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iii iiiiiiiiuiii iii <br />. 999 <br />GREG LEWICKI AND ASSOCIATES <br />1815 Court Place <br />SuMe 309 <br />Denier. Colaedo 80202 <br />Phone/FAX (30.71629-8036 <br />December 23, 1992 <br />Joe Dudash <br />Mined Land Reclamation Division <br />1313 Sherman Street 2nd Floor <br />Denver, Colorado 80202 <br />Ra: Sediment Pond Certification <br />at the Rimrock Mine. <br />Dear Joe: <br />Enclosed is the certification report for the sediment pond at the <br />Rimrock Mine. i am a certified professional engineer in the State <br />of Colorado with experience in the Eastern and Western United <br />States in the design, construction and operation of sediment <br />ponds and mine hydrology systems. <br />Site inspections were conducted on December 7 and 22, 1992. <br />Inspections and measurements were conducted by myself and Mark <br />Kerr. A precision aye level, stadia rod and measuring tape were <br />used to verify elevations, slopes and dimensions. <br />sincerely yo~u~r~s~ <br />GC rag Lewicki <br />Greg Lewicki and Associates <br /> <br /> <br />_ 1 <br /> <br />