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STLSubmission #: 2003-06-0483 <br /> PNA analysis by 8270C/SIM GC/MS <br /> Geomatrix Consultants <br /> Attn.: Martin Bloes <br /> 2101 Webster St.,12 th Floor <br /> Oakland, CA 94612 <br /> Phone: (510) 663-4148 Fax: (510) 663-4141 <br /> Project: 7243.011 Received: 06/16/2003 12:50 <br /> Batch QC Report <br /> Prep(s): 3510C/8270C-SIM Test(s): 8270C-SIM <br /> Laboratory Control Spike Water QC Batch #2003/06/16-01.40 <br /> LCS 2003/06/16-01.40-012 Extracted: 06/16/2003 Analyzed: 06/18/200314:06 <br /> LCSD 2003/06/16-01.40-013 Extracted: 06/16/2003 Analyzed: 06/18/200314:33 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 6.25 6.20 10.00 62.5 62.0 0.8 50-150 30 <br /> Phenanthrene 6.48 6.57 10.00 64.8 65.7 1.4 50-150 30 <br /> Pyrene 7.14 7.31 10.00 71.4 73.1 2.4 50-150 30 <br /> Chrysene 7.23 7.44 10.00 72.3 74.4 2.9 50-150 30 <br /> Benzo(a)pyrene 7.74 8.03 10.00 77.4 80.3 3.7 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 5.59 5.66 10 55.9 56.6 43-116 <br /> p-Terphenyl-d14 6.92 7.24 10 69.2 72.4 33-141 <br /> Severn Trent Laboratories, Inc. 06/19/200316:49 <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 />