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1 <br />The only observed secondary mineralization with acid-generating potential was on B- <br />level at an elevation of approximately 12,250 feet msl. The expected equilibrium <br />water level of the flooded mine workings lif surface water inflow to the mine from <br />Sunnyside Basin is largely abated) is just below F-level. Hence, all of the sampled <br />mineral crusts are expected to be above the equilibrium water level. The only <br />observed mineral crusts with significant acid•generatingcapacfty were at an elevation <br />of 12,250 feet: over 700 feet higher than the expected equilibrium water level. <br />Hence, stored acidity in secondary mineralization is not expected to be a significant <br />problem. <br />wnnylwp1ne612251',Mr198~ rb~ 72 <br />11:1 S1171011 HYDRO-SEARCH <br />