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999 <br /> <br />Waste Bank Design <br />Summary Report <br />(1997 Waste Bank Enlargement Project ) <br />National King Coal Mine <br />No. C-81-035 <br />Durango, Colorado <br /> <br />prepared by; <br />Don R. May, P.E. <br />735 East 7"' Avenue <br />Durango, CO 81301 <br /> <br />November 1993 <br />revised July 1997 <br />revised November 1997 <br />revised December 1997 <br />`'~'~ U~ f `O'{: <br />dw,' ~~ C,•a ''v T, i„~ <br />..~ <br />' `<\ dJ / <br />~ ~: J ~ ~;. <br />~ .y , , <br />'obi;; •c... <br />January 1998 <br />