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Submission#: 2002-10-0555 <br /> Gas/BTEXFuel Oxygenates by 8260B <br /> San Joaquin Company, Inc. STL San Francisco <br /> Attn.: Dai Watkins 1220 Quarry Lane <br /> Pleasanton,CA 94566 <br /> 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 Tel:(925)484-1919 <br /> 1 Phone: (510) 336-1772 Fax: (510) 336-9119 Fax:(925)484-1096 <br /> I <br /> www.sti-inc.com <br /> Project: 9902.013 Received: 10125120021$:55 www.chromalab.com <br /> C. Navarra 7500 W. 11 th St. <br /> Site: Tracy CA DHS FLAP#2496 <br /> Batch QC Report <br /> Prep(s): . 50308 Test(s);,8260FAB <br /> Method Blank Water QC Batch#2002110130-01.27 <br /> MB: 2002110130-01.27-028 Date Extracted: 10/30/2002..11:45 <br /> Compound Conc. RL Unit Analyzed Flag <br /> Gasoline ND 50 ug/L 101301200211:45 <br /> Benzene ND 0.5 ug/L 101301200211:45 <br /> Toluene ND 0.5 ug/L 101301200211:45 <br /> Ethylbenzene ND 0.5 ug/L 10/30/2002 11:45 <br /> Total xylenes ND 1.0 ug/L 10/30/2002 11:45 <br /> tent-Butyl alcohol (TBA) ND 5.0 ug/L 10/30/2002 11:45 <br /> Methyl tert-butyl ether(MTBE) ND 0.5 ug/L 10/30/2002 11:45 <br /> > .1 Di-isopropyl Ether(DIPE) ND 1.0 ug/L 10/30/2002 11:45 <br /> r <br /> Ethyl tert-butyl ether(ETRE) ND 0.5 ug/L 10/30/2002 11:45 <br /> tert-Amyl methyl ether(TAME) ND 0.5 ug/L 10/30/2002 11.45 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 97.8 76-114 % 101301200211:45 <br /> Toluene-d8 102-4 88-110 % 101301200211:45 <br /> =i <br /> :=1 <br /> a <br /> =i <br /> f <br /> , <br /> i <br /> i <br /> 11/0412002 10:37 STL San Francisco is part of Severn Trent Laboratories,Inc. Page 16 of 22 <br /> :a <br />