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STL ChromaUbSubmission #: 2001-08-0604 <br /> Environmental Services(CA 1094) .� <br /> To: ACC Environmental Consultants Test Method: 8021B <br /> Attn: Trevor Bausman Prep Method: 5035 <br /> Batch QC Report <br /> Gas/BTEX Compounds by 8015M/8021 <br /> Laboratory Control Spike (LCS/LCSD) Soil QC Batch#2001/09/06-01.02 <br /> LCS: 2001/09/06-01.02-005 Extracted: 09/06/200109:16 Analyzed 09/06/200109:16 <br /> LCSD: 2001/09/06-01.02-006 Extracted: 09/06/200109:48 Analyzed 09/06/200109:48 <br /> Compound Conc. [mg/Kg J Exp.Conc. [ri] Recovery[%] RPD Ctrl. Limits[%] I Flags <br /> LCS LCSD LCS I LCSD LCS LCSD [%] Recovery I RPD LCS LCSD <br /> Benzene 0.0885 0.0842 0.1000 0.1000 88.5 84.2 5.0 77-123 35 <br /> Toluene 0.0895 0.0844 0.1000 0.1000 89.5 84.4 5.9 78-122 35 <br /> Ethyl benzene 0.0897 0.0844 0.1000 0.1000 89.7 84.4 6.1 70-130 35 <br /> Xylene(s) 0.258 0.244 0.300 0.300 86.0 81.3 5.6 75-125 35 <br /> Surrogate(s) <br /> Trinuorotoluene 513 494 500 500 102.6 98.8 53-125 <br /> 1220 Quarry Lane`Pleasanton,CA 945664756 <br /> Telephone:(925)484-1919'Facsimile:(925)484-1096 <br /> Printed on:09/07/2001 13:43 Page 19 of 21 <br />