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v.8.6.005. ma.0.01 EPA <br /> SEWS SLOPE ESTDAATOR <br /> -2 <br /> 1 <br /> 8 n=49. <br /> ® ♦ Slo e=0.059 <br /> ® ® ® ® ® ® units per year. <br /> ® Mann Kendall <br /> 6 normal approx. _ <br /> 3.165. <br /> w Increasin trend <br /> 4 significant at 99% <br /> confide, c level <br /> two tai ). <br /> Critical value=2.575. <br /> 2- <br /> 0 <br /> Mar 1991 Apr 1999 May 2007 <br /> Constituent: pH [Field] (su) Facility: Austin Road LF Data File: AUSTININ <br /> Date: 7/9/07, 5:43 PM Client: Austin Road LF View: Batch <br /> T <br /> ® HERS i*OCIATES, INC. <br />