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v.8.6.005. ma. 0.01 EPA <br />F SLOPE ESTIMATOR <br />rn <br />JU <br />40 <br />♦ <br />3 <br />20 <br />®♦ <br />1 <br />0 < I <br />® ® <br />• <br />n=52. <br />Slo e = 0.487 <br />units per year. <br />Mann Kendall <br />normal approx. _ <br />2.766. <br />Increasin trend <br />significant at 99% <br />confide c level <br />wo tai�e�). <br />Critical value = 2.575. <br />Oct 1991 May 1999 Nov 2006 <br />Hollow symbols indicate censored values. <br />Constituent: Tetrachloroethylene (ug/L) Facility: Austin Road LF Data File: AUSTINOR <br />Date: 1/8/07, 9:32 PM Client: Austin Road LF View: -Batch <br />® 0 #HURST 100CIATES, INC. <br />