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STLSubmission # 2003-06-0900 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> Gettler Ryan <br /> AM Deanna Harding <br /> _ 674_7 Sierra Court SuiteJ <br /> ; _ <br /> DublinCA 94568 _ --- <br /> Phone <br /> -Phone (925) 551-7444 Fax (925) 551-7899 <br /> Project 180138 80 Received 06/27/2003 16 10 <br /> Conoco #6981 <br /> Site 4707 Pacific Ave , Stockton <br /> 2,4 <br /> ' x Batch QC Report f � <br /> x <br /> PreTests) 8260FAB <br /> ps) 50306�� � "' w, � hr �n"= <br /> 5' ' t � '� �s <br /> Labo�atory'Control Spike ` r x" Water QC Batch#2003107/09-1 H 64 <br /> � r� <br /> LCS", `h '2003107109-1 H 64-045 = Extracted 07/09/2003 Analyzed 07/09/2003 0945 <br /> LCSD 2003107109-1H 64-007 w'` Extracted 07/09/2003 f Analyzed 07/09/2003 10 07 <br /> Compound Conc ug/L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Benzene 229 229 25 91 6 916 0 0 69-129 20 <br /> Toluene 244 24 7 25 976 988 1 2 70-130 20 <br /> Methyl tert-butyl ether(MTBE) 268 258 25 1072 1032 38 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 494 486 500 988 972 76-114 <br /> Toluene-d8 491 499 500 98 2 998 88-110 <br /> Severn Trent Laboratories, Inc 07/18/2003 14 27 <br /> STL San Francisco' 1220 Quarry Lane Pleasanton,CA 94566 <br /> A pan of Severn Trent Plc Tel 925 484 1919 Fax 925 484 1096'www stl-inc corn'CA DHS ELAP#2496 Page 29 04 32 <br />