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STLSubmission 2005-07-0294 <br /> Gas/BTEX Fuel Oxygenates by 82608 <br /> TRC Alton Geoscience- Irvine <br /> I <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 07/12/2005 18 00 <br /> Conoco Phillips#4409 <br /> Site 1502 N EI Dorado St Stockton <br /> _ Batch QC Report e ! <br /> Prep(s) 50308 - Test(s) 8260E <br /> r <br /> Matrix Spike(MS 1 MSO) s Water QC Batch#2005/07122-01 07 <br /> MS/MSD Lab ID 2005-07-0381 -003 <br /> MS 2005/07/22-0107-007 Extracted 07/2212005 Analyzed 07/2212005 17 45 <br /> Dilution -100 <br /> I MSD 2005/07/22-0107-008 Extracted 07/22/2005 Analyzed 07/221200518 15 <br /> Dilution 100 <br /> Compound Conc ug1L Spk Leve Recovery% Limits% Fia s <br /> MS MSD Sample u 1L MS MSD RPD R. RPD MS MSD <br /> Benzene 418 338 130 250 1152 832 323 69 129 20 R1 <br /> Toluene 324 241 ND 250 1296 964 294 70-130 20 R1 <br /> Surrogate(s) <br /> i <br /> 1,2-Dichloroethane-d4 467 450 500 934 90 0 73-130 <br /> Toluene-d8 598 441 500 11196 882 81-114 S7 <br /> I <br /> i <br /> I <br /> Severn Trent Laboratories, Inc 07/28/2005 17 27 <br /> STL San Francisco.1220 Quarry Lane Pleasanton CA 94566 <br /> A part o15�Trent Pk Tel 925 484 1919 Fax 925 484 1096'www sd-inc corn"CA DHS FLAP#2496 Page 33 of 41 <br />