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STLSubmission #: 2003-06-0012 <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: 06/02/2003 08:41 <br /> Batch QC Report <br /> Prep(s): 3510C/8270C-SIM Test(s): 8270C-SIM <br /> Laboratory Control Spike Water QC Batch #2003/06/02-01.40 <br /> LCS 2003/06/02-01.40-017 Extracted: 06/02/2003 Analyzed: 06/02/2003 21:44 <br /> LCSD 2003/06/02-01.40-018 Extracted: 06/02/2003 Analyzed: 06/02/2003 22:10 <br /> Compound Conc. ug/L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 6.48 6.63 10.00 64.8 66.3 2.3 50-150 30 <br /> Phenanthrene 6.89 7.14 10.00 68.9 71.4 3.6 50-150 30 <br /> Pyrene 7.89 8.37 10.00 78.9 83.7 5.9 50-150 30 <br /> Chrysene 7.28 7.54 10.00 72.8 75.4 3.5 50-150 30 <br /> Benzo(a)pyrene 7.91 8.20 10.00 79.1 82.0 3.6 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 6.14 6.37 10 61.4 63.7 43-116 <br /> p-Terphenyl-d14 6.73 7.09 10 67.3 70.9 33-141 <br /> Severn Trent Laboratories, Inc. 06/04/200314:56 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A Part of Severn Trent Pc Tel 925 484 1919 Fax 925 484 1096'www.stl-inc.com`CA DHS ELAP#2496 Page 6 of 6 <br />