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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# WN0294 Date Analyzed 10/01/97 <br /> Matrix Water Quality Control Sample D15198 <br /> Utuis ing/L <br /> PARAMETER Method# MB SA SR SP SP SPD SPD RPD QC LIMITS <br /> m /L m /L mg/L mg/L %R m L % R %R Z RPD <br /> Fritimony 1 2007 1 <0 0051 050 1 0 023 1 047 1 90 1 047 t 89 1 16 1 75--T2-5 --T. 200 1 <br /> I Arsenic 1 2007 1 <0 0051 050 1 0 017 1 051 1 98 1 048 1 92 1 59 1 75- 125 1 200 1 <br /> 1 <br /> :Barium 1 2007 , <0 00511 100 1 ND 1 098 1 98 1 105 1 105 1 66 1 75- 125 I 200 I <br /> :Beryllium lltum t 2007 1 <0 0051: 050 1 ND 042 1 84 1 042 1 85 1 05 75- 125 I 200 <br /> I <br /> rY 1 : 1 1 1 1 t 1 1 1 1 <br /> :Cadmium 11 2007 1 <0 0051t 050 1 ND 1 046 1 92 1 048 1 96 I 40 1 75- 125 200 <br /> 1 <br /> : 1 1 1 1 1 1 1 I I <br /> IChromium 1 2007 1 <0 0051 050 1 ND 1 047 1 95 1 050 1 100 1 55 1 75- 125 1 200 : <br /> Cobalt 1 1 1 1 1 1 1 I I <br /> I t 200 7 1 <0 0051 0 50 i ND 1 040 1 80 1 0 38 tt 77 46 1 75- 125 200 1 <br /> 'Copper ° 2007 1 <0 OOSI 0 50 1 1 0 164 067 1 102 1 064 1 1 1 94 I 77 1 75- 125 200 <br /> 1 <br /> : ! 1 : 1 1 1 : I 1 <br /> I Lead 1 2007 1 <0 0051 050 1 0 018 1 043 1 82 1 045 1 86 1 43 1 75- 125 1 200 1 <br /> ,Molybdenum , 2007 : <0 005:I 050 1 0 242 1 072 1 96 : 073 I 97 1 1 5 1 75- 125 I 200 I <br /> Nickel I 2007 <0 0051I 050 0 094 1 050 1 81 1 050 1 81 07 1 75- 125 I 200 <br /> 1 <br /> 1 I I 1 I : 1 1 I 1 I 1 <br /> 'Selenium 1 2007 1 <0 005I: 050 1 ND 1 047 1 93 10 51 1 103 1 98 1 75- 125 1t 200 <br /> 1 <br /> t I 1 I 1 1 I 1 1 1 <br /> ,Silver 1 2007 1 <0 0051 050 1 ND 1 052 1 103 1 054 1 108 1 44 1 75- 125 1 200 I <br /> �Tbalhum 2007 i <0 005: 050 i ND i 046 92 041 81 127 75- 125 i 200 i <br /> drum ; 2007 i <0 005: 050 0 109 050 79 050 79 03 75- 125 200 <br /> c 1 2007 1 <0 0051 050 1 ND 1 048 1 % 1 049 1 99 1 27 1 75- 125 1 200 + <br /> I 1 I i 1 I 1 t 1 1 1 I I <br /> Note LCS and LCSD results reported far the following Parameters <br /> Banum <br /> Chromium <br /> Acceptable LCS and LCSD results are reported when matnx interferences cause MS and MSD results to fall outside <br /> estabkshed QC ktruts <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 (`YR) Spike % Recovery <br /> 0 <br />