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Sanitas' v.9.5.32 Sanitas software licensed to Geo -Logic Associates. EPA <br />Hollow symbols indicate censored values. <br />7 <br />5.42 <br />3.84 <br />J <br />7 <br />2.26 <br />0.68 <br />-0.9 <br />Sen's Slope Estimator <br />AMW-12 <br />2/18/15 8/2/15 1/14/16 6/27/16 12/9/16 5/24/17 <br />Constituent: Tetrachloroethylene Analysis Run 7/28/2017 4:48 PM <br />Forward Landfill Client: Geo -Logic Associates Data: Austin Org stats <br />n=10 <br />Slope = 1.117 <br />units per year. <br />Mann -Kendall <br />statistic = 40 <br />critical = 27 <br />Increasing trend <br />significant at 98% <br />confidence level <br />(a = 0.01 per <br />tail). <br />• <br />• <br />o <br />O • <br />2/18/15 8/2/15 1/14/16 6/27/16 12/9/16 5/24/17 <br />Constituent: Tetrachloroethylene Analysis Run 7/28/2017 4:48 PM <br />Forward Landfill Client: Geo -Logic Associates Data: Austin Org stats <br />n=10 <br />Slope = 1.117 <br />units per year. <br />Mann -Kendall <br />statistic = 40 <br />critical = 27 <br />Increasing trend <br />significant at 98% <br />confidence level <br />(a = 0.01 per <br />tail). <br />