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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#2003/11/21-02.40 <br /> LCS 2003/11/21-02.40-007 Extracted: 11/21/2003 Analyzed: 11/24/2003 13:40 <br /> LCSD 2003/11/21-02.40-008 Extracted: 11/21/2003 Analyzed: 11/24/2003 14:06 <br /> Compound Conic. ug/Kg Exp.Conc. Recovery% RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Acenaphthene 237 250 332 71.4 75.3 5.3 50-150 30 <br /> Phenanthrene 237 242 332 71.4 72.9 2.1 50-150 30 <br /> Pyrene 264 267 332 79.5 80.4 1.1 50-150 30 <br /> Chrysene 271 272 332 81.6 81.9 0.4 50-150 30 <br /> Benzo(a)pyrene 257 255 332 77.4 76.8 0.8 50-150 30 <br /> Surrogates(s) <br /> 2-Fluorobiphenyl 7.26 7.80 10 72.6 78.0 30-115 <br /> p-Terphenyl-d14 8.67 8.66 10 86.7 86.6 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 29 of 31 <br />