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~, ~ ~ III IIIIIIIIIIIII III <br />~~~ <br />=_ = inc. <br />A Su(mdiarP <br />Wes(em Fuels ~ ~ aeY 6~®. @ ~ Ha <br />__ Aw7aa(im,. Irrt. <br />NOV 7, 1989 <br />~:1¢hael I ueigand P.E <br />11mr Jemn,e„ MINED L~;~_U <br />REC:A1AaTIG~N DIVf~;fl)7J <br />October 27, 1989 <br />Mr. Tom Gillis <br />Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street <br />Denver, CO 90203 <br />Re: Annual Professional Certification Document for D-Portal <br />Sediment Control Pond (DP-1) on the Deserado Mine Property, <br />Bonanza Power Project File No. C-018-81. <br />Dear Mr. Gillis: <br />On October 25, 1989, I performed an inspection of the Deserado Mine <br />D-Portal Sediment Control Pond (DP-1) N.P.D.E.S. permit #001. <br />I am a professional engineer registered in the State of Colorado <br />and my experience fulfills the requirements of the Colorado Surface <br />Coal Mining Reclamation Act. <br />The purpose of my inspection and certification was to ensure proper <br />construction of the D-Portal Sediment Control Pond and to satisfy <br />the requirements of Rule 4.05.6 (11) (a) of the Colorado Mined Land <br />Reclamation Board. In completing my certification, I have <br />conducted an inspection of the D-Portal Sediment Control Pond and <br />construction site. <br />The dam inspecticn sho:•~ed no problems concerning cracking, erosion, <br />rodent activity, or displacements in the following areas; upstream <br />face, downstream face, and the crest. No seepage was located on <br />any of the dam areas. The outlet conduit was in good shape and no <br />leakage was noted. The emergency spillway showed no signs of <br />deterioration or erosion and the riprap was in good condition. No <br />effluent quantity of color could be noted at inspection time, since <br />the pond was not discharging at the outlet. <br />The top soil pile for this area has been seeded and shows stable <br />vegetation growth. Removal and stock piling of: all organic <br />material and topsoil prior to water impounding has been completed. <br />Deserado Mine <br />P.O. Box 1067 <br />Rangely. Colorado 81648 <br />Telephone 3031675-8431 <br />Telecapier 301; 675-i'_?9 <br />