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~~ a ~ w~oa~~a.ci,rae <br />consultants <br />~j phreatic levels within the dams. The study sections contain primarily open well <br />piezometers with a few isolated tip piezometers. <br />~~ March 17, 1992 our Messrs. Al Gipson and Pete Stauffer visited the Henderson Mill and <br />~~ toured Dam No. l to initiate this study. Existing information in the Henderson Mill files <br />and in our files in Denver was reviewed in preparation for the subsequent work. <br />~~ Information that was particularly useful to this study included: historic Luling grind <br />summaries as provided by Henderson Mill personnel; historic piezometer water level <br />readings provided by Henderson Mill personnel; "Evaluation of Tailing Grind on Tailing <br />~~ Dam Stability" WCC report dated January 26, 1990; and "Piezometer Installation for <br />ii Tailing Dam No. 1" WCC report dated September 24, 1987. <br />1~ <br />~~ <br /> <br />'f <br />~~ <br />9 <br />nssvA~.: oam•rtnrr 2-2 <br />