Laserfiche WebLink
<br />-iy. <br />WFSIERN <br />FULIS-IfG1H <br />PVC. <br />A SaLuidiary <br />of <br />W~rfa~2r <br />Amciali0n, /nc <br />• <br />Michael J. Weigand, P.E. <br />Mine,Nanager <br />December 18, 1992 <br />Ms. Janet Binns <br />Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street <br />Denver, CO 80203 <br />• III III III III IIII III <br />989 <br />R~c,~~~~ <br />D~~z11g9 '~ <br />M/~yE po~~vj~~c 2 - <br />W~ %yC'~ <br />3U ~` <br />EG; ,- <br />~•.. r <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 December 17, 1992 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 perr,:it, <br />since geotechnical investigation for the disposal site revealed no <br />ground water present. Permanent out slopes are approximately 60~ <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 546,242 tons of refuse have been placed to date. <br />[kserada Atine <br />P.O. Box 1061 <br />Rangely, Coloredo 81648 <br />Telephone 303/675-8431 <br />Telempier 303/675-5229 <br />