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2 <br /> Entech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> " Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> METHOD:Gas Chromatography <br /> QC Batch#: GBG2990303 Date Analyzed: 03/03/99 <br /> 1 <br /> Matrix: Water Quality Control Sample: Blank Spike <br /> Units: ply <br /> PARAMETER : Method# : MB SA SR SP SP SPD SPD RPD QC LIMITS <br /> 11P P g/L µ %Rgg/L %R ; RPD , %R <br /> 'Benzene 8020 <0.50 I 40 I ND I 40 100 41 102 I 2.5 25 I 81-117 <br /> l !Toluene I 8020 I <0.50 I 40 I ND ! 40 ! 100 I 41 1 103 I 2.5 1 25 I 82-115 I <br /> i <0.50 40 ND 41 101 42 104 2.7 25 83-116 <br /> ;Ethyl Benzene 8020 ` ' <br /> 'Xylenes I 8020 <0.50 120 I ND I 122 I 102 I 124 I 103 I 1.9 I 25 I 83-117 <br /> ' [Gasoline 8015 <50.0 500 1 ND 478 [ 96 492 [ 98 2.9 25 78-119 <br /> Note: LCS and LCSD results reported for the following Parameters: <br /> .41I <br /> Definition of Terms: <br /> na: Not Analyzed in QC batch <br /> r MB: Method Blank <br /> SA: Spike Added <br /> SR: Sample Result <br /> RPD(%): Duplicate Analysis-Relative Percent Difference <br /> SP: Spike Result <br /> t SP(%R): Spike%Recovery <br /> SPD: Spike Duplicate Result <br /> SPD(%R): Spike%Recovery <br /> NC: Not Calculated <br /> r�r <br /> I�E <br />