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WEI STL Submission 2004-11-0824 <br /> Volatile Organic Compounds by 8260B <br /> TRC Alton Geosclence- Irvine <br /> Attn Anju Farfan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> Phone (949) 341-7440 Fax (949)753-0111 <br /> Project 41050001 FA20 Received 11/2912004 10 55 <br /> Conoco Phillips#11192 <br /> Site 1403 Country Club Blvd , Stockton <br /> Batch QC Report <br /> Prep(s) 5030E Test(s) 8260B <br /> Laboratory Control Spike Water QC Batch#2004112106-1B 60 <br /> LCS 2004112106-1 B 60-015 Extracted 12/06/2004 Analyzed 12/06/2004 07 15 <br /> LCSD <br /> Compound Conc ug/L Exp Conc Recovery% RPDJ Ctrl Limas% Flags <br /> LCS LCSD LCS LCSD % I Rec I RPD LCS LCSD <br /> Benzene 186 20 930 69-129 20 <br /> Chlorobenzene 198 20 990 61-121 20 <br /> 1,1-Dichloroethene 180 20 900 65-125 20 <br /> Toluene 195 20 975 70-130 20 <br /> Trichloroethene 181 20 905 74-134 20 <br /> Surrogates(s) <br /> 4-Bromofluorobenzene 532 500 1064 79-118 <br /> 1,2-Dichloroethane-d4 496 500 992 78-117 <br /> Toluene-d6 1537 1 1500 11074 1 1 77-121 <br /> • Severn Trent Laboratories, Inc 12/13/2004 14 54 <br /> STL San Francisco*1220 Quarry Lane Pleasanton,CA 94566 Page 5 of 7 <br /> A par?01 Severn Trent Pic Tel 925 484 1919 Fax 925 484 1096*www sti-inc com*CA DHS ELAP#2496 <br />