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1 <br /> Entech Analytical Labs Inc. <br /> ' 3334 Victor Court , Santa Clara, CA 95054 Phone (408) 588-0200 Fax (408) 588-0201 <br /> Quality Control - Method Blank <br /> QC Batch ID WMS5040728 <br /> Validated by MTU-07128104 Matrix Liquid <br /> Date of Analysis 7/28/2004 <br /> Method EPA 8260B <br /> 1 Parameter Result DF PQL PQLR Units <br /> 1 2-Dibrom0e,thant,(FDB) ND 1 05 05 µg/L <br /> 1 2-Dichloroethane ND 1 05 05 VS/L <br /> ' Benzene ND 1 05 0 5 Ng/L <br /> Dnsopropyl Ether ND 1 5 5 lig/L <br /> Lthyl Benzene ND 1 05 0 5 pg/L <br /> rthyl-I butyl]-the, ND 1 5 5 pg1L <br /> ' Methyl-t-butyl Ether ND i l l pg/L <br /> tent Amyl Methyl t ther ND 1 5 5 pg/l <br /> Cert-Butanol(I BA) ND 1 10 10 mg/1- <br /> I <br /> g/L1 oluene ND 1 0 5 05 pg/L. <br /> Xylenem+p ND 1 1 1 pg/l, <br /> Xylene o ND 1 0 5 0 5 pg/L <br /> Xylcn45,total ND l I 1 pg/L <br /> ' Surrogate for Blank %Recovery Control Limit' <br /> 4 BromofluorobcnzLnc 91 8 64 - 125 <br /> Dibramofluoroinethane 983 23 - 172 <br /> 1 Toluene d8 993 70 134 <br /> Quality Control - Laboratory Control Spike ! Duplicate Results <br /> ' ReviewLd by MTU-07/28/04 QC Batch ID WMS5040728 <br /> Date of Analysis 7/28/2004 <br /> ' Method EPA 8260B Liquid Cone Units pg/L <br /> Parameter Blank Spike Amt SpikeResult QC 1 ype Analysts Date %Recovery RPD RPD Limits Recovery Limits <br /> ' Benzene <0 5 200 22 13 LCS 7!2812004 1106 77 154 <br /> C hlorobenLLne <0 5 200 235 LCS 7/28/2004 1175 66-141 <br /> Methyl t butyl Ether <1 20 0 184 LCS 7/28/2004 920 58 127 <br /> Toluene <0 5 200 23 5 LCS 7/28/2004 1175 47 137 <br /> ' Tm.hloroethenc — — <0 5 — 200 — 25 2 LCS — 7/2812004 W 1760 `- — ---57 159 <br /> Surrogate %Recovery Control 1 emits <br /> 4-Bromo0uorobt�ntene 991 64 - 125 <br /> ' ❑ibromOthIGTnmethane 1073 23 172 <br /> — ToluLne-d8 — --948 _ 70 _ 134 — -- — — -- ^^�-- — — -- — -- <br /> 1,1-Dichloroethene <0 5 200 192 LCSD 7/28/2004 960 142 25 60 132 <br /> ' Benzene <0 5 200 194 LCSD 7/2812004 970 131 25 77 t54 <br /> Chlorobeniene <0 5 200 211 LCSD 7/28/2004 1055 10 8 25 66-141 <br /> Methyl-t-butyl Ethef <1 200 15 8 1 CSD 7/28/2004 790 1S 2 25 58 127 <br /> ' 1 alucnc �— —<0 5 T 200 — 206 — LCSD _ 7/28/2004 — 103 0� 2 25 — — 47-137 <br /> Trichloroethene <0 5 200 21 9 LCSD 712812004 1095 14 14 0 25 57 154 <br /> Surrogate %Recovery Control Limits <br /> 4-Bromofluorohenzene 989 64 - 125 <br /> DibromofluoromLthane 877 23 - 172 <br /> loluen�d8 969 70 - 134 <br />