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STLSubmission 2004-12-0249 <br /> Gas/BTEX Fuel Oxygenates by 82608 (C6-C12) • <br /> Cambria Environmental Emeryville <br /> Atin Cynthia Vasko <br /> 5900 Hollis Street, Ste A <br /> Emeryville, CA 94608 <br /> Phone-(510)-420=3344-Fax-(510)-420=9170 <br /> Project 246-0783-003 Received 12/06/2004 09 40 <br /> 98996184 <br /> Site 2575 Country Club Blvd , Stockton <br /> Batch QC Report <br /> Prep(s) 5030B Test(s) 82606 <br /> Matrix Spike ( MS 1 MSD ) Water QC Batch#2004/12110-1A 64 <br /> MSIMSD !_ab ID 2004-12-0254-001 <br /> MS 2004112110-1A 64-032 Extracted 12110/2004 Analyzed 12/10/2004 09 32 <br /> Dilution 100 <br /> MSD 2004112!10-1A 64-054 Extracted 12/10/2004 Analyzed 12/10/2004 09 54 <br /> Dilution 1 00 <br /> Compound Conc u /L k Leve Recove % Limits% Flags <br /> MS MSD Sample u /L M5 MSD RPD Rec RPD MS MSD <br /> Methyl tort-butyl ether 244 257 ND 25 976 1028 52 65-165 20 <br /> Benzene 238 24 4 ND 25 952 97 6 25 69-129 20 <br /> - <br /> i �7oluene 234— 24-4— ND —25T 936— 976- -42— 70-130-20— <br /> Surrogate(s) <br /> b=i31) "20-5urrogate(s) <br /> 1 2-Dichloroethane-d4 441 443 500 882 886 73-130 <br /> Toluene-d8 460 454 f 1 500 92 0 1908 81-114 <br /> Severn Trent Laboratories, Inc 12/15/2004 10 <br /> STL San Francisco'1220 Quarry Lane Pleasanton,CA 94566 <br /> A pad d S—em Teem PM Tel 925 484 1919 Fax 925 4841096'www stl-mc corn'CA DHS EL.AP#2496 Page 12 of 13 <br />