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Submission#: 2001-07-0408 <br /> STL ChromaLab <br /> Environmental Services(CA 1094) !` <br /> To: Wright Environmental Services Inc Test Method: 8015M A <br /> Attn: Chris Palmer Prep Method: 5035 <br /> Report <br /> f <br /> Batch QC Re p <br /> Gas/BTEX Compounds by 8015M/8021 <br /> Laboratory Control Spike(LCS/LCSD) Soil QC Batch#2001/07/24.01.04 <br /> LCS: 2001107/24-01:04-006 Extracted: 07/24/200109:33 Analyzed 07/24/200109:33 <br /> LCSD: 2001/07/24-01.04-007 Extracted: 07/24/200110:01 Analyzed 07/24/200110:01 <br /> Compound Conc. [mg/Kg] Exp.Conc. [mg/Kg]' Recovery[%] RPD Ctrl.Limits[°!o] Flags <br /> LCS LCSD . LCS LCSD LCS LCSD I%I Recovery RPD LCS LCSD <br /> Gasoline OA15 0A30 0.500 i0.500 83.0 86:0 3.6 75-125 35 <br /> Surrogate(s) <br /> 4-Bromofluorobenzene-F1 335 349 500 500 67.0 69.8 58-124 <br /> i <br /> N <br /> 1220 Quarry Lane`Pleasanton,CA 94566-4756 <br /> Telephone:(925)484-1919Facsimile:(925)484-1096. <br /> Printed on:07/2612001 13:02 Page 16 of 20 <br />