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STLSubmission M 2003-04-0100 <br /> PNA analysis by 8270C/SIM GC/MS <br /> Geomatrix Consultants <br /> Attn.: Julie Eyre <br /> 2101 Webster Street, 12th Floor <br /> Oakland, CA 94612 <br /> Phone: (510) 663-4192 Fax: (510) 663-4141 <br /> Project: 7243.011 Received: 04/03/2003 17:46 <br /> Batch QC Report <br /> Prep(s): 3510C/8270C-SIM Test(s): 8270C-SIM <br /> Laboratory Control Spike Water QC Batch #2003/04/03-01.40 <br /> LCS 2003/04/03-01.40-004 Extracted: 04/03/2003 Analyzed: 04/03/200315:22 <br /> LCSD 2003/04/03-01.40-005 Extracted: 04/03/2003 Analyzed: 04/03/200315:48 <br /> Compound Conc. ug/L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 7.41 7.42 10.00 74.1 74.2 0.1 50-150 30 <br /> Phenanthrene 7.38 7.45 10.00 73.8 74.5 0.9 50-150 30 <br /> Pyrene 8.01 8.49 10.00 80.1 84.9 5.8 50-150 30 <br /> Chrysene 8.12 8.12 10.00 81.2 81.2 0.0 50-150 30 <br /> Benzo(a)pyrene 9.18 9.16 10.00 91.8 91.6 0.2 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 6.94 7.00 10 69.4 70.0 43-116 <br /> p-Terphenyl-d14 8.79 9.20 10 87.9 92.0 33-141 <br /> Severn Trent Laboratories, Inc. 04/04/200313:45 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of Severn Trent Pic Tel 925 484 1919 Fax 925 484 1096'www.stl-inc.com`CA DHS ELAP#2496 Page 7 of 8 <br />