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i <br /> I <br /> NMI STL Submission# 2003-12-0040 <br /> Gas/BTEX fuel Oxygenates by 8260B <br /> TRC Alton Geosclence <br /> Attn Anju Fartan <br /> i <br /> 21 Technology Dnve <br /> Irvine, CA 92718 <br /> Phone (949) 341-7440 Fax (949)753-0111 <br /> Project 41050001 FA20 Received 12/01/2003 17 17 <br /> Conoco Phillips#11192 <br /> Site 1403 Country Club Blvd Stockton <br /> Batch QC Report <br /> Prep(s) 50306 Test(s) 8260B <br /> Laboratory Control Spike Water QC Batch#2003112108-18.64 <br /> LCS 2003/12/08-1 B 64-053 Extracted 12/08/2003 Analyzed 12/08/2003 09 53 <br /> LCSD 2003112/08-1 B 64.016 Extracted 12/DS/2003 Analyzed 12/08/2003 10 16 <br /> Compound Conc uglL Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 249 261 25 996 1044 47 65-165 20 <br /> Benzene 26 4 263 25 1056 1012 43 69-129 20 <br /> Toluene 268 265 25 1072 1060 1 1 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichlorcethane-d4 471 471 500 942 942 76-114 <br /> Toluene-d8 1471 454 1500 1942 1908 1 188-1101 <br /> Severn Trent Laboratories, Inc 12111/20()3 17 29 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton CA 94566 <br /> AA�aaer«n TeM Pk Tel 925 4841919 Fax 925 464 1096•www ull-inc corn'CA DHS ELAP#2496 Page 20 of 23 <br />