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Entech Analytical Labs Inc. <br /> 3334 Victor Court , Santa Clara, CA 95054 Phone: (408) 588-0200 Fax: (408) 588-0201 <br /> ' MS 1 MSD - Liquid - VOCs: EPA 5030C 1 EPA 8260B <br /> QC Batch ID: WM1060626 Reviewed by: TFulton-06/27/06 <br /> ' QC Batch ID Analysis Date: 612612006 <br /> MS Sample Spiked: 49987-001 <br /> Sample Spike Spike Analysis Recovery <br /> ' Parameter Result Amount Result Units Date %Recovery Limits <br /> Benzene ND 20 16.1 Ng/L 6/26/2006 90.5 70-130 <br /> Methyl-t-butyl Ether ND 20 13.9 yg/L 6/26/2006 69.5 70-130 •** <br /> —The MS°/a recovery is outside of the control limils.However,the batch was accepted by the LCSILCSD recoveries. <br /> Toluene ND 20 16.5 pg/L 6/26/2006 82.5 70-130 <br /> t Surrogate %Recovery Control Limits <br /> 4-Bromofluorobenzene 97.6 60 - 130 <br /> ' Dibromofluoromethene 78.6 60 - 130 <br /> Toluene-dS 90.0 60 - 130 <br /> MSD Sample Spiked: 49987-001 <br /> ' Sample Spike Spike Analysis Recovery <br /> Parameter Result Amount Result Units Date %Recovery RPD RPD Limits Limits <br /> Benzene ND 20 18.7 pg/L 6/26/2006 93.5 3.3 25.0 70-130 <br /> Methyl-t-butyl Ether NO 20 14.6 NgIL 6/26/2006 73.0 4.9 25.0 70-130 <br /> ' Toluene ND 20 i9.0 NgIL 6/26/2006 95.0 14 25.0 70-130 <br /> Surrogate %Recovery Control Limits <br /> 4-Bromofluorobenzene 82.4 60 - 130 <br /> Dibromofluoromethane 81.7 60 - 130 <br /> Toluene-d8 102.0 60 - 130 <br /> 1 <br /> 1 <br /> 1 <br /> QCReporl-ECunniffe-6/30/2006 1:10:09 PM <br /> 1 <br />