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s <br /> r <br /> Submission # 2003-08-0507 <br /> STL { <br /> Gas/BTEX Fuel Oxygenates by 82608 .� <br /> Gettler Ryan <br /> Attn Deanna Harding <br /> 6747 Sierra Court Suite J <br /> Dublin, CA 94568 <br /> Phone (925) 551-7444 Fax (925) 551-7899 <br /> Project 180198 80 Received 08/14/2003 19 09 <br /> Conoco#08671 <br /> Site 8606 Thornton Rd , Stockton, CA <br /> i <br /> I <br /> I <br /> Batch QC Report <br /> i <br /> Prep(s) 5030B Test(s) 8260FAB <br /> Matrix Spike ( MS 1 MSD } Water QC Batch#2003108127-1B 65 <br /> MW-6 >> MS Lab 1D 2003-08-0507-007 <br /> MS 2003108127-1 B 65-048 Extracted 08/27/2003 Analyzed 08/27/2003 18 48 <br /> Dilution 1 00 <br /> MSD 2003/08/27-18 65-011 Extracted 08/27/2003 Analyzed 08/27/2003 19 11 <br /> Dilution 1010 <br /> Compound Conc u IL S k Leve Recove % Limits% Fla s <br /> MS MSD Sample u /L MS MSD I RPD Rec RPD MS MSD <br /> Benzene 269 261 ND 25 1076 1044 3 0 69-129 20 <br /> Toluene 26 6 270 ND 25 1064 1080 1 5 70-130 20 <br /> Methyl tert-butyl ether 229 240 ND 25 91 6 960 4 7 65-165 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 449 486 <br /> 500 89 8 97 2 76 114 <br /> Toluene-d8 516 517 500 1033 1034 88-110 <br /> �1 <br /> 08/28/2003 14 23 <br /> Severn Trent Laboratories, Inc <br /> STL San Francisco" 1220 Quarry Lane,Pleasanton,CA 94566 page 14 of 15 <br /> A con w s"em rtem air Tel 925 484 1919 Fax 925 484 1096"www sti-inc Com'CA DHS ELAN 2496 <br />