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STLSubmission 2004-10-0970 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> SECOR-Sacramento <br /> Attn Amy Draffan <br /> 3017 Kilgore Road, Suite 100 <br /> Rancho Cordova, CA 95670 <br /> Phone (916)861-0400 Fax (916) 861-0430 <br /> Project 77CP 60004 01 0193 Received 10/29/2004 14 50 <br /> Conoco Philips Site#11193 <br /> Site 3202 West Hammer Lane, Stockton, CA <br /> Batch QC Report <br /> Prep(s) 5030E Test(s) 82608 <br /> Matrix Spike ( MS 1 MSD} Water QC Batch#2004/1110 5-1E 68 <br /> MS/MSD Lab ID 2004-10-0955 -002 <br /> MS 2004111105-1E 68.057 Extracted 11/05/2004 Analyzed 11/05/2004 11 56 <br /> Dilution 100 <br /> MSD 2004111/05-1E 68-014 Extracted 11/05/2004 Analyzed 11/05/2004 1214 <br /> Dilution 1 00 <br /> Compound Conc u IL 5 k Recovery% Limits% Fla s <br /> MS MSD Sample u Ms MSD RPD Rec RPD MS MSD <br /> Methyl tert-butyl ether 289 255 413 251991 85 5 147 65-165 20 <br /> Benzene 261 243 ND 25 1044 972 71 69-129 20 <br /> Toluene 227 211 ND 25 908 844 73 70-130 20 <br /> Surrogate(s) <br /> 1 2-Dichloroethane-d4 515 512 500 1030 1024 73-130 <br /> Toluene-d8 500 495 1 1 500 100 0 1990 1 81-114 <br /> • <br /> Severn Trent Laboratories, Inc <br /> 03101/200515 31 <br /> STL San Francisco'1220 Quarry Lane Pleasanton CA 94566 <br /> A part 50"M Trwd Pk Tel 925 484 1919 Fax 925 484 1096`www stl-inc com'CA DHS ELAP#2496 Page 10 of 11 <br />