Laserfiche WebLink
::; <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.net <br />October 8, 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 />~C-~9-07~ <br />Dear Kent: <br />®~R~cF~~Fp <br />o;y~nofM' j ~ ~ <br />~,ajs~G~ <br />'~ <br />3r~Q ZD~~ <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 September 30, 2001. The sediment pond was <br />impounding water near the dam and the pipe inlet. Maximum depth was approximately <br />2.0 feet. Apparently a large thundershower had taken place the previous day. It was <br />evident that cattle had grazed somewhat recently within the mine reclaimed area. <br />Sincerely yours, <br />(~ ~~_ <br />Greg Lewicki, P.E. <br />Greg Lewicki and Associates <br />