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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: ICP <br /> QC Batch#: WM980611 Date Analyzed: 06/19/98 <br /> Matrix: Water Quality Control Sample: E11480 <br /> Units: m <br /> PARAMETERS Method# MB SA 's SR SP SP SPD SPD RPD QC LIMITS <br /> m m m ': m %R m %R %R RPD <br /> ,Antimony 1 200.7 1 <0.005 : 0.50 I ND 1 0.47 1 94 , 0.49 , 97 1 4.0 1 75- 125 , 25.0 , <br /> :Arsenic : 200.7 : <0.005 : 0.50 : 0.009 0.48 : 95 : 0.47 : 93 : 2.3 : 75- 125 : 25.0 <br /> I I I I 1 I I I I I I I I <br /> 'Barium 1 200.7 1 <0.0051 0.50 1 0.113 1 0.56 1 90 1 0.54 1 85 1 5.9 1 75- 125 1 25.0 1 <br /> I I I I I I I I I I I I <br /> :Beryllium : 200.7 1 <0.005 :I 0.50 , ND 1 0.48 , 96 , 0.49 1 97 , 1.5 I 75- 125 , 25.0 , <br /> I I I I I I I I I I I I <br /> 'Cadmium 1 200.7 I <0.005 I i 0.50 1 ND i 0.50 1 100 1 0.48 I 95 i 4.7 i 75- 125 � 25.0 1 <br /> 'Chromium 1 200.7 1 <0.0051 0.50 1 ND 1 0.46 1 92 1 0.47 1 94 1 2.2 1 75- 125 1 25.0 1 <br /> I I I I I I I I I I I I I <br /> :Cobalt : 200.7 : <0.005 : 0.50 I ND : 0.48 : 95 I 0.46 I 93 : 2.8 : 75- 125 : 25.0 : <br /> PP <br /> , <br /> :Co er 200.7 1 <0.005 1 0.50 0.041 0.48 88 1 0.48 88 I 0.7 I 75- 125 1 25.0 <br /> I I I I I I I I I I 1 I <br /> 'Iron ' 200.7 ' na ' na ' na ' na ' na ' na 1 na ' na 1 75- 125 1 25.0 1 <br /> I I I 1 I I 1 I I I I I I <br /> :Lead 1 200.7 : <0.005 I 0.50 I ND 1 0.48 I 95 1 0.49 : 97 I 2.1 : 75- 125 : 25.0 I <br /> :Molybdenum bdenum 1 200.7 <0.005 : 0.50 ND 1 0.47 94 0.48 97 1 3.4 75- 125 25.0 1 <br /> I I : : I I I I : : I I <br /> 'Nickel 200.7 1 <0.005 : 0.50 : ND : 0.49 1 98 1 0.47 1 94 I 3.7 1 75- 125 I 25.0 <br /> I <br /> :Selenium 1 200.7 1 <0.005 1 0.50 : ND I 0.50 : 100 : 0.51 : 103 : 3.0 : 75- 125 I 25.0 : <br /> : 113 0. 3 75- 125 25. <br /> Silver 200.7 <0.005 : 0.50 1 ND 0.57 1 54 I 109 4. 0 <br /> I I I : : : : : I I I : <br /> :Thallium : 200.7 : <0.005 :I 0.50 : ND : 0.45 : 89 : 0.43 : 86 : 3.4 : 75- 125 : 25.0 : <br /> :Vanadium : 200.7 : <0.005 1 0.50 1 0.031 1 0.49 ' 91 ' 0.52 1 98 : 7.6 1 75- 125 1 25.0 ' <br /> I 50 93 2. <br /> Zinc 200.7 <0.005 1 0.50 0.038 0.49 1 91 1 0. 6 I 75- 125 1 25.0 1 <br /> 1 I I I I I I I 1 I I I <br /> I I I I I I I I I 1 I I I <br /> Note: LCS and LCSD results reported for the following Parameters: <br /> None <br /> Acceptable LCS and LCSD results are reported when matrix interferences cause MS and MSD results to fall outside <br /> established QC limits. <br /> Definition of Terms: <br /> MB: Method Blank <br /> na: Not analyzed in QC batch <br /> SA: Spike Added <br /> SR: Sample Result <br /> SP: Spike Result <br /> SP(%R) Spike%Recovery <br /> SPD Spike Duplicate Result <br /> SPD(%R) Spike%Recovery <br />