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Sanitas'"v.9.3.24 For the statistical analyses of ground water by Geologic Associates only. EPA <br /> Hollow symbols indicate censored values. <br /> Sen's Slope Estimator <br /> A -10 <br /> 3 <br /> n=73 <br /> 2.4 <br /> Slope=-0.0465 <br /> units per year. <br /> • <br /> •• ® Mann-Kendall <br /> normal approx. _ <br /> 1.8 -4.815 <br /> critical=-2.33 <br /> • Decreasing trend <br /> significant at 98% <br /> confidence level <br /> (a=0.01 per <br /> 1.2 tail). <br /> • <br /> 0 0 • • • <br /> • <br /> • <br /> 0.6 ' <br /> 00 00 00 • 000 <br /> �0000 000 OOoo <br /> 000 00• <br /> 0 <br /> 0 <br /> 3/3/94 12/23/97 10/14/01 8/5/05 5/27/09 3/18/13 <br /> Constituent: 1 ,1-Dichloroethane Analysis Run 4/19/2013 1:15 PM <br /> Facility: Forward Landfill Client: RSI Data File: AustVOCs <br />