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STLSubmission #: 2003-05-0695 <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: 05/23/2003 18:40 <br /> Batch QC Report <br /> Prep(s): 3550B/827OC-SIM Test(s): 8270C-SIM <br /> Matrix Spike ( MS/MSD ) Soil QC Batch #2003/05/28-03.40 <br /> ST130-1 >> MS Lab ID: 2003-05-0695- 014 <br /> MS: 2003/05/28-03.40-023 Extracted: 05/28/2003 Analyzed: 05/28/200319:08 <br /> Dilution: 1.00 <br /> MSD: 2003/05/28-03.40-024 Extracted: 05/28/2003 Analyzed: 05/28/200319:35 <br /> Dilution: 1.00 <br /> Compound Conc. ug/Kg Spk.Level Recovery Limits% Flags <br /> MS MSD Sample ug/Kg MS MSD RPD Rec. RPD MS MSD <br /> Acenaphthene 229 226 ND 331 69.2 68.5 1.0 50-150 30 <br /> Phenanthrene 235 233 ND 331 71.0 70.6 0.6 50-150 30 <br /> Pyrene 243 232 ND 331 73.4 70.3 4.3 50-150 30 <br /> Chrysene 250 248 ND 331 75.5 75.2 0.4 50-150 30 <br /> Benzo(a)pyrene 278 280 ND 331 84.0 84.8 0.9 50-150 30 <br /> Surrogate(s) <br /> 2-Fluorobiphenyl 6.23 6.04 10 62.3 60.5 30-115 <br /> p-Terphenyl-d14 17.00 16.72 1 1 10 170.0 167.3 1 1 18-137 <br /> Severn Trent Laboratories, Inc. 05/29/200314:53 <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 9 of 9 <br />