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r <br /> I <br /> Om WE S T L <br /> Submission#: 2004-03-0004 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> TRC Alton Geoscience <br /> Attn.-. Anju Farfan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> Phone: (949) 341-7440 Fax: (949) 753-0111 <br /> Project: 41050001 FA20 Received: 02/27/2004 18:53 <br /> Conoco Phillips# 11195 <br /> Site: 16500 South Interstate 5, Lathrop <br /> Batch QC Report <br /> Prep(s): 5030B Test(s): 8260FAB <br /> Method Blank Water QC Batch#2004/03/10-2B.66 <br /> MB: 2004103110-25.66-028 Date Extracted: 03/10/2004 19:28 <br /> Compound Conc. RL Unit Analyzed Flag <br /> Gasoline ND 50 ug/L 03/101200419:28 <br /> tert-Butyl alcohol (TBA) ND 100 ug/L 03/10/2004 19:28 <br /> Methyl tert-butyl ether(MTBE) ND 2.0 ug/L 03/10/2004 19:28 <br /> Di-isopropyl Ether(DIPS) ND 2.0 ug/L 03/10/2004 19:28 <br /> Ethyl tert-butyl ether(ETBE) ND 2.0 ug/L 03/10/2004 19:28 <br /> tert-Amyl methyl ether(TAME) ND 2.0 ug/L 03/10/2004 19:28 <br /> 1,2-DCA ND 2.0 ug/L 03110/200419:28 <br /> EDB ND 2.0 ug/L 03110/200419:28 <br /> Benzene ND 0.5 ug/L 031101200419:28 <br /> Toluene ND 0.5 ug/L 031101200419:28 <br /> Ethylbenzene ND 0.5 ug/L 031101200419:28 <br /> Total xylenes ND 1.0 ug/L 03/10/2004 19:28 <br /> Ethanol NO 500 ug/L 03110/200419:28 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 104.6 76-114 % 03/10/2004 19:28 <br /> Toluene-d8 96.6 88-110 % 031101200419:28 <br /> Severn Trent Laboratories, Inc. 031111200416:06 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A pan of Severn Trenl Plc Tel 925 484 1919 Fax 925 484 1096"www.sti-ine.com'CA DHS ELAP#2496 Page 24 of 29 <br />