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STLSubmission #: 2003-06-0601 <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: 06/19/2003 11:25 <br /> Batch QC Report <br /> Prep(s): 3510C/8270C-SIM Test(s): 8270C-SIM <br /> Laboratory Control Spike Water QC Batch #2003/06/19-01.40 <br /> LCS 2003/06/19-01.40-005 Extracted: 06/19/2003 Analyzed: 06/19/200314:14 <br /> LCSD 2003/06/19-01.40-006 Extracted: 06/19/2003 Analyzed: 06/19/200314:41 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 6.31 6.02 10.00 63.1 60.2 4.7 50-150 30 <br /> Phenanthrene 6.69 6.55 10.00 66.9 65.5 2.1 50-150 30 <br /> Pyrene 7.18 7.53 10.00 71.8 75.3 4.8 50-150 30 <br /> Chrysene 7.21 6.93 10.00 72.1 69.3 4.0 50-150 30 <br /> Benzo(a)pyrene 7.88 7.62 10.00 78.8 76.2 3.4 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 5.68 5.56 10 56.8 55.6 43-116 <br /> p-Terphenyl-d14 7.01 7.25 10 70.1 72.5 33-141 <br /> Severn Trent Laboratories, Inc. 06/23/200315:29 <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 />