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-± VVPSIERN • • III IIIIIIIIIIIIIIII <br />k1JELS_lJC1H 999 <br />INC. <br />_ _ A Suluidiary <br />Wesrem Fuels ~ ~ ~ ! ~ . <br />~. - <br />- = ti,1r~ JUN'1~1 <br />Michael J Weigand, P.E. <br />)IVIS:i,a ,., 7.ili~c,au u.al,~;,.~y ~~ <br />Ffine Mnrurger <br />June 15, 1993 <br />Ms. Erica Crosby <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 Ms. Crosby: <br />Please disregard our correspondence of June 7, 1993. An inspection <br />date of January 4, 1993 was shown in error on this letter. <br />On June 4, 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 refuse area 4 and there <br />is no indication of slope failure. Two seep areas at the north end <br />of pit 2/3 have started to produce small quantities of water. A <br />water quality sample will be taken when flow is adequate, as part <br />of our seep monitoring hydrologic requirements. There is no <br />indication of slope failure in Refuse Area 2/3. <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 600 <br />complete on the toe of sub-area 2-3. These out slopes are stable. <br />Deserado Mine <br />P.0. Box 1061 <br />Rangely Colorado 81648 <br />Telephone 303/675-8431 <br />Telecopier 303/675-5229 <br />