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L <br /> 05/10/07 10:16 <br /> LKleinfelder(Stockton) Project: Kenworth T-22 <br /> 2825 East Myrtle St. Project Number: 82946.HOI CLS Work Order#: CQE0105 <br /> Stockton,CA 95205 Project Manager: Joseph D.Zilles <br /> COC#:3997,3998,3999 <br /> DRAFT: Conventional Chemistry Parameters by APHA/EPA Methods-Quality Control <br /> r Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch CQ03773-General Prep <br /> Blank(CQ03773-BLKI) Prepared&Analyzed:05/03/07 <br /> Hexavalent Chromium ND 1.0 Rg/L <br /> LLCS(CQ03773-BS1) Prepared&Analyzed:05/03/07 <br /> Hexavalent Chromium 4.74 1.0 µg/L 5.00 94.9 80-120 <br /> LCS Dup(CQ03773-BSDI) Prepared&Analyzed:05/03/07 <br /> L Hexavalent Chromium 5.03 1.0 µg/L 5.00 101 80-120 5.75 20 <br /> Matrix Spike(CQ03773-MSI) Source:CQE0105-01 Prepared&Analyzed:05/03/07 <br /> ` Hexavalent Chromium 8.81 1.0 µg/L 5.00 3.06 115 80-120 <br /> Matrix Spike Dup(CQ03773-MSD1) Source:CQE0105-01 Prepared&Analyzed:05/03/07 <br /> Hexavalent Chromium 8.87 1.0 µg/L 5.00 3.06 116 80-120 0.690 20 <br /> L Batch CQ03777-General Prep <br /> Blank(CQ03777-BLKI) Prepared:05/03/07 Analyzed:05/04/07 <br /> Chloride ND 0.50 mg/L <br /> LY Fluoride ND 0.10 <br /> Nitrite as N ND 0.10 <br /> Nitrate as NO3 ND 2.0 <br /> Sulfate as SO4 ND 0.50 <br /> 6. LCS(CQ03777-BSI) ep <br /> Pr azed:05/03/07 Analyzed:05/04/07 <br /> Chloride 1.99 0.50 mg/L 2.00 99.6 80-120 <br /> Nitrite as N 0.624 0.I0 0.610 102 80-120 <br /> 6. Fluoride 2.19 0.10 " 2.00 109 80-120 <br /> Nitrate as NO3 2.14 2.0 2.00 107 80-120 <br /> Nitrate as N 0.483 0.50 0.451 107 80-120 <br /> Sulfate as SO4 4.89 0.50 5.00 97.8 80-120 <br /> L <br /> i <br /> L <br /> L <br /> L. <br /> LCA DOHS FLAP Accreditation/RegiSmulon Number 1233 PLATE <br /> 28 <br />