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Entech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> METHOD Gas Chromatography-Volatile Organics <br /> QC Batch#t' VOCS961118 Date Analyzed 11/18/96 <br /> Matrix Soil Quality Control Sample Blank Spike <br /> Units ggAkg <br /> QC LIMITS <br /> PARAMETER Method#E SA SR SP SP SPD SPD RPD (ADVISORY) <br /> R %R RPD I 01A <br /> gglkg 1/.,Benzene 1 602/8020 1 401 NDI 44 11 1101 43 91 1101 0 51 25 t 50-150 i <br /> Chlorabenzene 1 601/8010 11 401, ND LI 4411, 11011 42 511 1061' 371, 25 50-150 <br /> 11,1-Dichloroethane 1 601119010 1 401 NDI 4271 1071 4451 1111 411 25 1 50-150 <br /> 1 1 I l 1 i 1 1 1 1 <br /> Tolulene It <br /> 602/8020 1 401 ND, 44 51 1111 44 31 1111 05, 25 1 50-150 1 <br /> 'Trichloroethene t 601/8010 t 401 ND1 45211 1131 45 51 1141I 0 7tI I 25 I 50-150 ' <br /> I 1 1 I I I I 1 <br /> 1 1 I I 1 l i 1 1 I I I <br /> Defiiution of Terms <br /> na Not Analyzed in QC batch <br /> SA Spike Added <br /> SR Sample Result <br /> RPD(%) Duplicate Analysis-Relative Percent Difference <br /> SP Spike Result <br /> SP (°/oR) Spike%Recovery <br /> SPD Spike Duplicate Result <br /> SPD (%R) Spike Duplicate%Recovery <br /> NC Not Calculated <br />