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i <br /> CONFIDENCE INTERVAL (data) <br /> Constituent:Potassium(mg/L) Facility:Fox River Data File:FR-S-U-I <br /> I <br /> Date:6/19/06 Time: 10:15 AM View:Potassium <br /> j Date Semi* Upper* Intrmd* <br /> 11/18/93 3.4 10.65 5.75 <br /> 03/09/94 1.75 <br /> 12/16/94 2.5 6.8 4.95 <br /> 03/01/95 0.85 <br /> 06/09/95 2.35 7 4.8 <br /> 09/08/95 1.3 <br /> 11/17/95 2.3 7 4.25 <br /> 02/14/96 0.8 <br /> 11/14/96 2.1 8.4 4.85 <br /> 03/07/97 0.8 <br /> 12/18/97 2 12 8.5 <br /> 03/06/98 1 <br /> 12/10/98 2.5 4 6 <br /> 03/18/99 1 <br /> 11/11/99 3.5 9 5.5 <br /> 02/10/00 1 <br /> 10/12/00 2 9 5.5 <br /> 04/11/01 2.5 8 5 <br /> 07/12/01 1 <br /> 10/09/02 2 8 5 <br /> 05/01/03 4 9 7 <br /> 07/23/03 4 j <br /> 10/14/04 4 10 9 <br /> 01/26/05 1 <br /> 10/11/05 11.4 5.25 <br /> Mean 2.1 8.6 5.8 <br /> Std.Dev. 1.1 2.1 1.4 <br /> Upper Lim. 2.6 10 6.8 j <br /> Lower Lim 1.5 7.1 4.8 <br /> i <br /> i <br /> i <br /> I <br /> I <br /> I <br /> i <br /> I <br /> Asterisk indicates background data <br /> 2A.56. cnsa n/a <br /> WQStat Plus- <br />