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mmm STL Submission #: 2003-01-0066 <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 180288 80 Received 01/07/2003 14 20 <br /> Tosco# 11192 <br /> Site 1403 Country Club Blvd <br /> Stockton, CA <br /> Batch QC Report <br /> Test(s) 82608 <br /> Preps) 5030B - <br /> Laboratory Control Spike, Water QC Batch #2003101116-01.27 <br /> LCS 2003101116-01.27-003 Extracted 01/16/2003 Analyzed 01116/2003 11 01 <br /> LCSD 2003101/16-01 27-004 Extracted 01/16/2003 Analyzed 01116120031'1 28 <br /> Conc ug/L Exp Conc. Recovery RPD Ctrl Limits% Flags <br /> Compound <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> • Methyl tert-butyl ether(MTBE) 264 276 250 1056 1104 44 65-165 20 <br /> Benzene 231 23 4 250 924 936 13 69-129 20 <br /> Toluene 1241 241 25 0 96 4 96 4 00 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 468 468 500 936 93 6 76-114 <br /> Toluene-d8 493 478 500 986 956 88-110 <br /> 0111 712003 1 5 1 7 <br /> Severn Trent Laboratories, Inc <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 page 23 of 26 <br /> �p.nof Se"MTre,w M Tel 925 484 1919 Fax 925 464 1096.www stl-ine com'CA DHS ELAP#2496 <br />