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ii i i ii i ii i ii iiii iii STATE ON Lvivtctiil0 MINED LAND RECLAMATION DIVISION Department of Natural Resources 1313 Sherman SI., Room 2r5 Denver. CO 80203 303 8663567 Fax 303 832~8t06 February 8, 1994 To: Steve Renner From: Janet Binns Re: 1993 Coal Reclamation Awards Large Underground Mine pF ~O ti`s ~4 ~. i, 'p C~~,--JJ_... 'rave' Rpy Rgne~ Gwerror M~chaei B Long, Dins~on D~reclo~ Erica Crosby and I would like to nominate Powderhorn Coal Company for their reclamation work conducted at the Roadside and Cameo Mine (C-81-041) for work completed at the North Decline area. The North Decline area is located in N'/~ NE'/< Section 34 and NW'/< NW'/a Section 35, Township 10 South, Range 98 W, of the 6th Prime Meridian and comprises 18.3 acres. The North Decline area is adjacent to 1-70 and is highly visible from the highway. A short history on this location indicates that portions of the permit area have been mined since the 1890's. The North Decline area was disturbed prior to the enactment of the permanent regulatory coal program. Portal construction at the North Decline was initiated in the early 1970's. Use of the portal was discontinued and sealing of the portal occurred in 1990. Since this area was disturbed "pre-law" no topsoil was salvaged. The operator had been approved in the permit to reclaim the North Decline area with a variance to approximate original contour. Excavated material from the portal decline had been approved to remain in a "U" shaped 30 ft. tall hill encircling the backfilled portal. (Permit Maps 12B and 12C) A reclaimed drainage that crossed the site from upland undisturbed area to a highway culvert running under I-70 had been designed to contain an abrupt 90° turn. In early March 1992 the operator submitted a revision to modify the final regraded contours to more closely align with approximate original contours and blend more readily with the surrounding undisturbed landscape. This revision was approved by the Division as TR-13. The revision also proposed realignment of the channel with a general sinuosity and eliminated the abrupt 90° turn. These modified contours required considerably more earthmoving work to be performed by the operator. Initial earthmoving at the North Decline commenced in March 1992. Care was taken during the reclamation work to salvage existing shrubs in the northern part of the site where