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•:i s_ R'ESIERN • <br />-_ Fl1E1S-UGH <br />_= __ ~C. <br />-_ __ A SuEttiGiary <br />_ _ ~ <br />_ Western Fue(r <br />--- = Attnaaliorr, Inc. <br />Michael J. Weigand, P.E. <br />Mate Mnrtn(;er <br />December 22, 1993 <br />Ms. Barbara Pavlik <br />Reclamation Specialist <br />Division of Mineral and Geology <br />Office of Mined Land Reclamation <br />1313 Sherman Street <br />Denver, CO 80203 <br />Re: Annual Professional Certification <br />Control Ponds (List Attached) on the <br />Bonanza Power Project File No. C-018-81. <br />Dear Ms. Pavlik: <br />~ III Illllllllllll 1111 <br />J~'L <br />. st~Il~`' <br />J <br />Document for All Sediment <br />Deserado Mine Property, <br />On December 16 and 17, Tim Chervick, Environmental Coordinator, <br />performed an inspection of all Sediment Control Ponds at the <br />Deserado Mine. I have assigned Tim Chervick as my designated <br />inspector. <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 this inspection and certification was to ensure <br />proper construction of all Sediment Control Ponds and to satisfy <br />the requirements of Rule 4.05.6 (11) (a) of the Colorado Mined Land <br />Reclamation Board. In completing this certification, an inspection <br />was conducted of all Sediment Control Ponds and construction site. <br />The inspection showed no problems at the DP-1 Sediment Pond <br />concerning cracking, erosion, rodent activity, or displacements in <br />the following areas; upstream face, downstream face, and the crest. <br />No seepage was located on any of the dam areas. The outlet conduit <br />was in good shape and no leakage was noted. The emergency spillway <br />showed no signs of deterioration or erosion and the riprap was in <br />good condition. No effluent quality could be noted at inspection <br />time, since the pond was not discharging at the outlet. <br />Deserado Mine <br />P.O. Box 1067 <br />Rangely, Colorado 81648 <br />'Rlephone 303/675-&31 <br />Fax 303/675-52?9 <br />