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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): 3550B/8270C-SIM Test(s):8270C-SIM <br /> Matrix Spike(MS/MSD) Soil QC Batch#2003/11/21-01.40 <br /> GMX-18-1.0 » MS Lab ID: 2003-11-0599-004 <br /> MS: 2003/11/21-01.40-011 Extracted: 11/21/2003 Analyzed: 11/24/2003 15:24 <br /> Dilution: 1.00 <br /> MSD: 2003/11/21-01.40-012 Extracted: 11/21/2003 Analyzed: 11/24/2003 15:50 <br /> Dilution: 1.00 <br /> Compound Conic. ug/Kg Spk.Level Recovery% Limits% Flags <br /> MS MSD Sample ug/Kg MS MSD RPD Rec. RPD MS MSD <br /> Acenaphthene 216 205 ND 333 64.9 61.6 5.2 50-150 30 <br /> Phenanthrene 224 218 ND 333 67.3 65.5 2.7 50-150 30 <br /> Pyrene 279 253 ND 333 83.8 76.0 9.8 50-150 30 <br /> Chrysene 264 252 ND 333 79.3 75.7 4.6 50-150 30 <br /> Benzo(a)pyrene 230 229 ND 333 69.1 68.8 0.4 50-150 30 <br /> Surrogate(s) <br /> 2-Fluorobiphenyl 6.83 6.42 10 68.3 64.2 30-115 <br /> p-Terphenyl-d14 18.48 17.54 1 1 10 184.8 175.4 1 1 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 30 of 31 <br />