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<br />~ III IIIIIIIIIIIII III <br />Greg Lewicki And Associates <br />October 4, 1999 <br />1645 Court Place, Suite 309 Phone/Fax: (303) 629-9335 <br />Denver, CO USA 80202 E-Mail: lewickina_,envisionet.net <br />RECEIVED <br />Kent Gorham <br />Mined Land Reclamation Division <br />1313 Sherman Street 2nd Floor <br />Denver, Colorado 80202 <br />Re: Sediment Pond Certification at the Rimrock Mine. <br />Dear Kent: <br />OCT 13 1999 <br />O~ano/Murals 8 <br />Ge0b9Y <br />3r~~ ~~~~ <br />This document is the most recent certification of the sediment pond at the Rimrock 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 sediment <br />ponds, mine hydrology systems and slope stability of embankments. <br />A site inspection was conducted on September 2, 1999. The sediment pond was wet only <br />in the very lowest portion from a recent rain. Inspection of the discharge pipe showed <br />that the level never rose to the point that water was dischazged from the structure. <br />Sincerely yours, <br />d~2~~~t~ <br />~~ <br />Greg Lewicki, P.E. <br />Greg Lewicki and Associates <br />