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v.8.6.005. m.a.0.01 EPA <br /> SEN'S SLOPE ESTIMATOR <br /> AMW- <br /> 25 <br /> 20 n=45. <br /> Slo e=-5.709 <br /> units per year. <br /> Mann Kendall <br /> 15 normal approx. _ <br /> 0 <br /> -3.475. <br /> Decreasingtrend <br /> sigmficanat 99% <br /> 10 ® ® ® confide c level <br /> ® ® ® ® ® two taieI <br /> ® ♦ ®®® ® ® Critical value=-2.575. <br /> 5 <br /> Mar 1994 Feb 2000 Feb 2006 <br /> Constituent: Tetrachloroethylene (ug/L) Facility: Austin Road LF Data File: AUSTINOR <br /> Date: 4/3/06, 9:51 AM Client: Austin Road LF View: Batch <br /> • ® HERST ISOCIATES, INC. <br />