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~~N <br />'~ - eus~s-urex <br />-- = INC. <br />__ _= n syt~;emn- <br />-; ~ <br />-. w~, Bets <br />AfichaelJ. Weigand. P.E <br />Mine Manager <br />September 23, 1992 <br />Ms. Janet Binns <br />Reclamation Specialist <br />Colorado Mined Land Reclamation Division <br />1313 Sherman Street <br />Denver, CO 80203 <br />~ iii iiiiiiiiiiiii iii <br />r r <br />~~E .ti ~ i <br />v. ~ „ <br />MINER,4 c 1 ~", <br />L~ ~ ` <br />~~h.' . <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 September 22, 1992 I performed an inspection of the Deserado <br />Mine 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 />Three small seeps located at the north end of refuse sub-area 2,3 <br />have dried up. A water composite sample taken of the seep water <br />sho~•:ed hig!T sali_^.ity b::t no toxic properties that could effect <br />wildlife or livestock (see attached sheet). No additional seeps <br />were noted during the inspection of sub-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 608 <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 ir. the well. <br />Deserado Mine <br />P.O. Box 1067 <br />Rangely, Colorado 81648 <br />Telephone 303/675-8431 <br />Teleoopier 303/615-52?9 <br />