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v.8.7.009. EPA m.a.0.01 <br /> SEWS SLOPE ESTIMATOR <br /> AMW- <br /> 25 <br /> n = 52. <br /> 20 <br /> Sloe = -6.557 <br /> uni s per year. <br /> Mann Kendall <br /> 15 --- - — normal approx. _ <br /> -5.155. <br /> 0 <br /> Decreasing trend <br /> significantat 99% <br /> 10 confidence level <br /> two tailed). <br /> ♦ Critical value = -2.575. <br /> ♦ <br /> 5 ♦ <br /> ♦♦ <br /> 0 <br /> Mar 1994 Jan 2001 Nov 2007 <br /> Constituent: Tetrachloroethylene (ug/L) Facility: Austin Road LF Data File: AUSTINOR <br /> Date: 12/20/07, 9:49 AM Client: Austin Road LF View: Batch <br /> HERST & ASSOCIATES, INC 7 <br />