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J Y <br /> CHROMALAB, INC. Submission #: 2000-03-0351 <br /> Environmental Services(SDB) <br /> To: Wright Environmental Services Inc. Test Method: 8020 <br /> 8015M <br /> Attn: John Lynch Prep Method: 5030 <br /> Batch QC Report <br /> Gas/BTEX <br /> Laboratory Control Spike(LCS/LCSD) Water QC Batch#2000/03/24-01.03 <br /> LCS: 2000/03/24-01.03-002 Extracted: 03/24/200010:14 Analyzed 03/24/200010:14 <br /> LCSD: 2000/03/24-01.03-003 Extracted: 03/24/200012:25 Analyzed 03/24/200012:25 <br /> Compound Conc. [ug/L] Exp.Conc. [ug/L] Recovery[%] RPD Ctrl.Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD [%] Recovery RPD LCS LCSD <br /> Gasoline 480 445 500 500 96.0 89.0 7.6 75-125 20 <br /> E <br /> Benzene 82.1 82.8 100.0 100.0 82.1 82.8 0.8 77-123 20 <br /> Toluene 83.9 85.3 100.0 100.0 83.9 85.3 1.7 78-122 20 <br /> Ethyl benzene 80.0 81.0 100.0 100.0 80.0 81.0 1.2 70-130 20 <br /> Xylene(s) 233 238 300 300 77.7 79.3 2.0 75-125 20 <br /> Surrogate(-) <br /> Trifluorotoluene 424 432 500 500 84.8 86.4 58-124 <br /> 4-BromoFluorobenzene-FI 436 419 500 500 87.2 83.8 50-150 <br />< i4 <br /> 0 <br /> l <br /> is <br /> b <br /> 4 <br /> { <br /> `e <br /> i <br /> Y <br /> 9 <br /> t <br /> i <br /> a <br /> 1220 Quarry LanePleasanton,CA 94566-4756 <br /> 1 Telephone:(925)484-1919"Facsimile:(925)484-1096 <br /> Printed on:03/31/2000 14:58 Page 12 of 17 <br /> B <br /> a <br />