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Submission#: 2001-07-oaos <br /> STL GhromaLab <br /> Environmental Services(CA 1094) <br /> To: Wright Environmental Services Inc Test Method': 8015M <br /> Method: 5030 . <br /> Attn: Chris Palmer Pre P . <br /> Batch QC Report <br /> I <br /> Gas/BTEX Compounds by 8015M/8021 <br /> �i <br /> f Laboratory Control Spike(LCS/LCSD) Water QC Batch#2001/07/24-01.03 <br /> LCS: 2001/07/24-01.03-006 Extracted: 07/24/200109:45 Analyzed 07/24/200109:45 <br /> LCSD: 2001/07/24-01.03-007 Extracted: 07/24/200110:15 Analyzed 07/24/200110:15 <br /> Compound Conc. [ug/L] Exp.Conc. [ug/L] Recovery[%] RPD Ctrl.Limits[%] Flags <br /> LCS LCSD LCS 'LCSD LCS LCSD (96] Recovery RPD ..LCS LCSD <br /> Gasoline 460 476 500 500 92.0 95.2 3.4 75-125 20 <br /> Surrogate(s) <br /> 4$romofluorobenzene-FI 453 466, 500 500 90.6 93.2. 50-150 <br /> 3 <br /> • <br /> s <br /> ' V <br /> 1220 Quarry Lane'Pleasanton,CA 94566-4756 <br /> t Telephone:(925)484-1919'Facsimile:(925)484-1096 +: <br /> Printed on:07/26/2001 13:02 Page 18 of 20 <br /> - - it <br />