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'I ® <br /> b <br /> • STL GasIBTEX Compounds by 8015M18021 Submission 2004-10-0395 <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 /> i Project C23484517B00 Received 10/12/2004 18 45 <br />■ Sara Lee-Airport Way <br /> Batch QC Report <br /> Prep(s) 5030 Test(s) 8021 B <br /> Laboratory Control Spike Water QC Batch#2004110118-01 05 <br /> LCS 2004110118-01 05-004 Extracted 10/18/2004 Analyzed 10/18/2004 08 04 <br /> LCSD 2004110118-01 05-005 Extracted 10/18/2004 Analyzed 10/18/2004 08 37 <br />' Compound Conc ug/L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Ree I RPD LCS LCSD <br /> Benzene 48 0 49 0 500 960 980 21 77-123 20 <br /> Toluene 481 477 500 962 954 0 8 78-122 20 <br /> Ethyl benzene 472 449 500 944 89 8 5 0 70-130 20 <br /> Xylene(s) 142 135 150 947 900 51 75-125 20 <br /> Surrogates{s} <br /> Trifluorotoluene 566 583 1 500 1132 11166 1 1 58-124 <br /> 1 <br /> 1 <br /> Severn Trent Laboratories, Inc 10/21/2004 12 55 <br />' STL San Francisco*1220 Quarry Lane Pleasanton,CA 94566 <br /> 1 part ol5evern Trent Pic Tel 925 484 1919 Fax 925 484 1096*www stl-mc com*CA DHS FLAP#2496 Page 20 of 26 <br />