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v.8.7.009. EPA m.a.0.01 <br /> SEN'S SLOPE ESTIMATOR <br /> AMW- 10 <br /> 100- <br /> n = 49. <br /> 0n = 49. <br /> Slope = -0.24 <br /> units per year. <br /> 6 Mann Kendall <br /> ® normal approx. _ <br /> -2.771. <br /> 0 <br /> Decreasing trend <br /> 4 significanf at 99% <br /> confidence level <br /> two tailed). <br /> Critical value = -2.575. <br /> 20- <br /> 0 <br /> Apr 1995 Jun 2001 Aug 2007 <br /> Hollow symbols indicate censored values. <br /> Constituent: Dichlorodifluoromethane (ug/L) Facility: Austin Road LF Data File: AUSTINOR <br /> Date: 9/28/07, 8:54 AM Client: Austin Road LF View: Batch <br /> ERST SOCIATES, INC:` <br />