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v.8.7.009. EPA m.a.0.01 <br /> SEN'S SLOPE ESTIMATOR <br /> -1 <br /> 80 <br /> n = 44. <br /> 60 Sloe = -8.505 <br /> units per year. <br /> Mann Kendall <br /> normal approx. _ <br /> -3.371. <br /> CZ140 Decreasin trend <br /> significanUat 99% <br /> E0 ♦ confidence level <br /> • ♦® ® (two tailed). <br /> Critical value = -2.575. <br /> 20 <br /> 0 <br /> Mar 1991 Aug 1999 Feb 2008 <br /> :onstituent: Total Dissolved Solids [TDS] (mg/L) Facility: Austin Road LF Data File: AUSTININ <br /> Date: 4/10/08, 9:19 AM Client: AustiaXoad LF View: Batch <br /> QW <br /> HERST SOCIATES, INC.- <br />