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-STL - 1 f Submission #: 2003-01-0004 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> Gettler Ryan <br /> AM 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 01/02/2003 13 40 <br /> Tosco#6981 <br /> Site 4707 Pacific Avenue <br /> Stockton, CA <br /> Batch QC Report <br /> uwniui 'nn.omrnou uioin� <br /> 77 <br /> Prep(s)- 5030B r �'r n Tests) k260FAB <br /> ,,-Laboratory Control,Spike Water QC Batch #2003109110-01.27 <br /> LCS ' 2003101/10=01 27=021- `Extracted 01/10/2003 Analyzed 0111012003 '1015 <br /> LCSD 2003101110-01 27-022 Extracted 01110/2003 _ Analyzed. 01190/2003 10 42 <br /> Compound Conc ug/L Exp Conc Recovery RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCS <br /> Benzene 241 238 250 96 4 952 13 69-129 20 <br /> Toluene 236 234 250 944 936 09 70-130 20 <br /> Methyl tent-butyl ether(MTBE) 289 278 250 1156 1112 39 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 475 471 500 950 94 2 76-114 0 <br /> Toluene-d8 475 476 - 500 950 952 88-110 0 <br /> • <br /> Severn Trent Laboratories, Inc 01/28/200312 30 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton CA 94556 <br /> A pan ol5mm Tmrl Pk Tel 925 484 1919 Fax 925 484 1096'www st4-inc com-CA DHS ELAN 2496 Page 24 of 28 <br />