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STLSubmission #: 2003-07-0325 <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: 07/10/2003 19:30 <br /> 7243.011 <br /> Batch QC Report <br /> Prep(s): 3510C/8270C-SIM Test(s): 8270C-SIM <br /> Laboratory Control Spike Water QC Batch #2003/07/11-01.40 <br /> LCS 2003/07/11-01.40-004 Extracted: 07/11/2003 Analyzed: 07/11/200316:32 <br /> LCSD 2003/07/11-01.40-005 Extracted: 07/11/2003 Analyzed: 07/11/200316:59 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 7.02 6.86 10.00 70.2 68.6 2.3 50-150 30 <br /> Phenanthrene 7.02 6.99 10.00 70.2 69.9 0.4 50-150 30 <br /> Pyrene 7.56 8.05 10.00 75.6 80.5 6.3 50-150 30 <br /> Chrysene 7.44 7.61 10.00 74.4 76.1 2.3 50-150 30 <br /> Benzo(a)pyrene 7.95 8.04 10.00 79.5 80.4 1.1 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 6.46 6.39 10 64.6 63.9 43-116 <br /> p-Terphenyl-d14 6.20 7.05 10 62.0 70.5 33-141 <br /> Severn Trent Laboratories, Inc. 07/14/200313:52 <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 5 of 5 <br />