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~~ <br />- - ~~_~ <br />~~. <br />?- = ASudadiary <br />Werlern Fuels <br />Awdn(ion, /nc <br />Michael J. Weigand. P.E. <br />,tlrne dfanager <br />January 27, 1993 <br />~~ <br />Ms. Janet Binns <br />Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street <br />Denver, CO 80203 <br />~ III IIIIIIIIIIIIIIII <br />1~~.~ <br />.. .-. ;~ <br />~Fe ~ ~ 199 <br />M~NF9~~..:... .., <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 Ms. Binns: <br />On January 26, 1993 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 no <br />indication of slope failure. <br />The surface drainage facilities were adequately maintained and were <br />working properly. No subdrain system is required by our permit, <br />since geotechnical investigation for the disposal site revealed no <br />ground water present. Permanent out slopes are approximately 60°s <br />complete on the toe of sub-area 2-3. These out slopes are stable. <br />A groundwater monitoring well has been installed between sub-area <br />1 and sub area 2-3. To date no water has accumulated in the well. <br />Sub-area 1 has been reclaimed and is no longer in use. To date, a <br />total of 1,530,333 tons of refuse have been placed in sub-area 2-3. <br />Lifts are being placed at the north end of sub-area 4 and a total <br />of 604,635 tons of refuse have been placed to date. <br />Deserado Mine <br />P.0. Boz 1061 <br />Rangely, Colorado A1648 <br />Telephone 303/615-tH3l <br />Telecopier 30i/675-i'39 <br />