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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 #2003/06/09-01.40 <br /> LCS 2003/06/09-01.40-013 Extracted: 06/09/2003 Analyzed: 06/12/200316:30 <br /> LCSD 2003/06/09-01.40-014 Extracted: 06/09/2003 Analyzed: 06/12/200316:56 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 6.84 7.32 10.00 68.4 73.2 6.8 50-150 30 <br /> Phenanthrene 7.10 7.46 10.00 71.0 74.6 4.9 50-150 30 <br /> Pyrene 7.15 7.36 10.00 71.5 73.6 2.9 50-150 30 <br /> Chrysene 7.64 7.92 10.00 76.4 79.2 3.6 50-150 30 <br /> Benzo(a)pyrene 8.73 9.18 10.00 87.3 91.8 5.0 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 6.89 7.43 10 68.9 74.3 43-116 <br /> p-Terphenyl-d14 5.62 5.82 10 56.2 58.2 33-141 <br /> Severn Trent Laboratories, Inc. 06/13/200310:52 <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 4 of 4 <br />