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v.8.6.005. ma.0.01 EPA <br /> SEWS SLOPE ESTIMATOR <br /> AM-7 <br /> 6 <br /> 5 n=63. <br /> ® ® ® ®♦ Slope=0.351 <br /> 4 units per year. <br /> ♦ Mann Kendall <br /> normal approx. _ <br /> ® 7.639. <br /> IZ <br /> 3 Increasin trend <br /> 0000 <br /> ® ® ® significant at 99% <br /> confide, c level <br /> 2 (two tailnec). <br /> ® t;ntical value=2.575. <br /> 1 <br /> 0 <br /> Aug 1991 Jun 1999 May 2007 <br /> Hollow symbols indicate censored values. <br /> Constituent: Nitrate as N(mg/L) Facility: Austin Road LF Data File: AUSTININ <br /> Date: 7/9/07, 6:31 PM Client: Austin Road LF View: Batch <br /> HERST & ASSOCIATES, INC. <br />