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® S TL Gasoline Submission #: 2002-12-0472 <br /> ® <br /> SECOR-Lafayette <br /> Attn.: Neil Doran <br /> 57 Lafayette Circle, 2nd Floor <br /> Lafayette, CA 94549-4321 <br /> Phone: (925)299-9300 Fax: (925)299-9302 <br /> Project: 050T.02926.0003 Received: 12/19/2002 16:55 <br /> Tower Park Marina <br /> ' Site: 14900 W. Highway 12 <br /> Terminous, CA <br /> ' Batch QC Report <br /> Prep(s): 5030 Test(s). 8015M <br /> Matrix Spike ( MS/MSD) Water QC Batch#2002/12/23-01.05 <br /> ' MW-4 >> MS Lab ID: 2002-12-0472-002 <br /> MS: 2002/12/23-01.05-018 Extracted: 12/23/2002 Analyzed: 12/23/2002 20:34 <br /> Dilution: 1.00 <br /> MSD: 2002/12/23-01.05-019 Extracted:12/23/2002 Analyzed: 12/23/2002 21:07 <br /> Dilution: 1.00 <br /> ' Compound Conc. u /L lSpk.Leve Raw= Limits% Flags <br /> MS MSD Sample I u /L I MS I MSD I RPD Rec. I RPD MS I MSD <br /> Gasoline 502 497 ND 500 100.4 99.4 1.0 65-135 120 <br /> ' Surrogate(s) <br /> 4-Bromofluorobenzene-FID 488 483 500 97.7 96.6 50-150 <br /> 1 <br /> 1• <br /> ' Severn Trent Laboratories, Inc. 12/26/200216:45 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> rrcm Pc Tel 925 484 1919 Fax 925 484 1096'www.stl-inc.com•CA DHS ELAP#2496 Page 8 of 7 <br />