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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 />Sen's Slope and 98% Confidence Band <br />AMW-19 <br />20 <br />15.6 <br />11.2 <br />J <br />6.8. <br />2.4 <br />-2 <br />8/19/04 <br />n=34 <br />Slope = -0.293 <br />units per year. <br />Mann -Kendall <br />statistic = -331 <br />critical = -158 <br />Decreasing trend <br />significant at 98% <br />confidence level <br />(a = 0.01 per <br />tail). <br />6/7/06 3/25/08 1/11/10 10/30/11 8/17/13 <br />Constituent: Chromium [Hexavalent], Dis. Analysis Run 9/4/2013 1:13 PM <br />Facility: Forward Landfill Client: RSI Data File: Aust2Q13GCSan8 <br />• <br />........... <br />• <br />............ <br />...............o .. <br />..6......A........ <br />... <br />......s <br />®� ��., <br />n=34 <br />Slope = -0.293 <br />units per year. <br />Mann -Kendall <br />statistic = -331 <br />critical = -158 <br />Decreasing trend <br />significant at 98% <br />confidence level <br />(a = 0.01 per <br />tail). <br />6/7/06 3/25/08 1/11/10 10/30/11 8/17/13 <br />Constituent: Chromium [Hexavalent], Dis. Analysis Run 9/4/2013 1:13 PM <br />Facility: Forward Landfill Client: RSI Data File: Aust2Q13GCSan8 <br />