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• • III IIIIIIIIIIIII III <br />Greg Lewicki And Associates <br />April 10, 2000 <br />911$4 S. Forrest Drirc <br />Ili~hlands Ranch. CO USA 8D126 <br />Kent Gorham <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 />Dear Kent: <br />Phunc!Fax: (J113)3db-i19G <br />F-17ai1: lcycickiria cnvisiunet.uct <br />RECFivE~ <br />APR 17 2000 <br />Division ofMiner~+s & Geolo~j <br />~Q <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 [he <br />Eastern and Western Uniled 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 March 31, 2000. The sediment pond was almost <br />dry except for 3 inches of water in the low area near the principal spillway inlet. <br />Sincerely yours, <br />d~~~ "" ." <br />~~ <br />Greg Lewicki, P.E. <br />Greg Lewicki and Associates <br />