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STLSubmission #: 2003-06-0352 <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 TC Received: 06/11/2003 15:50 <br /> Batch QC Report <br /> Prep(s): 3510C/8270C-SIM Test(s): 8270C-SIM <br /> Laboratory Control Spike Water QC Batch #2003/06/11-01.40 <br /> LCS 2003/06/11-01.40-020 Extracted: 06/11/2003 Analyzed: 06/12/200319:37 <br /> LCSD 2003/06/11-01.40-021 Extracted: 06/11/2003 Analyzed: 06/12/2003 20:03 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 7.34 7.54 10.00 73.4 75.4 2.7 50-150 30 <br /> Phenanthrene 7.45 7.68 10.00 74.5 76.8 3.0 50-150 30 <br /> Pyrene 7.49 9.26 10.00 74.9 92.6 21.1 50-150 30 <br /> Chrysene 7.98 8.06 10.00 79.8 80.6 1.0 50-150 30 <br /> Benzo(a)pyrene 9.06 8.95 10.00 90.6 89.5 1.2 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 7.58 7.81 10 75.8 78.1 43-116 <br /> p-Terphenyl-d14 8.23 9.56 10 82.3 95.6 33-141 <br /> Severn Trent Laboratories, Inc. 06/13/200313:22 <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 8 of 8 <br />