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IC <br /> ISTL Submission 2005-04-0631 <br /> Gasoline <br /> URS-San Francisco, CA <br /> Attn Erik Skov <br />' 221 Main Street#600 <br /> San Francisco, CA 94105 <br /> Phone (415) 896-5858 Fax (415) 882-9261 <br />' Project 28066866 03000 Received 04/20/2005 16 42 <br /> Unifirst Facility-Stockton <br /> I C, <br /> Batch QC Report <br />' Prep(s) 5035 Test(s) 8015M <br /> Matrix Spike ( MS 1 MSD) Soil QC Batch#2005104123-01 01 <br />' MS/MSD Lab ID 2005-04-0574 -002 <br /> MS 2005104123-01 01-012 Extracted 04/23/2005 Analyzed 04/23/2005 14 00 <br /> Dilution _ 100 <br /> MSD 2005104123-01 01-013 Extracted 04/23/2005 Analyzed 04/23/2005 14 34 <br /> Dilution 1 00 <br /> ' Compound Conc rn Kg S k Leve Recove % Limits% Fla s <br /> MS MSD Sample mg/KMS I MSD RPD Rec RPD MS MSD <br /> Gasoline 0 376 0 387 ND 0 477 788 818 37 65-135 35 <br /> Surrogate(s) <br /> 4-Bromofluorobenzene-FID 464 463 500 928 926 58-124 <br /> L <br /> Severn Trent Laboratories, Inc 04/25/2005 14 11 <br /> STL San Francisco`1220 Quarry Lane Pleasanton CA 94566 <br /> A part 01 Severn Tient Pic Tel 925 484 1919 Fax 925 484 1096•www stl-mc com'CA DHS ELAP#2496 Page 6 of 6 <br /> L <br />