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v.8.7.009. EPA m.a.0.01 <br /> SEWS SLOPE ESTIMATOR <br /> AMW-5/5R <br /> 4 <br /> n = 48. <br /> 3 Slope = 1.279 <br /> ® units per year. <br /> Mann Kendall <br /> normal approx. _ <br /> z 6.688. <br /> Q <br /> 20- <br /> Q) Increasiniz trend <br /> LZsignifican at 99% <br /> z confidence level <br /> (two tailed). <br /> ® ♦ ® Critical value = 2.575. <br /> 1 <br /> 0 <br /> Mar 1994 Feb 2001 Feb 2008 <br /> Hollow symbols indicate censored values. <br /> Constituent: Nitrate as N (mg/L) Facility: Austin Road LF Data File: AUSTININ <br /> Date: 4/10/08, 1:14 PM Client: Aus oa <br /> ' d LF View: Batch <br /> HERST & ASSOCIATES, INC." <br />