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• <br />~ III IIIIIIIIIIIIIIII <br />Greg Lewicki And Associates <br />9054 S. Forrest Drive Phone/Fax: (303) 346-5196 <br />Highlands Ranch, CO USA 80126 E-Mail: lewicki!a~envisionet.oet <br />ABoloag Pae sla~amry )o uoista~Q <br />January 8, 200] ~~OZ Z ~ Nb~ <br />Kent Gorham a3/113~3~! <br />Division of Minerals and Geology <br />1313 Sherman Street 2nd Floor <br />Denver, Colorado 80202 <br />Re: Sediment Pond Certification at the Rimrock Mine,./ <br />'y' t~ ZDOo <br />Dear Kent: <br />This document is the most recent certification of the sediment pond at the Rimrock <br />Mine. <br />I am a certified professional engineer in the State of Colorado with experience in the <br />Eastern and Western United States in the design, construction and operation of <br />sediment ponds, mine hydrology systems and slope stability of embankments. <br />A site inspection was conducted on December 16, 2000. The sediment pond was dry <br />and the ground was also relatively dry. There was evidence of significant cattle grazing <br />on the site during the fall months. <br />Sincerely yours, <br />~, <br />Greg Lewicki, P.E. <br />Greg Lewicki and Associates <br />