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Entech Analytical Labs, Inc. <br /> 3334 Victor Court , Santa Clara, CA 95054 Phone: (408) 588-0200 Fax: (408) 588-0201 fi <br /> Method Blank - Solid - TPH-Purgeable-GC: EPA 8015B J <br /> QC Batch ID: SGC070301 Validated by: EricKum-03/02/07 <br /> QC Batch Analysis Date: 3/1/2007 1 <br /> J <br /> Parameter Result DF PQLR Units <br /> TPH as Gasoline ND 1 0.50 mg/Kg <br /> Surrogate for Blank %Recovery Control Limits <br /> 4-Bromofluorobemvne 112 65 - 135 <br /> LCS/LCSD - Solid TPH-Purgeable-GC: EPA 8015B <br /> QC Batch ID: SGC070301 Reviewed by: EricKum-03/02/07 <br /> QC Batch ID Analysis Date: 3/1/2007 t <br /> LCS J <br /> Parameter Method Blank Spike Amt SpikeResult Units %Recovery Recovery Limits <br /> TPH as Gasoline <0.50 2.5 2.33 mg/Kg 93.2 65-135 <br /> Surrogate %Recovery Control Limits <br /> 4-Bromofluorobenzene 114.0 65 - 135 <br /> LCSD j <br /> Parameter Method Blank Spike Amt SpikeResult Units %Recovery RPD RPD Limits Recovery Limits J <br /> TPH as Gasoline <0.50 2.5 2.45 mg/Kg 98.0 5.0 30.0 65-135 <br /> Surrogate %Recovery Control Limits <br /> 4-Bromofluorobenzene 125.0 65 - 135 <br /> MS/MSD - Solid - TPH-Purgeable-GC: EPA 8015B <br /> QC Batch ID: SGCO70301 Reviewed by: EricKum-03/02/07 <br /> QC Batch ID Analysis Date: 3/1/2007 <br /> MS Sample Spiked: 54204-001 <br /> Sample Spike Spike Analysis Recovery 1 <br /> Parameter Result Amount Result Units Date %Recovery Limits J <br /> TPH as Gasoline ND 2.5 2.06 mg/Kg 3/1/2007 82.4 65-135 <br /> Surrogate %Recovery Control Limits <br /> 4-Bromofluorobenzene 132.0 65 - 135 <br /> MSD Sample Spiked: 54204-001 <br /> Sample Spike Spike Analysis Recovery <br /> Parameter Result Amount Result Units Date %Recovery RPD RPD Limits Limits <br /> TPH as Gasoline ND 2.5 1.90 mg/Kg 3/1/2007 76.0 8.1 30.0 65-135 <br /> Surrogate %Recovery Control Limits <br /> 4-Bromofluorobenzene 123.0 65 - 135 —r <br /> J <br /> J <br /> J <br /> J <br /> QCReport-ECunniffe-3/7/2007 6:59:14 PM j <br />