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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#: VOCS961104 Date Analyzed: 11/04/96 <br /> Matrix: Soil - Quality Control Sample: Blank Spike <br /> Units: µg/kg <br /> l ` QC LIMITS <br /> l <br /> PARAMETER method# SA SR SP SP SRD l SPD E RPD (ADVISORY) <br /> µgig ` Ng/k-g pg/kg % R pg!,kg %R RPD 1 %R <br /> :Benzene 1 602/80201 401 NDI 41.Ui. 1031. .. 39.01 981_ 5.01 25 1 50-150 1 <br /> (Toluene. ' 1 602./8020 1 401 ND: 42.51 1061 39.6: 991 7.1� 25 1 50-150 : <br /> 1 I i 1 1 I I I I' I 1 1 <br /> 1Chlorobenzene 1'602/8020 1 401 NDI 35.01 881 37.91 951 8.01 25 1 50-150 1 <br /> 11,1-Dichloroethane 1 601/8010-1 401 " NDI. 41.61 1041 -39.71 991 4:71 25 -1 . 50-150 1 <br /> :Trichloroethene 1 601/80101 401 NDII 41.51 10411 I 1 I 39:6: 991 4.71 25 : 50-150 I <br /> 1 1 I <br /> J. <br /> Definition 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(%R): Spike%Recovery <br /> SPD: Spike Duplicate Result <br /> SPD(%R): Spike Duplicate%Recoveryk <br /> NC: Not Calculated <br />