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0 0 0 <br /> v.8.7.009. EPA m.a.0.01 <br /> SEN'S SLOPE ESTIMATOR <br /> 40 <br /> ® ® ® n = 19. <br /> 30 ® ® units per ye0ar 1 <br /> Mann Kendall <br /> statistic = 96. <br /> LZ <br /> 0 20 Trend significant <br /> ♦ at 99% confidence <br /> LZ level (two tailed). <br /> Critical value = 4. <br /> 100- <br /> 0 <br /> Mar 2004 Aug 2006 Feb 2009 <br /> Constituent: Bicarbonate as CaCO3 (mg/L) Facility: Austin Road LF Data File: AUSTININ <br /> Date: 3/10/09, 3:05 PM Client: Austin Road LF View: Batch <br /> ERST & ASSOCIATES, INC® <br />