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Entech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> Volatile Organic Compounds <br /> QC Batch#: SGCMS990323 Date analyzed: 03/23/99 <br /> Matrix: Soil Spiked Sample: Blank Spike <br /> Units: IAeJKg. <br /> PARAMETER Method# ; SA SR SP SP SPD SPD RPD QC LIMITS <br /> gg/Kg: µg/Kg.' IAg/Kb' ' %R µg/Kg:: %R RPD i %R <br /> 11,1-Dichloroethene 18240/82601 25 1 ND i 26 1 102 1 26 i 103 1 0.8 1 25 1 50-150 1 <br /> ]Methyl-tert-butyl ether 18240/82601 25 1 ND 27 1 106 1 26 1 103 1 2.7 25 1 50-150 1 <br /> 1 11 1 1 1 I 1 1 1 1 <br /> ,Benzene 182401$260, 25 ND 28 i10 28 110 0.0 25 50-150 , <br /> 1 1 1 1 1 1 1 1 1 1 1 1 <br /> ITrichlorcethene 18240/8260 25 1 ND 1 25 , 102 25 100 1.2 1 25 1 50-150 1 <br /> 1 1 1 1 1 1 <br /> 1 <br /> :Toluene 18240/82601 25 1 ND 1 27 : 109 1 27 1 109 0.0 1 25 1 50-150 1 <br /> 1 F 1 1 I 1 1 ! 1 1 1 1 <br /> lChlorobenzene 18240/82601 25 1 ND 1 29 1 11.8 1 29 1 116 1 1.0 1 25 1 50-150 1 <br /> 1 , <br /> Note: LCS and LCSD results reported for the following Parameter: <br /> ,411 <br /> Definition of Terms: <br /> na: Not Analyzed in QC batch <br /> SA: Spike Added <br /> SR: Sample Result <br /> RP.D(%): Duplicate Analysis-Relative Percent Difference <br /> SP: Spike Result <br /> SP(%R): Spike%Recovery <br /> SPD: Spike Duplicate Result <br /> SPD(%R): Spike Duplicate%Recovery <br /> NC: Not Calculated <br />