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i <br /> CONFIDENCE INTERVAL (data) <br /> Constituent:Calcium(mg/L) Facility:Fox River Data File:FR-S-U-I <br /> Date:6/19/06 Time: 10:06 AM View:Calcium <br /> Date Semi* Upper* Intrmd* <br /> 10/09/02 41.5 116 39.5 <br /> j 01/30/03 27 <br /> I 05/01/03 46.5 145 29 <br /> 07/23/03 44.5 <br /> I 10/14/04 49.5 170 42 <br /> 01/26/05 23.5 <br /> 10/11/05 51 170 33.5 <br /> 01/25/06 22 <br /> Mean 38 150 36 <br /> Std.Dev. 12 26 5.9 <br /> Upper Lim 51 209 49 <br /> Lower Lim 25 92 23 <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br /> l <br /> i <br /> i <br /> Asterisk indicates background data <br /> x.1.56. CASH n/a ___— WQStat Plus" <br />