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STLSubmission#: 2003-11-0599 <br /> CAM 17 Metals <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): 3050B Test(s):6010B <br /> Matrix Spike(MS/MSD) Soil QC Batch#2003/11/18-03.15 <br /> GMX-17-1.0 » MS Lab ID: 2003-11-0599-001 <br /> MS: 2003/11/18-03.15-053 Extracted: 11/18/2003 Analyzed: 11/19/2003 11:16 <br /> Dilution: 1.00 <br /> MSD: 2003/11/18-03.15-054 Extracted: 11/18/2003 Analyzed: 11/19/2003 11:20 <br /> Dilution: 1.00 <br /> Compound Conc. mg/Kg Spk.Level Recovery% Limits% Flags <br /> MS MSD Sample mg/Kg MS MSD RPD Rec. RPD MS MSD <br /> Antimony 19.0 13.8 ND 98.0 19.4 14.3 30.3 75-125 20 MSO MSO <br /> Arsenic 89.0 88.5 5.71 98.0 85.0 86.1 1.3 75-125 20 <br /> Barium 253 255 162 98.0 92.9 96.7 4.0 75-125 20 <br /> Beryllium 91.3 89.8 ND 98.0 93.2 93.3 0.1 75-125 20 <br /> Cadmium 83.8 83.0 ND 98.0 85.5 86.3 0.9 75-125 20 <br /> Chromium 109 108 26.2 98.0 84.5 85.0 0.6 75-125 20 <br /> Cobalt 95.0 94.6 9.89 98.0 86.8 88.1 1.5 75-125 20 <br /> Copper 126 125 27.6 98.0 100.4 101.2 0.8 75-125 20 <br /> Lead 90.0 90.3 9.35 98.0 82.3 84.1 2.2 75-125 20 <br /> Molybdenum 66.3 59.9 ND 98.0 67.7 62.3 8.3 75-125 20 MSO MSO <br /> Nickel 124 123 37.6 98.0 88.2 88.8 0.7 75-125 20 <br /> Selenium 79.8 78.4 ND 98.0 81.4 81.5 0.1 75-125 20 <br /> Silver 95.0 93.9 ND 98.0 96.9 97.6 0.7 75-125 20 <br /> Thallium 75.2 76.0 ND 98.0 76.7 79.0 3.0 75-125 20 <br /> Vanadium 117 113 28.7 98.0 90.1 87.6 2.8 75-125 20 <br /> Zinc 124 125 44.9 98.0 80.7 83.3 3.2 75-125 20 <br /> Severn Trent Laboratories, Inc. 11/25/2003 13:54 <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 32 of 36 <br />