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Entech Analytical Labs, Inc. <br /> .b 3334 Victor Court • Santa Clara, CA 95054 • (408) 588-0200 • Fax (408) 588-0201 <br /> Quality Control Results Summary <br /> ' QC Batch#: WGC42027B Units: WL <br /> Matrix: Liquid Date Analyzed: 5/25/01 <br /> Parameter Method Blank Spike Spike Sample Spike QC Type %Recovery RPD RPD Recovery <br /> ' Result Sample 1D Amount Result Result Limits Limits <br /> Test: TPH as Gasoline <br /> TPH as Gasoline EPA 8015 M ND 561 476.3 LCS 84.9 65.0-135.0 <br /> ' Surrogate Surrogate Recovery Control Limits(%) <br /> aaa-Trifluorotoluene 103 65 - 135 <br /> Test: BTEX <br /> Benzene EPA 8020 ND 6.2 6.38 LCS 102.9 65.0- 135.0 <br /> ' Ethyl Benzene EPA 8020 ND 7.8 7.12 LCS 91.3 65.0-135.0 <br /> Toluene EPA 6020 ND 35.8 33.7 LCS 94.1 65.0-135.0 <br /> Xylenes,total EPA 8020 ND 43 37.4 LCS 87.0 65.0-135.0 <br /> Surrogate Surrogate Recovery Control Limits(%) <br /> aaa-Trifluorotoluene 102 65 - 135 <br /> Test: MTBE by EPA 8020 <br /> 1 Methyl-t-butyl Ether EPA 8020 ND 52.8 58.4 LCS 110.6 65.0-135.0 Surrogate Surrogate Recovery Control Limits(%) <br /> aaa-Trifluorotoluene 102 65 - 135 <br /> Test: TPH as Gasoline <br /> TPH as Gasoline EPA 8015 M ND 561 473.4 LCSD 84.4 0.61 25.00 65.0-135.0. <br /> Surrogate Surrogate Recovery Control Limits(%) <br /> aaa-Trifluorotoluene 104 65 - 135 <br /> Test: BTEX <br /> Benzene EPA 8020 ND 6.2 6.13 LCSD 98.9 4.00 25.00 65,0-135.0 <br /> Ethyl Benzene EPA 8020 ND 7.8 7.07 LCSD 90.6 0.70 25.00 65.0-135.0 <br /> Toluene EPA 8020 ND 35.8 34.0 LCSD 95.0 0.89 25.00 65,0-135.0 <br /> Xylenes,total EPA 8020 ND 43 37.3 LCSD 86.7 0.27 25.00 65.0-135.0 <br /> Surrogate Surrogate Recovery Control Limits(%) <br /> 1 aaa-Trifluorotoluene 103 65 - 135 <br /> Test: MTBE by EPA 8020 <br /> Methyl-t-butyl Ether EPA 8020 ND 52.8 50.5 LCSD 95.6 14.51 25.00 65.0-135.0 <br /> Surrogate Surrogate Recovery Control Limits(%) <br /> aaa-Trifluorotoluene 103 65 - 135 <br /> r <br /> Environmental Analysis Since 1983 <br />