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v.8.7.009. EPA m.a.0.01 <br /> E 'S SLOPE ESTIMATOR <br /> 50 <br /> n = 56. <br /> 40 <br /> Slo e = -0.778 <br /> units per year. <br /> Mann Kendall <br /> 0 3 Q normal approx. _ <br /> 0 -5.612. <br /> Decreasin trend <br /> significantat 99% <br /> 20 confidence level <br /> (two tailed). <br /> Critical value = -2.575. <br /> 10 <br /> 0 <br /> Apr 1995 Mar 2002 Feb 2009 <br /> Hollow symbols indicate censored values. <br /> Constituent: Dichlorodifluoromethane (ug/L) Facility: Austin Road LF Data File: AUSTINOR <br /> Date: 3/11/09, 8:33 AM Client: Austin Road LF View: Batch <br /> ERST & ASSOCIATES, INC <br />