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Whetstone' <br />Associates <br />DRAINAGE DESIGN PLAN <br />FOR THE <br />JD -7 MINE <br />?14f-C <br />9'� <br />GRAND 3UDNiS�ON t' a, SAFE <br />RECIAMPj1oN M�t� <br />r <br />cotter <br />Prepared for <br />Cotter Corporation (N.S.L) <br />West Slope Operations <br />P.O. Box 700 <br />Nucla, CO 81424 <br />Prepared by <br />Whetstone Associates, Inc. <br />104 W. Ruby Avenue <br />Gunnison, Colorado 81230 <br />970 - 641 -7471 <br />Document 4149A.130926 <br />September 2013 <br />