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STL ChromaLab Submission M 2001-05-0569 <br /> t`f Environmental Services(CA 1094) <br /> To: San Joaquin Company, Inc. Test Method: 8020 <br /> L Attn: Bernie Dietz Prep Method: 5030 <br /> Batch QC Report <br /> Gas/BTEX <br /> Laboratory Control Spike(LCSILCSD) Water QC Batch#2001106106-01.02 <br /> LCS: 2001106106-01.02-004 Extracted: 061061200109:04 Analyzed 061061200109:04 <br /> LCSD: 2001106106-01.02-005 Extracted: 061061200109:36 Analyzed 061061200109:36 <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 /> Benzene 103 101 100.0 100.0 103.0 101.0 2.0 77-123 20 <br /> Toluene 104 102 100.0 100.0 104.0 102.0 1.9 78-122 20 <br /> Ethyl benzene 101 100 100.0 100.0 101.0 100.0 1.0 70-130 20 <br /> Xylene(s) 291 288 300 300 97.0 96.0 1.0 75-125 20 <br /> i <br /> Surrogate(s) <br /> Trifluorotoluene 568 551 500 500 113.6 110.2 58-124 <br /> I <br /> r <br /> f <br /> 1220 Quarry Lane'Pleasanton,CA 94566-4756 <br /> Telephone:(925)484-1919'Facsimile:(925)484-1096 <br /> Printed on:06/07/2001 15:04 Page 13 of 17 <br /> I <br />