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STLSubmission: 2445-46-0561 <br /> Fuel Oxygenates by 8260B <br /> = San Joaquin Company, Inc- <br /> Attn.: Dai Watkins <br /> 1` 1120 Hollywood Ave, Suite 3 <br /> yw <br /> Oakland, CA 94602-1459 <br /> Phone: (510) 336-1772 Fax: (510)336-9119 <br /> Ji Project: 9902.015 Received: 06/21/2005 09:12 <br /> r '+ C. Navarra <br /> Site: 7500W. 11th St., Tracy <br /> Batch:QC Report <br /> ..._... . <br /> Prep(s): 5030B Tests) 82506 <br /> Matrix Spike S'MS I MSD ) Water QC Batch#2005106134 ... 65 <br /> MSIMSD Lab ID: 2005-06=0604 00Z"j <br /> MS.: 2005106130-01:65-054 Extracted;06/30/2005 Analyzed. 06/30/2005 13.54,-;' <br /> Dilution: <br /> MSD: 200.5106130=01:65-020 Eztracted:.0613012005 Analyzed, 06130120051426::' <br /> Dilutlon: 1 001: <br /> Compound Conc. ug/L Spk.Level Recovery% Limits% Flags <br /> MS MSD Sample ug/L MS MSD RPD Rec. RPD MS MSD <br /> F .i <br /> E:f Methyl tert-butyl ether 40.9 31.4 9.26 25.0 126.6 88.6 35.3 65-165 20 R1 <br /> Benzene 26.1 21.0 ND 25.0 104.4 84.0 21.7 69-129 20 R1 <br /> Toluene 30.8 23.6 ND 25.0 123.2 94.4 26.5 70-130 20 R1 <br /> >'=1 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 491 475 500 98.2 95.0 73-130 <br /> Toluene-d8 568 515 500 113.6 103.0 81-114 <br /> _J <br /> i <br /> ":J <br /> ;•:.I Severn Trent Laboratories, Inc. 07/01/2005 16:34 <br /> STL San Francisco"1220 Quarry Lane,Pleasanton,CA 94566 <br /> Apan of Severn T-1 P4c Tel 925 484 1919 Fax 925 484 1096`www.sti-inc.com'CA DHS ELAP#2496 Page 7 of 8 <br /> h y� <br /> i.';I <br />