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Submission 2004-10-0395 <br /> S T <br /> Gas/BTEX Compounds by 8015M18021 <br />' Philip Services- Illinois <br /> Attn Mark Milward <br /> 210 W Sand Bank Road <br /> Colombia, IL 62236 <br /> Phone (618) 281.1547 Fax (618)281-5120 <br /> Project C23484517B00 Received 10/12/2004 18 45 <br /> Sara Lee-Airport Way <br /> t <br /> Batch QC Report <br /> Prep(s) 5030 Test(s) 8021 B <br /> laboratory Control Spike, Water QC Batch #2004110120-01 05 <br /> LCS 2004110120-01 05-022 Extracted 10/20/2004 Analyzed 10120/2004 18 23 <br /> LCSD 2004/10/20-0105-023 Extracted 10/20/2004 Analyzed 10/20/2004 18 56 <br /> ' Compound Conc ug/L Exp Conc Recovery% RPD Ctrl Limits % Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Benzene 51 7 52 3 500 1034 1046 1 2 77-123 20 <br /> Toluene 509 51 9 500 1018 1038 1 9 78-122 20 <br /> Ethyl benzene 516 50 8 500 1032 1016 1 6 70-130 20 <br /> Xylene(s) 154 154 150 1027 1027 0 0 75-125 20 <br /> ' <br /> Surrogates(s) <br /> TnFluorotoluene 502 506 500 1004 101 2 58-124 <br /> I <br /> f <br /> Severn Trent Laboratories, Inc 16/21/2004 12 55 <br /> STL San Francisco`1226 Quarry Lane, Pleasanton CA 94566 / <br /> a pan m5ew.m rrwq Fnc Tel 925 484 1919 Fax 925 4154 1096'www stl-inc com'CA DHS ELAP#2496 Page 24 of 26 <br />