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<br />~~~, ~ - ~ IIIIIIIIIIIIIIIIIII <br />~~.~ <br />,~~. <br />SufuiAurm <br />of <br />Re#em fuels <br />,ticmrnriaa /nc. June 2, 1987 <br />Mr. Tan Gillis '~ ~ ~ ~ E v ~ M <br />Reclamation Specialist JUN 051987 <br />Colorado Mined Land Reclamation Division <br />1313 Sherman street MANED LAND <br />Denver, CO 80203 <br />RECLAMATION DIVISIO <br />RE: Professional Certification Dociunent for the Coal Processing Waste <br />Bank on Deserado Mine Property, Bonanza Power Project File No. C-018-81. <br />Dear Mr. Gillis: <br />~ May 22, 1987, I performed an inspection of the Deserado Mine refuse pile <br />sub-areas 1 and 2-3. <br />I am a professional engineer registered in the State of Colorado and my <br />experience fulfills the requirements of Colorado Surface Coal Mining <br />Reclamation Act. <br />The purpose of my inspection and certification was to ensure proper construction <br />of the refuse pile and to satisfy the requirements of Rule 4.09 1 (11) of the <br />Colorado Mined Land Reclamation Board. In completing my certification, I have <br />conducted an inspection of the refuse sub-area 1 and 2-3 piles and construction <br />site. <br />There are no apparent points of seepage in the pile, and there is no indication <br />of slope failure. The surface drainage facilities were adequately maintained <br />and were working properly. No subdrain system is required by our permit, since <br />geotechnical investigation for the disposal site revealed no ground water present. <br />Permanent out slopes have not yet begun to be built. <br />We have now, to date, a total of 324,337 tons of refuse placed in sub-area 1, <br />and 269,041 tons placed in sub-area 2-3. <br />Both the topsoil and subsoil piles for those areas have been seeded and are <br />stable. Removal of stock piling of all organic material and topsoil prior <br />to disposal of refuse has been completed. <br />Due to an improvement in coal quality resulting fran our new Longwall operation, <br />we are nva able to utilize filter cake fran our preparation plant in our clean <br />coal product. This very fine material was previously rejected to refuse. <br />Consequently, the physical properties of our refuse has changed dramatically, <br />and we are producing less volwne of refuse material. FVe are presently doing <br />Deserado Mine <br />P.O. Box 1067 <br />Rangely, Colorado 802L8 <br />Telephone 303/675-8431 <br />Teleoopier 30,'675-5?L9 <br />