surrogate Toluene-d8 101 100 101 72-125 <br /> Surrogate 4-Bromofluorobenzene 987 JOG 98 7 73-125 <br /> LCS Dup(CN06839-BSDI) Prepared&Analyzed 09/03/04 <br /> Benzene <br /> 180 050 µglL 200 900 60-135 3 97 25 <br /> Chlorobenzene 176 050 200 88 0 60-133 1 14 25 <br />' 1,1-Dichioroethene 242 050 n 200 121 42-150 251 25 <br /> Toluene 191 050 200 955 60-137 428 25 <br /> Trichloroethene 185 050 200 925 62-140 330 25 <br /> Surrogate 1,2-Dwhloroethane-d4 Il 6 100 116 66-135 <br />' Surrogate Toluene-d8 104 JOG 104 72-125 <br /> Surrogate 4-Bromofluorobenzene 104 100 104 73-125 <br />' CA DOHS ELAP Accreditation/Registration Number 1233 <br /> I3249 Fitzgerald Road Rancho Cordova,CA 95742 www.californialab.com 916-638-7301 Fax- 916-638-4510 <br />