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Submission 2005-05-0813 <br /> mdi1� ST <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> TRC Alton Geoscience- Irvine <br /> Attn An1u Farfan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> Phone (949) 341-7440 Fax (949)753-0111 <br /> Project 41050001 FA20 Received 05/31/2005 16 13 <br /> Conoco Phillips # 11192 <br /> Site 1403 Country Club Blvd, Stockton <br /> r Batch QC Report <br /> Preps)_50308 ' �` �� `_ `_ ����� - Test(s) 8260B <br /> Laboratory Control Spike� n W - � Water - �- d _ � QC Batch#2005/06/10-'1 A 62 = <br /> � e <br /> LCS 2005106110-1A 62-038 Extracted 06/10/2005 - Analyzed 06/10/2005 11 08 <br /> LCSD <br /> Compound Conc ug/L Exp Conc Recovery % RPD Ctrl Limits % Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> t� Methyl tert-butyl ether(MTBE) 279 25 1116 65-165 20 <br /> Benzene 263 25 1052 69-129 20 <br /> Toluene 282 25 1128 70-130 20 <br /> Surrogates(s) <br /> 1 2-Dichloroethane-d4 476 500 952 73-130 <br /> Toluene-d8 1448 500 1896 81-114 <br /> • <br /> Severn Trent Laboratories, Inc 06/20/2005 18 37 <br /> STL San Francisco"1220 Quarry Lane Pleasanton CA 94566 <br /> A part or seas n r���Pit Tel 925 484 19'19 Fax 925 484 1096'www stl-inc corn'CA DHS FLAP#2496 Page 22 of 32 <br />