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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 />' Method Blank - Liquid - EPA 8020 - BTEX <br /> 'TrBatch ID: WGCO51102 Validated by MaiChiru-11/03105 <br /> c Batch Analysis Date 11/2/2005 <br /> Parameter Result DF PQLR Units <br /> Benzene ND 1 0 50 pg/L <br />' Ethyl Benzene ND 1 0 50 NgIL <br /> Toluene ND 1 050 lag/L <br /> Xylenes,Total ND 1 0 50 NgIL <br /> Surrogate for Blank %Recovery Control Limits <br /> 4-Bromofluorobenzene 853 65 - 135 <br /> Laboratory Control Sample 1 Duplicate - Liquid - EPA 8020 - BTEX <br /> QC Batch ID WGCO51102 Reviewed by MaiCh7u- 11/03/05 <br /> QC Batch ID Analysis Date 11/212005 <br />' LCS <br /> Parameter Method Blank Spike Amt SpikeResult Units %Recovery Recovery Limits <br /> Benzene <0 50 4 0 3 61 NgIL 902 65-135 <br />' Ethyl Benzene <0 50 4 0 353 lag/L 882 65-135 <br /> Toluene <0 50 4 0 383 pg/L. 95 8 65-135 <br /> Xylenes, total <0 50 12 106 NgIL 886 65-135 <br /> Surrogate %Recovery Control Limits <br /> 4-Bromofluorobenzene 888 65 - 135 <br /> LCSD <br />' rameter Method Blank Spike Amt SpikeResult Units % Recovery RPD RPD Limits Recovery Limits <br /> zene <0 50 4 0 3 12 pg/L. 780 15 25 0 65-135 <br /> Ethyl Benzene <0 50 4 0 3 15 lag/L 788 11 25 0 65-135 <br /> Toluene <0 50 4 0 342 lag/L 855 11 25 0 65-135 <br /> Xylenes,total <0 50 12 975 lag/L 81 2 8 6 260 65-135 <br /> Surrogate %Recovery Control Limits <br /> 4-Bromofluorobenzene 108 65 - 135 <br /> I <br /> I <br /> 1 <br /> QCReport-ECunniHe 1 1/4/2005 2 45 59 PM <br />