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i <br /> I <br /> i <br /> A N A L T I C A L � <br /> LABORATORIES <br /> QC Summary Report 02/10/20.00 <br /> BSK Submission: 2000010848 <br /> Client: BSK&Associates-Sacramento <br /> Date Submitted: 01/31/2000 <br /> Project ID: 07400230 <br /> Project Desc: My Lube Manteca <br /> BSK StarLims Run #: 4483 <br /> Analyte Results <br /> Analyte QC Type Result Units %Rec or RPD Spike RPD Spk Conc UCL LCL Date <br /> Di-isopropyl Ether LCS 8.47 pg/L 67 12.5 130 70 02/01/00 OOS-Low <br /> Ethyl t-Butyl Ether LCS 9.35 µg/L 74 12.5 130 70 02/01/00 Acceptable <br /> Methyl-t-Butyl Ether LCS 9.9 gg/L 79 12.5 130 70 02/01/00 Acceptable <br /> t-Amyl Methyl Ether LCS 9.56 µg/L 76 12.5 130 70 02/01/00 Acceptable <br /> tert-Butyl Alcohol LCS 109.15 µg/L 87 125 130 70 02/01/00 Acceptable <br /> Di-isopropyl Ether LCSD 8.89 µg/L 71 12.5 130 70 02/01/00 Acceptable <br /> Ethyl t-Butyl Ether LCSD 9.33 µg/L 74 12.5 130 70 02/01/00 Acceptable <br /> Methyl-t-Butyl Ether LCSD 9.81 gg/L 78 12.5 130 70 02/01/00 Acceptable <br /> t-Amyl Methyl Ether LCSD 9.26 Ag/L 74 12.5 130 70 02/01/00 Acceptable <br /> tert-Butyl Alcohol LCSD 104.08 µg/L 83 125 130 70 02/01/00 Acceptable <br /> Di-isopropyl Ether RBLK 0 µg/l, <5.0 5.0 N/A 02/02/00 Acceptable <br /> Ethyl t-Butyl Ether RBLK 0 gg/L <5.0 5.0 N/A 02/02/00 Acceptable <br /> Methyl-t-Butyl Ether RBLK 0 AWL <5.0 5.0 N/A 02/02/00 Acceptable <br /> i <br /> t-Amyl Methyl Ether RBLK 0 n/L <5.0 5.0 N/A 02/02/00 Acceptable <br /> tert-Butyl Alcohol RBLK 0 µg/L <50 50 N/A 02/02/00 Acceptable <br /> Run Comments <br /> The di-isopropyl ether LCS recovery was slightly low,however the LCSD recovery was within the <br /> acceptance range. <br /> Surrogate Results <br /> Analyte QC Type,_ Surr.Result UCL LCL Date <br /> Toluene-d8 :._ ___. LCS 962 %Rec 130 70 02/01/00 Acceptable <br /> Toluene-d8 LCSD 94.8 %Rex 130 70 02/01/00 Acceptable <br /> Toluene-d8 RBLK 92.7 %Rec 130 70 02/02/00 Acceptable <br /> Approved by: <br /> i <br /> F <br /> %Rec: Percent Recovered Parent Sample: Sample used as background matrix for MS/MSD Page 1 of l <br /> RPD: Relative Percent Difference OOS-High: QC Result Above UCL <br /> UCL: Upper Control Limit OOS-Low: QC Result Below LCL <br /> LCL: Lowes Control Limit <br />