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j~~ ~, • , ii iiii iiiiii iiu iii <br />_- - ,r~. R <br />_ A Subsrdlary <br />of ~L~i~~ <br />~es~ Fu~~ <br />~~~n, l„~. MAR 2 5 1891 <br />Mined Lana <br />Reciam2tian Oi;;;sion <br />March 21, 1991 <br />Mr. Randall Price <br />Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street <br />Denver, CO 80203 <br />Re: Professional Certification Document for the Coal Processing <br />waste Bank on Deserado Mine Property, Bonanza Power Project <br />File No. C-018-81. <br />Dear Mr. Price: <br />On March 21, 1991 I performed an inspection of the Deserado Mine <br />refuse pile sub-areas 2-3 and 4. <br />I am a professional engineer registered in the State of Colorado <br />and my experience fulfills the requirements of Colorado Surface <br />Coal Mining Reclamation Act. <br />The purpose of my inspection and certification was to ensure proper <br />construction of the refuse pile and to satisfy the requirements of <br />Rule 4.09 1 (11) of the Colorado Mined Land Reclamation Board. <br />There are no apparent points of seepage in the pile, and there is <br />no indication of slope failure. The surface drainage facilities <br />were adequately maintained and were working properly. No subdrain <br />system is required by our permit, since geotechnical investigation <br />for the disposal site revealed no ground water present. Permanent <br />out slopes have been started on the toe of sub-area 2-3. These out <br />slopes are stable. A groundwater monitoring well has been <br />installed between sub-area 1 and sub area 2-3. To date no water <br />has accumulated in the well. <br />Sub-area 1 has been reclaimed and is no longer in use. To date, a <br />total of 1,259,710 tons of refuse have been placed in sub-area 2-3. <br />Construction of sub-area 4 has been completed. Lifts are being <br />placed at the north end of sub-area 4 and a total of 79,210 tons of <br />refuse have been placed to date. <br />Deserado Mine <br />P.O. Box 1061 <br />Rangely Culoredo 816f8 <br />Telephone 303/675-8431 <br />Telempier 303/675-52?9 <br />