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STL <br /> Submission# 20$03-09.0413 <br /> ©® <br /> Gas/BTEX/MTBE by 8260B (C6-C12) <br /> Cambria Environmental Emeryville <br /> Attn Cynthia Vasko <br /> 5900 Hollis Street, Ste A <br /> Emeryville, CA 94608 <br /> Phone-(510)-420=3344=Fax=(510)=420=9170 <br /> Project 245-0783-003 Received 09111/2003 08 06 <br /> 98996184 <br /> Site 2575 Country rIiih Rlvri Storkton <br /> Batch QC Report <br /> Prep(s) 5030B Test(s) 8260FAB <br /> Matrix Spike ( MS 1 MSD ) Water QC Batch#2003109116-213 64 <br /> MID 2 >> MS Lab ID 2003-09-0413-003 <br /> MS 2003109116-26 64-035 Extracted 09117/2003 Analyzed 09/1712003 03 35 <br /> Dilution 100 <br /> MSD 2003109116-26 64-057 Extracted 09/17/2003 Analyzed 09/17/2003 03 57 <br /> Dilution 100 do <br /> Compound Conc ug/L Spk Leve Recovery% Limits% Fla s low <br /> MS MSD Sample u /L MS MSD RPD Rec RPD MS MSD <br /> Benzene 256 267 ND 25 1024 106B 42 69-129 20 <br /> Toluene 293=-29 1� ND �25� 1117-2� 1164 0-7� -70-130=-20•; <br /> Methyl tert-butyl ether 634 564 264 25 1480 1200 209 65-165 20 mso <br /> Surrogate(s) <br /> 1 2-Dichloroethane-d4 501 453 500 1002 906 76-130 <br /> Toluene-d8 527 502 500 105 4 1100 3 1 78-115 <br /> Severn Trent Laboratories, Inc 09/1812003 120 <br /> STL San Francisco`1220 Quarry Lane,Pleasanton,CA 94566 <br /> A pM d S� Tr*m Pk Tel 925 484 1919 Fax 925 484 1096'www stl-inc com"CA DHS FLAP#2496 Page 11 of 12 <br />