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v.8.7.009. EPA m.a.0.01 <br /> SEWS SLOPE ESTIMATOR <br /> 25 <br /> ® n = 59. <br /> 20 <br /> Sloe = -4.11 <br /> uniPs per year. <br /> Mann Kendall <br /> 15 normal approx. _ <br /> -6.006. <br /> Cd ®® Decreasin trend <br /> LT5 ♦ ♦ significanUat 99% <br /> 10 ® ® confidence level <br /> (two tailed). <br /> ® ♦ ♦ ® Critical value = -2.575. <br /> 50- <br /> 01 <br /> Jun 1994 Oct 2001 Feb 2009 <br /> Constituent: Sulfate as SO4 (mg/L) Facility: Austin Road LF Data File: AUSTININ <br /> Date: 3/10/09, 3:06 PM Client: Austin Road LF View: Batch <br /> ERST & ASSOCIATES, INC" <br />