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STLSubmission # 2004-01-0544 <br /> Volatile Organic Compounds by 8260B (Low Level) <br /> Treadwell & Rollo-San Francisco <br /> Attn Brian Moore <br /> ' 555 Montgomery Street, Suite 1300 <br /> San Francisco, CA 94111-2554 <br /> Phone (415)955-9040 Fax (415) 955-9041 <br /> ' Project 2597 10 Received 01/20/2004 17 25 <br /> Stockton-Carando Site <br /> BatchQ C Report <br /> Prep(s) 5030E Test(s) 8260B <br /> Laboratory Control Spike Water QC Batch#2004101123-01 07 <br /> LCS 2004101123-01 07-002 Extracted 01/23/2004 Analyzed 01/23/2004 12 41 <br /> LCSD 2004101123-01 07-003 Extracted 01/23/2004 Analyzed 01/23/2004 13 06 <br /> Compound Conc ug/L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> 1 LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Benzene 209 208 200 1045 1040 05 69-129 20 <br /> Chlorobenzene 211 224 200 1075 1120 41 61-121 20 <br /> 1,1-Dichloroethene 21 3 219 200 1065 1095 2 8 65-125 20 <br /> Toluene 209 204 200 1045 1020 24 70-130 20 <br /> Trichloroethene 221 21 5 200 1105 1075 28 74-134 20 <br /> Surrogates(s) <br /> ' 4-Bromofluorobenzene 481 480 500 96 2 960 86-115 <br /> 1,2-Dichloroethane-d4 474 474 500 94 8 948 76-114 <br /> Toluene-d8 489 453 500 1978 1906 88-110 <br /> 1 1i <br /> 1 <br /> i <br /> 1 <br /> 1 <br /> Severn Trent Laboratories, Inc 01/27/2004 16 45 <br /> STL San Francisco'1220 Quarry Lane Pleasanton CA 94566 <br /> a Pon er serem Tmm P� Tel 925 484 1919 Fax 925 484 1096*www stl-mc com*CA DHS ELAP#2496 Page 8 of 8 <br />