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0 0 0 <br />Sanitas' v.9.5.32 Sanitas software licensed to Geo -Logic Associates. EPA <br />4 <br />3.2 <br />2.4 <br />rn <br />1.6 <br />0.8 <br />0 <br />Sen's Slope Estimator <br />AMW-6 <br />2/17/15 8/1/15 1/13/16 6/26/16 12/8/16 5/23/17 <br />Constituent: Tetrachloroethylene Analysis Run 7/28/2017 4:46 PM <br />Forward Landfill Client: Geo -Logic Associates Data: Austin Org stats <br />n=10 <br />Slope = -0.1752 <br />units per year. <br />Mann -Kendall <br />statistic = -13 <br />critical = -27 <br />Trend not sig- <br />nificant at 98% <br />confidence level <br />(a = 0.01 per <br />tail). <br />• <br />• <br />• <br />2/17/15 8/1/15 1/13/16 6/26/16 12/8/16 5/23/17 <br />Constituent: Tetrachloroethylene Analysis Run 7/28/2017 4:46 PM <br />Forward Landfill Client: Geo -Logic Associates Data: Austin Org stats <br />n=10 <br />Slope = -0.1752 <br />units per year. <br />Mann -Kendall <br />statistic = -13 <br />critical = -27 <br />Trend not sig- <br />nificant at 98% <br />confidence level <br />(a = 0.01 per <br />tail). <br />