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0 0 0 <br /> v.8.6.005. ma.0.01 EPA <br /> SEWS SLOPE ESTIMATOR <br /> AMW-13 <br /> 60 <br /> 500 n=31. <br /> ♦ ® Slope=9.231 <br /> ®® <br /> units® um per year. <br /> CC540 ♦ Mann Kendall <br /> ® ♦ statistic=217. <br /> 30 Trend significant <br /> ♦ at 99%confidence <br /> level(two tailed. <br /> Critical value= 52. <br /> 20 <br /> 10 <br /> 0 <br /> Aug 1991 Nov 1998 Feb 2006 <br /> Constituent: Bicarbonate as CaCO3 (mg/L) Facility: Austin Road LF Data File: AUSTININ <br /> Date: 3/31/06, 10:44 AM Client: Austin Road LF View: Batch <br /> HERST & ASSOCIATES, INC. <br />