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Submission # 2003-03-0696 <br /> STL <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> Gettler Ryan <br /> Attn Deanna Harding <br /> 6747 Sierra Court Suite J <br /> Dublin, CA 94568 <br /> Phone (925)551-7444 Fax (925)551-7899 <br /> Project 180138 80 Received 03/31/2003 12 00 <br /> Tosco# 6981 <br /> Site 4707 Pacific Avenue <br /> Stockton, CA <br /> 1 <br /> Batch OC Report <br /> Prep(s) 50306 Test(s) 8260FAB <br /> Laboratory Control Spike Water OC Batch#2003104111-02 62 <br /> LCS 2003104111-02 62-039 Extracted 04/11/2003 Analyzed 04/11/2003 21 39 <br /> LCSD 2003104111-02 62-001 Extracted 04/11/2003 Analyzed 04/11/2003 22 01 <br /> Compound Conc ug1L Exp Conc Recovery RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Benzene 26 5 256 250 1060 1032 2 7 69-129 20 <br /> Toluene 247 25 6 250 988 1024 36 70-130 20 <br /> Methyl Cert-butyl ether (MTBE) 326 293 1250 1304 1172 1107 65-165 20 <br /> Surrogates(s) <br /> 1 2-Dichloroethane-d4 535 530 500 107 0 106 0 76-114 <br /> Toluene-d8 512 503 500 . 1024 1006 88-110 <br /> Severn Trent Laboratories, Inc 04/1412003 17 47 <br /> STL San Francisco' 1220 Quarry Lane Pleasanton CA 94566 page 25 of 26 <br /> a s�rem 7 Pit Tel 925 484 1919 Fax 525 484 1096-www stl-inc com'CA DHS ELAPii 2496 <br />