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r <br /> h <br /> Submission#: 2004-04-0575 <br /> STL <br /> Gas1BTEXFuel Oxygenates by 8260B (High Level) <br /> San Joaquin Company, Inc. <br /> Attn.: Dai Watkins <br /> i <br /> t 1120 Hollywood Ave, Suite 3 <br /> Oakland, CA 94602-1459 <br /> Phone: (510)336-1772 Fax: (510) 336-9119 <br /> 1 Received: 04!1912004 19:40 <br /> Project: 9902.015 <br /> C. Navarra <br /> Site: 7500W. 11th St., Tracy <br /> I <br /> Batch QC Report <br /> i <br /> Prep(s): 50308 Test(s): 8260E <br /> Laboratory Control Spike Soil QC Batch#2004104127-03.69 <br /> LCS 2004104127-03.69-037 Extracted: 04/27/2004 Analyzed: 041271200412:37 <br /> LCSD 2004104127-03.69-055 _Extracted: 04/27/2004 Analyzed: 04/27/2004 12:55 , <br /> Compound Conc. ug/Kg Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Benzene 10500 11000 10000 105.0 110.0 4.7 69-129 20 <br /> Toluene 10300 10400 10000 103.0 104.0 1.0 70-130 20 <br /> surrogates(s) <br /> 1,2-Dichloroethane-d4 225 240 250 90.0 96.0 70-121 <br /> Toluene-d8 243 249 1250 97.2 99.6 81-117 <br /> i <br /> I <br /> J <br /> Severn Trent Laboratories, Inc. 041281200414:26 <br /> STL San Francisco*1220 Quarry Lane, Pleasanton,CA 94566 <br /> Apart or sevem Imn+Pie Tel 925 484 1919 Fax 925 484 1096'www.sti-ine.com*CA DHS ELAP#2496 Page 4 of 4 <br /> i <br /> _ _ J <br />