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STLSubmission# 2004-12-0365 <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 12/10/2004 09 45 <br /> BP Facility No 2186 <br /> Site 3212 North California Street <br /> Prep(s) 50308 Tests} 8260B <br /> Sample ID 02186AEFF-120904 Lab ID 2004-12-0365-3 <br /> Sampled 12/09/2004 1100 Extracted 12/11/2004 13 31 <br /> Matrix Air QC Batch# 2004112111-1 C 62-Compound Conc RL Unit Conc RL Unit Dilution Analyzed Flag <br /> Gasoline ND 50 mg/m3 ND 14 ppmv 1 12/111200413 31 <br /> Benzene ND 0 50 mglm3 ND 015 ppmv 1 12/1112004 13 31 <br /> Toluene ND 0 50 mg/m3 ND 013 ppmv 1 12111/200413 31 <br /> Ethylbenzene ND 0 50 mg1m3 ND Oil ppmv 1 12/11/2004 13 31 <br /> Total xylenes ND 10 mg/m3 ND 023 ppmv 1 12111/200413 31 <br /> Methyl Cert-butyl ether ND 0 50 mg/m3 ND 014 ppmv 1 12/11/2004 13 31 <br /> surrogate(s) <br /> 1,2-Dichloroethane-d4 1239 72-128 % % 1 12/11/2004 13 31 <br /> Toluene-d8 1033 80-113 % % 1 12/11/2004 13 31 <br /> Severn Trent Laboratories, Inc 12/28/2004 1226 <br /> STL San Francisco"1220 Quarry Lane,Pleasanton CA 94566 <br /> A part nl Severn Tml PM Tel 925 484 1919 Fax 925 484 1096'www stl-inc corn'CA DHS FLAP#2496 Page 4 of 7 <br />