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STLSubmission #: 2003-06-0199 <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: 06/06/2003 12:40 <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 #2003/06/06-01.40 <br /> LCS 2003/06/06-01.40-016 Extracted: 06/06/2003 Analyzed: 06/06/200317:42 <br /> LCSD 2003/06/06-01.40-017 Extracted: 06/06/2003 Analyzed: 06/06/200318:08 <br /> Compound Conc. ug/L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 5.93 6.29 10.00 59.3 62.9 5.9 50-150 30 <br /> Phenanthrene 6.51 6.76 10.00 65.1 67.6 3.8 50-150 30 <br /> Pyrene 5.55 5.82 10.00 55.5 58.2 4.7 50-150 30 <br /> Chrysene 7.20 7.59 10.00 72.0 75.9 5.3 50-150 30 <br /> Benzo(a)pyrene 7.84 8.35 10.00 78.4 83.5 6.3 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 5.48 5.63 10 54.8 56.3 43-116 <br /> p-Terphenyl-d14 5.05 5.29 10 50.5 52.9 33-141 <br /> Severn Trent Laboratories, Inc. 06/10/200316:10 <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 7 <br />