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Entech Anal tical Labs Inc. <br /> 3334 Victor Court , Santa Clara, CA 95054 Phone: (408) 588-0200 Fax (408) 588-0201 <br /> Laboratory Control Sample 1 Duplicate - Liquid - BPA 8260E - 8260Petroleum <br /> QC Batch ID WM2060120 Reviewed by MaiChiTu-01123/06 <br /> ' QC Batch ID Analysis Date 1120/2006 <br /> LCS <br /> Parameter Method Blank Spike Amt SpikeResult Units %Recovery Recovery Limits <br /> ' 1 1-Dichloroethene <0 50 20 190 pg1L 951 70- 130 <br /> Benzene <0 50 20 211 pg1L 106 70- 130 <br /> Chlorobenzene <0 50 20 223 pg1L 112 70- 130 <br /> ' Methyl-t-butyl Ether <10 20 201 pg1L 101 70- 130 <br /> Toluene <0 50 20 205 pg1L 103 70- 130 <br /> Tnchloroethene <0 50 20 219 pglL 109 70- 130 <br /> Surrogate %Reeo,*ery Control Litnits <br /> 4-Bromofluorobenzene 1100 60 - 130 <br /> Dibromofluoromethanc 925 60 - J30 <br /> Tolucnc-dS 1020 60 130 <br /> ' LCSD <br /> Parameter Method Blank Spike Amt SpikeResult Units %Recovery RPD RPD Limits Recovery Limits <br /> 1 1-Dichloroethene <0 50 20 197 pg1L 986 37 250 70- 130 <br /> ' Benzene <0 50 20 225 pg1L 113 64 250 70- 130 <br /> Chlarobenzene <0 50 20 228 pg1L 114 20 250 70- 130 <br /> Methyl-t-butyl Ether <1 0 20 230 pg1L 115 13 260 70- 130 <br /> Toluene <0 50 20 21 2 pg/L- 106 31 25 0 70- 130 <br /> Trichloroethene <0 50 20 246 pg1L 123 12 250 70- 130 <br /> Surrogate %Recoâ–ºery Control Limits <br /> 4-Bromofluorobenzme 1130 60 130 <br /> ' Dibromofluoromethane 1010 60 - 130 <br /> Toluene-d8 1020 60 130 <br /> Laboratory Control Sample 1 Duplicate - Liquid - GC-MS - TPH as Gasoline-GC-MS <br /> QC Batch ID WM2060120 Reviewed by MaiChiTu 01123106 <br /> QC Batch ID Analysis Date 1/20/2006 <br /> 1 LCS <br /> Parameter Method Blank Spike Amt SpikeResult Units °A Recovery Recovery Limits <br /> TPH as Gasoline <25 250 300 p9/1. 120 65- 135 <br /> Surrogate %Recovery Control Limits <br /> ' 4-Bromofluorobenzene 982 60 130 <br /> Dibromotluoromethane 10t 0 60 130 <br /> Tolucnc-d8 99 4 60 130 <br /> LCSD <br /> Parameter Method Blank Spike Amt SpikeResult Units %Recovery RPD RPD Limits Recovery Limits <br /> TPH as Gasoline <25 250 307 yg/L 123 22 25 0 65- 135 <br /> ' Surrogate %Recovery Control Limits <br /> 4-13romofluorobenzenc 1030 60 130 <br /> Dibrornofluoromethane 1060 60 130 <br /> Tolucne--<18 962 60 - 130 <br /> 1 <br /> ' QCReport-dba 1/2612006 9 47 06 PM <br />