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ler <br /> mmm STL <br /> Submission 2005-07-0294 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> TRC Alton Geoscience- Irvine <br /> Attn Anlu 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 <br /> Prep(s) 503013 F Test(s) 82608 <br /> Matrix Spike(MS I MSD) - Water QC Batch#'2005/07123.2A 62 <br /> MS/MSD Lab iD '-'2005-07-0360-001 <br /> MS 2005107123-2A 62-027 Extracted 07123/2005 Analyzed 07123/2005 19 27 <br /> b <br /> Dilution 100 <br /> MSD 2005{07!23-2A 62-053 Extracted 07/23/2005 Analyzed 07/23/2005 19 53 <br /> Dilution 100 <br /> Compound Conc ug!L Spk Leve Recovery% Limits% ��- Fiags <br /> MS MSD Sample u IL I MS MSD I RPD Rec RPD Ms MSD <br /> Methyl tert-butyl other 285 291 052 25 1119 1143 21 65-165 20 <br /> Benzene 267 267 ND 25 1068 1068 00 69-129 20 <br /> Toluene 287 285 ND 25 1148 1140 07 70-130 20 <br /> Surrogate(s) <br /> 1 2-Dichloroethane-iJ14 496 515 500 993 1031 73-130 <br /> Toluene-d8 492 481 1 500 1985 1961 1 81-114 <br /> • Severn Trent Laboratories, Inc 07/28/2005 17 27 <br /> STL San Francisco*1220 Quarry Lane Pleasanton CA 94566 <br /> A pt m spm Tim Pk Tel 925 484 1919 Fax 925 484 1096*www stl-inc Com*CA DHS FLAP#2496 Page 37 of 41 <br />