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Submission 2004-08-0291 <br /> STL <br /> `! �r <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 410500011FA20 Received 08/11/2004 17 16 <br /> Conoco Phillips#11192 <br /> Site 1403 Country Club Boulevard, Stockton <br /> Batch QC Report <br /> Prep(s) 50306 Test(s) 8260E <br /> Laboratory Control Spike Water QC Batch#2004/08/16-1 B 60 <br /> LCS 2004108116-1 B 60-005 Extracted 08/16/2004 Analyzed 08/16/2004 08 05 <br /> LCSD 2004108116-1B 60-039 Extracted 08/16/2004 Analyzed 08/16/2004 08 39 <br /> Compound Conc ug/L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Chlorobenzene 202 21 0 20 101 0 1050 39 61-121 20 <br /> 1,1-Dichloroethene 187 200 20 935 1000 67 65-125 20 <br /> Trichloroethene 179 189 20 895 945 54 74-134 20 <br /> Surrogates(s) <br /> 4-Bromofluorobenzene 526 513 500 1052 1026 79-118 <br /> 1 2-Dichloroethane-d4 479 505 500 958 101 0 78-117 <br /> Toluene-d8 490 503 500 1980 100 6 1 77-121 <br /> Severn Trent Laboratories, Inc 08/24/2004 11 510 <br /> STL San Francisco*1220 Quarry Lane Pleasanton,CA 94566 <br /> A pan of Severn Trent Pic Tel 925 484 1919 Fax 925 484 1096*www stl-inc corn*CA DHS ELAP#2496 Page 7 of 8 <br />