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v <br /> S T L <br /> Submission # 2004-09-0240 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> Stratus Environmental Inc <br /> Attn Jay Johnson <br /> 3330 Cameron Park Drive, Suite 550 <br /> Cameron Park, CA 95682 <br /> Phone (530)676-6007 Fax (530) 676-6005 <br /> Project BP Facility No 6100 Received 09/09/2004 09 40 <br /> Site Petterson Pass Rd <br /> Batch QC Report <br /> Prep(s) 50306 Test(s) 82606 <br /> Laboratory Control Spike Water QC Batch # 2004109110-1 B 64 <br /> LCS 2004/09110-1 B 64-051 Extracted 09/10/2004 Analyzed 09/10/2004 06 51 <br /> LCSD 2004109110-1 B 64-014 Extracted 09/10/2004 Analyzed 09/10/2004 07 14 <br /> Compound Conc ug/L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Methyl tert-butyl ether(MTBE) 233 229 25 932 916 1 7 65-165 20 <br /> Benzene 261 249 25 1044 996 4 7 69-129 20 <br /> Toluene 26 3 25 6 25 1052 1024 2 7 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 489 497 500 978 994 72-128 <br /> Toluene-d8 521 535 500 1042 1070 80-113 <br /> • <br /> Severn Trent Laboratories, Inc 09121!2004 16 09 <br /> STL San Francisco*1220 Quarry Lane, Pleasanton CA 94566 <br /> A part or sevam Tram Plc Tel 925 484 1919 Fax 925 484 1096*www stl-inc corn*CA DHS FLAP#2496 Page 12 of 16 <br />