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Sanitas' v.9.3.25 For the statistical analyses of ground water by Geologic Associates only. EPA <br />Hollow symbols indicate censored values. <br />20 <br />15.6 <br />11.2 <br />J <br />6.8 <br />2.4 <br />-2 <br />4/12/95 <br />Sen's Slope and 98% Confidence Band <br />AMW-10 <br />12/16/98 8/21/02 <br />n=39 <br />Slope = -0.2206 <br />units per year. <br />Mann -Kendall <br />statistic = -325 <br />critical = -194 <br />Decreasing trend <br />significant at 98% <br />confidence level <br />(a = 0.01 per <br />tail). <br />4/26/06 12/30/09 9/4/13 <br />Constituent: Chromium [Hexavalent], Dis. Analysis Run 9/4/2013 1:13 PM <br />Facility: Forward Landfill Client: RSI Data File: Aust2Q13GCSan8 <br />0 0 0 <br />• <br />• <br />0 0 <br />..�• • <br />® <br />........ <br />..•.....,......® <br />................ <br />......,..,...... <br />• <br />0 0000000® <br />O <br />12/16/98 8/21/02 <br />n=39 <br />Slope = -0.2206 <br />units per year. <br />Mann -Kendall <br />statistic = -325 <br />critical = -194 <br />Decreasing trend <br />significant at 98% <br />confidence level <br />(a = 0.01 per <br />tail). <br />4/26/06 12/30/09 9/4/13 <br />Constituent: Chromium [Hexavalent], Dis. Analysis Run 9/4/2013 1:13 PM <br />Facility: Forward Landfill Client: RSI Data File: Aust2Q13GCSan8 <br />0 0 0 <br />