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v.8.7.009. EPA m.a.0.01 <br /> SEN'S SLOPE ESTIMATOR <br /> 10 <br /> 8 <br /> n= 44. <br /> Slo e = -0.07 <br /> co <br /> units per year. <br /> co <br /> Mann Kendall <br /> normal approx. _ <br /> 0 -4.262. <br /> Decreasin trend <br /> sigmficanUat 99% <br /> 4 confidence level <br /> (two tailed). <br /> Critical value = -2.575. <br /> 2 <br /> 0 <br /> Mar 1996 Aug 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 /> HERST & A IATES, INC" <br />