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v~rw ~ • <br />,, <br />fve~s-vax <br />nvc. <br />A Sudddiary <br /> <br />Wetlem £ue& <br />Aroxi°lbn, fx <br />Michael J. Weigand, P.E. <br />~M°^°g~ RECEIVE <br />APR p 81994 <br />March 31, 1994 <br />Ci°i^ion c1 rmner4~:: a uec~cgy <br />Ms. Barbara Pavlik <br />Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street <br />Denver, CO 80203 <br />Re: Professional Certification <br />Waste Bank on Deserado Mine <br />File No. C-018-81. <br />Document for the Coal Prdcessing <br />Property, Bonanza Power Project <br />Dear Ms. Pavlik: <br />On March 23, 1994 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 80% <br />complete on the toe of sub-area 2-3 and approximately 20°s complete <br />on the toe of refuse area 4 pile. These out slopes are stable. A <br />groundwater monitoring well has been installed between sub-area 1 <br />and sub area 2-3. To date no water has accumulated in the well. <br />Deserado Mine <br />P.O. Box 1067 <br />Rangdy, Colorado 81648 <br />Trlephone 303/675-8431 <br />earz 303 7675-52 29 <br />