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STLSubmission# 2004-12-0006 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> URS Corporation <br /> Attn Vern Elarth <br /> 2870 Gateway Oaks Drive, Suite 300 <br /> Sacramento, CA 95833 <br /> Phone (916) 679-2000 Fax (916)679-2900 <br /> Project Consultant Project No 38466452 00000 Received 12/01/2004 09 30 <br /> BP Facility No 2186 <br /> Site 3212 North California Street <br /> Prep(s) 50306 Test(s) 8260B <br /> Sample ID 02186AEFF-113004 Lab ID 2004-12-0006-3 <br /> Sampled 11130/2004 11 10 Extracted 12/2/2004 09 15 <br /> Matrix Air QC Batch# 2004112102-1A 62 <br /> Compound Conc RL Unit Conc RL Unit Dilution Analyzed Flag <br /> Gasoline ND 50 mg1m3 ND 14 ppmv 1 12/02/2004 09 15 <br /> Benzene ND 0 50 mglm3 ND 015 ppmv 1 12/02/2004 09 15 <br /> Toluene ND 0 50 mglm3 ND 013 ppmv 1 12/02/2004 09 15 <br /> Ethylbenzene ND 050 mglm3 ND Oil ppmv 1 12/02/2004 09 15 <br /> Total xylenes ND 1 0 mg/m3 ND 023 ppmv 1 12/02/2004 09 15 <br /> Methyl tent-butyl ether ND 050 rnglm3 ND 014 ppmv 1 12/02/2004 09 15 <br /> Surrogate(s) <br /> 1 2-Dichloroethane-d4 1109 72-128 % % 1 12/02/2004 09 15 <br /> Totuene-d8 1039 80-113 % % 1 12/02/2004 09 15 <br /> Severn Trent Laboratories, Inc 12/08/2004 13 51 <br /> STL San Francisco' 1220 Quarry Lane Pleasanton CA 94566 <br /> A pan a1 Se"m Trent Pk Tel 925 484 1919 Fax 925 484 1096'www sti-inc corn'CA DHS ELAP#2496 Page 4 of 8 <br />