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v.8.7.009. EPA m.a.0.01 <br /> SENS SLOPE ESTIMATOR <br /> AMW- 14 <br /> 30 <br /> 25 n= 56. <br /> Sloe = -0.042 <br /> units per year. <br /> 20 Mann Kendall <br /> normal approx. _ <br /> -3.114. <br /> ta 15 <br /> Decreasin trend <br /> sigmficanUat 99% <br /> s confidence level <br /> 10 (two tailed). <br /> Critical value = -2.575. <br /> 50- <br /> 0 <br /> Jul 1995 Jun 2002 May 2009 <br /> Hollow symbols indicate censored values. <br /> Constituent: Dichlorodifluoromethane (ug/L) Facility: Austin Road LF Data File: AUSTINOR <br /> Date: 6/12/09, 10:40 AM Client: Austin Road LF', View: Batch <br /> ERST & A IATES, INC <br />