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�a <br /> ® {� STL Submission 2004-11-0824 <br /> GasIBTEX Fuel Oxygenates by 82606 <br /> TRC Alton Geosclence- 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 11/29/2004 10 55 <br /> Conoco Phillips#11192 <br /> Site 1403 Country Club Blvd , Stockton <br /> Batch QC Report <br /> Prep(s) 5030B Test(s) 8260FAB <br /> Matrix Spike ( MS/MSD) Water QC Batch#2004112!06-1A 64 <br /> MS/MSD Lab ID 2004-12-0081 -001 <br /> MS 2004/12/06-1A 64-028 Extracted 12/06/2004 Analyzed 12/06/2004 09 28 <br /> Dilution 1 00 <br /> MSD 2004/12/06-1A 64-051 Extracted 12/06/2004 Analyzed 12/06/2004 09 51 <br /> Dilution 1 00 <br /> Compound <br /> Conc ug 1L Spk Leve R covery% Limits% Flags <br /> MS MSD Sample ug/L MS MSD RPD Rec RPD MS MSD <br /> Methyl tert-butyl ether 253 274 1 26 25 962 1096 130 65-165 20 <br /> Benzene 235 256 ND 25 94 0 1024 86 69-129 20 <br /> Toluene 228 252 NO 25 91 2 100 8 100 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichloroethane-d4 475 464 500 950 92 8 73-130 <br /> Toluene-d8 446 458 500 89 2 1916 1 181-114 <br /> • Severn Trent Laboratories, Inc 12/0812004 18 43 <br /> STL San Francisco"1220 Quarry Lane,Pleasanton,CA 94566 page 24 of 25 <br /> AW Of 5"m Trent Pk Tel 925 484 1919 Fax 925484 1096`www stl-inc com•CA DHS ELAP#2496 <br />