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�I <br /> r <br /> ntech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> s Sunnyvale,CA 94086 <br /> s <br /> QUALITY CONTROL RESULTS SUMMARY <br /> ti <br /> METHOD: Gas Chromatography <br /> QC Batch#: GBG4990303 Date Analyzed: 03/03/99 <br /> 5 <br /> Matrix: Soil Quality Control Sample: Blank Spike <br /> � <br /> Units: µg/kg <br /> �i PARAMETER ; Method# MB SA SR SP SP : SPD SPD RPD QC LIMITS <br /> lag/kg µg/kg µg/kg : pg/kg % R lig/kg %R RPD , °/uR <br /> (BenzeneI 8020 I <5.0 I 80 I ND .l 81 1 101 1 82 F 103 I 1.3 I 25 I 87-94 <br /> 1 k 1 1 1 1 1 1 1 1 t 1 <br /> 1 1 1 1 1 1 1 1 1 1 f <br /> t ;Toluene l 8020 <5.0 80 ' ND 1 83 ' 103 84 ' 105 1 1.6 25 11 86-94 ; <br /> 1 E 1 1 1 1 1 1 1 1 1 1 1 <br /> k (Ethyl Benzene 8020 I <5.0 I 80 I ND I $3 1 103 I 84 I 105 I 1.5 l 25 ' 87-94 1 <br /> 1 ! 1 1 1 1 1 1 1 1 1 1 1 <br /> ,'Xylenes lenes I 8020 I <5.0 I 240 I ND I 251 1 104 I 254 I lOb I 1.3 l 25 I 83-99 I <br /> ..� I 1 I I I I I I 1 I 1 <br /> r� 'Gasoline ' 8015 ' <1000.00 1 1000 1 ND 1 1030 1 103 ; 1020 ' 102 ' 1.0 25 1 75-115 ' <br /> t <br /> Note: LCS and LCSD results reported for the following Parameters: <br /> All <br /> Definition of Terms: <br /> na: Not Analyzed in QC batch <br /> MB: Method Blank <br /> $A: 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 /> r SPD(%R): Spike%Recovery <br /> NC: Not Calculated <br /> 1 <br /> } I <br />