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STLSubmission# 2004-03-0449 <br /> Gas/BTEX Fuel Oxygenates by 8260B (C6-C12) <br /> Cambria Environmental Sonoma <br /> Attn Joe Neely <br /> 270 Perkins Street <br /> Sonoma, CA 95476 <br /> Phone (707) 933-2361 Fax (707)935-6649 <br /> Project 0813 Received 03/12/2004 1140 <br /> SAP#136186 <br /> Site 3725 Tracy Blvd ,Tracy <br /> Batch QC Re ort <br /> Prep(s) 5030B Test(s) 8260E <br /> Laboratory Control Spike Soil QC Batch#2004/03125-IA.69 <br /> LCS 2004103/25-1A 69-050 Extracted. 0312512004 Analyzed 03/25/2004 07 50 <br /> LCSD 2004103/25-1A 69.009 Extracted 03/25/2004 Analyzed, 03125/2004 08 09 <br /> Compound Conc mg1Kg Exp Conc Recovery% RPD Ctrl Limits%u Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 00497 00543 005 994 1086 88 65-165 20 <br /> Benzene 00483 00471 005 966 94 2 2 5 69-129 20 <br /> Toluene 00463 00469 005 926 938 1 3 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 449 497 500 898 99 4 70-121 <br /> Toluene-d8 491 495 500 98 2 990 81-117 <br /> Severn Trent Laboratories, Inc 03/25/2004 21 38 <br /> STL San Francisco'1220 Quarry Lane Pleasanton,CA 94566 <br /> A P�d S—.M TmM Plc Tel 925 484 1919 Fax 926 484 1096`www stl-inc corn*CA DHS FLAP#2496 Page 15 of 16 <br />