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• Gas1BTEX Fuel Oxygenates by 8260B Submission 2005-07-0294 <br /> TRC Alton Geoscience-Irvine <br /> Attn Antu Farfan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> Phone (949)341-7440 Fax (949)753-0111 <br /> Protect 41050001 FA20 Received 07/12/2005 18 00 <br /> Conoco Phillips#4409 <br /> Site 1502 N El Dorado St Stockton <br /> Batch QC Report <br /> r <br /> Prep(s) 50308 Test(s) 8260E <br /> Laboratory Control Spike Water QC Batch#2005/07122-01 07 <br /> LCS 2005/07122-0107-002 Extracted 07/22/2005 Analyzed 07/22/2005 14 02 } <br /> i LCSD <br /> Compound Conc ug/L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Benzene 21 8 25 0 872 69-129 20 <br /> Toluene 225 250 900 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 478 500 956 73-130 <br /> Toluene-d8 489 500 978 81-114 <br /> Severn Trent Laboratories, Inc 07/28/2005 17 27 <br /> STL San Francisco"1220 Quarry Lane Pleasanton CA 94566 <br /> A Pan of Tmnt M Tel 925 484 1919 Fax 925 484 1096"www stl-inc com'CA DHS FLAP#2496 Page 25 of 41 <br />