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y ,11110 (� 1 Submission# 2003-12-0040 <br /> • lJ <br /> GaslBTEX Fuel Oxygenates by $2608 <br /> TRC Alton Geosctence <br /> Attn Anju Farfan <br /> 21 Technology Drive <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) 50308 Test(s) 8260E <br /> Laboratory Control Spike Water QC Batch#2003112/0 5-1C 68 <br /> LCS 2003112105-1 C 68-024 Extracted 12/05/2003 Analyzed 12/05/2003 1024 <br /> LCSD 2003112105-1 C 6 8-0 59 Extracted 12/05/2003 Analyzed 12/05/2003 1042 <br /> Compound Conc ug1L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec I RPD LCS LCSD <br /> . Methyl tert-butyl ether(MTBE) 233 216 25 932 864 76 65-165 20 <br /> Benzene 224 221 25 896 88 4 1 3 69-129 20 <br /> Toluene 21 4 21 1 25 856 84 4 14 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 476 458 500 952 91 6 76-114 <br /> Toluene-d8 1505 1461 1500 11010 922188-1101 1 <br /> • Severn Trent Laboratories, Inc 12111/2003 17 29 <br /> STL San Francisco`1220 Quart'Lane,Pleasanton CA 94566 <br /> A part or Severn Trent Pk Tel 925 484 1919 Fax 925 484 1096'www stl-mc corn'CA 17HS EIRP#2496 Page 18 of 23 <br />