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v.8.7.009. EPA m.a.0.01 <br /> SE 'S SLOPE ESTIMATOR <br /> AMW- 1 <br /> 20- <br /> n = 54.n = 54. <br /> 15 Sloe = -0.776 <br /> units per year. <br /> Mann Kendall <br /> normal approx. _ <br /> z -4.987. <br /> 1 <br /> Decreasing trend <br /> ® significanf at 99% <br /> z ® confidence level <br /> two tailed). <br /> ♦ Critical value = -2.575. <br /> 5 • • <br /> 0 • <br /> Jun 1994 Feb 2001 Nov 2007 <br /> Hollow symbols indicate censored values. <br /> Constituent: Nitrate as N (mg/L) Facility: Austin Road LF Data File: AUSTININ <br /> Date: 12/20/07, 8:45 AM Client: Austin Road LF View: Batch <br /> HERST SOCIATES, INC.." <br />