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� <br /> STL Submission 2405.44-4574 <br /> 1 <br /> CAM 17 Metals i <br /> ---URS-San Francisco,-CA - _ -- -- -- ----- - -- ---- _--- - -- - _-- -_-- - --, <br /> Attn Erik Skov _ <br /> 221 Main Street#600 C <br /> San Francisco, CA 94105 <br /> Phone (415) 896-5858 Fax (415) 882-9261 <br /> Project 28066866 03000 Received 04/19/2005 17 50 <br /> UniFirst Facility-Stockton <br /> __-Batch QC Reort <br /> p <br /> Prep(s) 3050B Test(s) 6010B I <br /> Laboratory Control Spike Soil QC Batch#2045104125-02 15 <br /> LCS 2005/04/25-0215-013 Extracted 04/25/2005 Analyzed 04125120051141 <br /> LCSD 2005/04125-0215-014 Extracted 04/25/2005 Analyzed 04/25120051145 <br /> Compound, Conc mg/Kg Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD - LCS LCSD % Rec RPD LCS LCSD <br /> Antimony 805 884 1000 805 884 94 80-120 20 <br /> Arsenic 105 106 1000 1050 1060 09 80-120 20 <br /> Banurn` 107 108 1000 1070 1080 09 80-120 20 <br /> Beryllium 103 104 1000 1030 1040 10 80-120 20 <br /> Cadmium 103 105 1000 1030 1050 19 80-120 20 <br /> Chromium 104 105 1000 1040 1050 1 0 80-120 20 <br /> Cobalt 104 105 1000 1040 1050 1 0 80-120 20 <br /> Copper 106 108 1000 1060 1080 19 80-120 20 <br /> Lead _ 104 105 1000 1040 1050 1 0 80-120 20 <br /> Molybdenum 105 107 1000 1050 1070 1 9 80-120 20 <br /> Nickel 104 105 1000 1040 1050 1 0 80-120 20 <br /> Selenium 990 100 1000 990 1000 1 0 80-120 20 <br /> Silver 102 103 1000 102'0 1030 10 80-120 20 <br /> Thallium 109 911 1000 1090 1110 18 80-120 20 <br /> Vanadium 105 106 1000 1050 1060 09 80-120 20 <br /> Zinc 103 104 1000 1030 11040 1 0 80-120 20 <br /> r <br /> e <br /> Severn Trent Laboratories, Inc 04126/20051410 <br /> STL Sart Francisco"1220 Quarry Lane Pleasanton CA 94566 <br /> A P.m 075eveio Tient Pk Tel 925 484 1919 Fax 925 484 1096'www stl-ine COM'CA DHS ELAP#2496 Page 11 of 11 <br />