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STATE OF COLORADO <br /> DIVISION OF MINERALS AND GEOLOGY <br /> Department of Natural Resources <br /> 1313 Sherman St.,Room 215 <br /> Denver,Colorado 80203 D I V I S I O N O F <br /> Phone:(303)866-3567 M IN E RA L S <br /> FAX:(303)832-8106 & <br /> GEOLOGY <br /> RECLAMATION <br /> MINING-SAFETY <br /> April 11, 2000 <br /> Bill Owens <br /> Governor <br /> MEMO Greg E.Walcher <br /> Executive Director <br /> TO: Michael Long, David Bucknam Michael B.Long <br /> Division Director <br /> FROM: Steve Renner --_ <br /> RE: Coal Basin Reclamation, 2000 Construction Plans <br /> am drafting reclamation plans and Invitations for Bid in order to substantially <br /> complete the majority of the remaining reclamation related tasks at the Coal <br /> Basin Mine this coming construction season. The majority of the remaining work <br /> to be accomplished is on properties managed by the White River National Forest. <br /> Earlier in the year I provided the Forest Service with our conceptual reclamation <br /> plans. The Forest Service recently responded favorably to our proposals. I am <br /> attaching a copy of their approval to this memo. <br /> Following is a description of the various Projects which I am anticipating to Bid <br /> this summer. Please let me know if you have questions or comments, would like <br /> any clarifications, or if you would like more information about any Project. <br /> South Basin Road Reclamation Proiect: The remaining roads to be reclaimed <br /> are Roads B, C, D and Huntsman Ridge Road. Road C accesses Mine 4, Road <br /> D accesses Mines 1 and 2, and Road B connects the Lamp House to Roads C <br /> and D. The Huntsman Ridge Road begins at Mine 4, and accesses the west <br /> side of Huntsman Ridge. The road reclamation concept is to minimize erosion <br /> and sedimentation from the roads, including adjacent cut and fill slopes, by <br /> restoring the natural hydrologic functions of the drainage systems that the roads <br /> intercept. Generally, reclamation of Roads B, C and D will entail removing the <br /> road drainage culverts and the inside drainage ditch. Rolled dips or low water <br /> crossings will be constructed at significant drainage points, at stream crossings, <br /> or as needed to dissipate upslope flow. The road gradient will be reversed so <br /> that a slope of between two and ten percent, as viewed in cross section, will be <br /> constructed to the outside margin of the road. The road remnant will be ripped, <br /> roughened and revegetated. The road `prism' will remain. Cut and fill slopes <br /> adjacent to Roads B and C will be scarified and revegetated in conjunction with <br /> the road work (this was accomplished adjacent to Road D in 1999). Huntsman <br /> Ridge Road is rapidly decaying as a result of natural processes. Therefore, <br />