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iiiiiiiiiiiiiiiiiii <br />Greg Lewicki And Associates <br />9054 S. Forrest Drive <br />Highlands Raoch, CO USA 80126 <br />Phone/Fax: (303) 346-5196 <br />E-Mail lewic ld,a~envisione t.net <br />RECEIVED <br />April 2, 2001 <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 />APR 0 5 2001 <br />Division of Minerals 8 Geology <br />Sf Q oZ00 <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 March 31, 2001. The sediment pond was dry and <br />the ground was also relatively dry. Cattle were present on the outside of the main <br />entrance fence but could not get into the reclaimed area due to the shut gate. <br />Sincerely yours, <br />~y ~e <br />Greg Lewicki, P.E. <br />Greg Lewicki and Associates <br />