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The sludge from pond cleaning will be removed by dragline and trucked to either the <br /> top of the rock tunnel waste pile or to the Sutey refuse pile for disposal. <br /> The ponds discharge at Outfall 016 into Dutch Creek. Mid-Continent will sample the <br /> #016 effluent for aluminum during the time alum is used in the mine water. <br /> We anticipate no need to test the pond cleaning sludge as the use of alum will not be <br /> continuous. <br /> Enclosed are revised pages for insertion in the permit which indicate that alum will be <br /> used as necessary for settling in the tunnel ponds. These should be inserted in Vol. 7, <br /> Chapter 4, replacing pages 5 and 18. <br /> A copy of this request for minor revision is being sent to the Colorado Department of <br /> Health, Water Quality Control Division. <br /> Yours truly, <br /> Diane Delaney <br /> Mid-Continent Res. <br /> 2 <br />