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Submission#: 2002-09-0702 <br /> Gas/BTEX by 8015M/8021 <br /> Js Wright Environmental Services Inc STL San Francisco <br /> 1220 Quart'Lane <br /> Attn.: Maria Reid <br /> 67 E 10th Street Pleasanton,CA 94566 <br /> Tracy, CA 95376-4001 " " Tel:(925)484-1919 <br /> Phone: (209) 833-0758 Fax: (209) 832-5152 Fax:(925)484-1096 <br /> Pro ect: M &M Builders Received: 09/30/2002 14:45 www. hrom <br /> � www.chromalabab.com <br /> Site: 8111 W. 11 th Street <br /> CA DHS ELAP#2496 <br /> Tracy, CA <br /> Batch QC Report <br /> Prep(s): 5030 Test(s): 8015M <br /> Laboratory Control Spike Water QC Batch#2002/10/01-01.04 <br /> LCS 2002/10/01-01.04-006' Extracted: 10/01/2002 Analyzed: 10/01/2002 09:59 <br /> LCSD 2002/10/01-01.04-007 Extracted: 10/01/2002 Analyzed:.10/01/20021.0:25 <br />+ Compound Conc. ug/L Exp.Conc. Recovery RPD Ctrl.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPD LCS LCSD <br /> Gasoline 487 456 500 97.4 91.2 6.6 75-125 20 <br /> Surrogates(s) <br /> 4-Bromofluorobenzene-FiD 431 413 500 86.2 82.6 50-150 <br /> I <br /> i <br />'i <br /> i <br /> i <br /> r <br /> l' 11/07/2002 11:35 77, San ranc:sco;s;ar,ci Zevern nt'_occratones, :nc. ?age 7 of 7 <br /> i <br />