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r• ® STL <br /> Submission 2004-10-0851 <br /> Gas/BTEX Fuel Oxygenates by 82608 <br /> TRC Alton Geoscience- Irvine <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 10/26/2004 18 00 <br /> Conoco Phillips#4409 <br /> Site 1502 N FI Dorado St, Stockton <br /> } <br /> Batch QC Repoli ~ - <br /> Prep(s) 50306 Test(s) 8260FABg <br /> Matrix Spike( MS 1 MSD) Water QC Batch#2004111102-IB 64 ; <br /> MSIMSD Lab 1D 200410-0885-,001 <br /> MS 2004111102-1 B 64-007 Extracted 11/02/2004 Analyzed 11/02/2004 12 07 <br /> Dilution 100 <br /> MSD 2004111102-113 64-029 Extracted 11/02/2004 Analyzed 1110212004 12 29 i <br /> Dilution _ 1 00' <br /> Compound Conc u IL Spk Leve Recove % Limits% Flags <br /> MS MSD Sample u 1L MS MSD RPD Rec RPD MS MSD <br /> i <br /> Benzene 226 226 ND 25 904 904 00 69-129 20 <br /> Toluene 232 243 ND 25 928 972 46 70-130 20 <br /> Methyl tert-butyl ether 237 245 ND 25 948 980 33 65-165 20 <br /> Surrogate(s) <br /> 1 2-0ichloroethane-d4 443 450 500 886 900 73-130 <br /> Toluene-d8 492 500 500 984 1000 81-114 <br /> I <br /> I <br /> Severn Trent Laboratories, Inc 11/08/2004 13 15 <br /> STL San Francisco'1220 Quarry Lane Pleasanton CA 94566 <br /> Apart of Severn Trent Pt Tel 925 484 1919 Fax 925 464 1096'www stl-inc corn`CA DHS ELAP#2496 Page 23 of 24 <br />