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STLSubmission#: 2003-11-0599 <br /> PNA analysis by 8270C/SIM GUMS <br /> Geomatrix Consultants <br /> Attn.: Robert Cheung <br /> 2101 Webster Street, 12th Floor <br /> Oakland, CA 94612 <br /> Phone: (510)663-4299 Fax: (510)663-4141 <br /> Project: 7066.001 Received: 11/17/2003 17:15 <br /> Batch QC Report <br /> Prep(s): 355013/8270C-SIM Test(s): 8270C-SIM <br /> Laboratory Control Spike Soil QC Batch#2003/11/21-01.40 <br /> LCS 2003/11/21-01.40-004 Extracted: 11/21/2003 Analyzed: 11/24/2003 12:22 <br /> LCSD 2003/11/21-01.40-005 Extracted: 11/21/2003 Analyzed: 11/24/2003 12:48 <br /> Compound Conic. ug/Kg Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 236 236 332 71.1 70.9 0.3 50-150 30 <br /> Phenanthrene 236 238 332 71.1 71.5 0.6 50-150 30 <br /> Pyrene 263 265 332 79.2 79.6 0.5 50-150 30 <br /> Chrysene 275 274 332 82.8 82.3 0.6 50-150 30 <br /> Benzo(a)pyrene 247 257 332 74.4 77.2 3.7 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 7.39 7.46 10 73.9 74.6 30-115 <br /> p-Terphenyl-d14 8.24 8.42 10 82.4 84.2 18-137 <br /> Severn Trent Laboratories, Inc. 11/26/2003 13:51 <br /> STL San Francisco*1220 Quarry Lane,Pleasanton,CA 94566 <br /> A part of Severn Trent Plc Tel 925 484 1919 Fax 925 484 1096*www.stl-inc.com*CA DHS ELAP#2496 Page 28 of 31 <br />