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r-Irl-Ir Submission # 2003-02-0022 <br /> S L <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> Gettler Ryan <br /> Attn Dave Vossler <br /> 1364 North McDowell Road <br /> Petaluma, CA 94954 <br /> Phone (707) 789-3252.Fax (707)789-3218 <br /> Project Tosco#11192 Received 01/31/2003 16 00 <br /> -- — <br /> ------Site—Country Club-Blvd _ <br /> Stockton CA <br /> Batch QC Report <br /> Prep(s) 5030B Test(s) 8260FAB <br /> Laboratory Control Spike Water QC Batch #2003/02106-01 27 <br /> LCS 2003102106-01 27-003 Extracted 02/06/2003 Analyzed 02/06/2003 10 08 <br /> LCSD 2003/02/06-01 27-004 Extracted 02/06/2003 Analyzed 02/06/2003 10 37 <br /> Compound Fj Conc ug/L. Exp Conc Recovery RPD Ctrl Limas% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Benzene 206 20 3 250 82 4 81 2� 1 5 69-129 r 20 <br /> Toluene 220 x 22 0 250 880 880 0 0 70-130 20 <br /> Methyl tent-butyl ether(MTBE) 243 , 247 250 97 2 988 1 6 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 514 525 500 1028 1050 76-114 <br /> Toluene-d8 1501 462 500 11002 1964 88-110 <br /> Severn Trent Laboratories, Inc 02r07120031� <br /> STL San Francisco"1220 Quarry Lane Pleasanton CA 94566 <br /> AP-t V S-,,T� LPI. Tel 925 484 1919 Fax 925 484 1096`www stl-Inc com'CA DHS ELAP*2496 Page 5 of 6 <br />