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STLSubmission #: 2003-05-0784 <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 C Received: 05/29/2003 18:05 <br /> 7243.011 C <br /> Batch QC Report <br /> Prep(s): 3510C/8270C-SIM Test(s): 8270C-SIM <br /> Laboratory Control Spike Water QC Batch #2003/05/29-01.40 <br /> LCS 2003/05/29-01.40-020 Extracted: 05/29/2003 Analyzed: 05/29/2003 21:22 <br /> LCSD 2003/05/29-01.40-021 Extracted: 05/29/2003 Analyzed: 05/29/2003 21:49 <br /> Compound Conc. ug/L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 6.91 6.50 10.00 69.1 65.0 6.1 50-150 30 <br /> Phenanthrene 7.36 7.33 10.00 73.6 73.3 0.4 50-150 30 <br /> Pyrene 7.66 7.67 10.00 76.6 76.7 0.1 50-150 30 <br /> Chrysene 7.71 7.68 10.00 77.1 76.8 0.4 50-150 30 <br /> Benzo(a)pyrene 8.65 8.66 10.00 86.5 86.6 0.1 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 6.76 6.81 10 67.6 68.1 43-116 <br /> p-Terphenyl-d14 7.87 8.07 10 78.7 80.7 33-141 <br /> Severn Trent Laboratories, Inc. 06/03/2003 07:33 <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 9 of 9 <br />