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~. Initial site development work at the McClane Canyon Mine (McClane) was conducted under a USGS approved exploration plan effective December, 1976. The Colorado Mined Land Reclamation Division (now Division of Minerals and Geology) issued a three year permanent regulatory program permit on April 6, 1982, fora 248 acre permit azea. The existing access/haul road and the portal bench face-up developments were in place prior to issuance of the 1982 permit, and no topsoil had been salvaged from these areas. This permit was renewed on July 5, 1985, for an additional three year permit term. The mine was in temporary cessation from January 17, ] 984 to November 17, 1988, when coal production was resumed. On January 27, 1992, the permit was renewed for a five year term. The 1992 renewal incorporated a permit revision which added 2,312 acres to the permit area, and proposed construction of a haul road which would connect the McClane Canyon permit area to the adjacent Munger Canyon permit area, also operated by Grand Valley Coal Company (GVCC). The operations had been transferred from Salt Creek Mining Company to GVCC in March, 1993. There was some coal production at the mine in 1992, and approximately 50,000 tons was produced during January through April, 1997; but for much of its life, the mine has been inactive. The mine has been officially in temporary cessation status since August, 1998. Disturbance to date (February, 1999) is 8.35 acres, with an affected azea of 147 acres. There have been no enforcement actions issued for operations at McClane Canyon Mine during the current permit term, and a review of the inspection and enforcement activities during the first half of the permit term revealed no major on-the-ground problems. The operation is in compliance with the terms and conditions of the approved permit. Section II -Revisions to the Permit Subsequent to issuance of the permit renewal proposed decision on December 31, 1996, GVCC has submitted four (4) minor revisions and one (1) technical revision. Minor Revision 23 was submitted, determined complete, and a proposed approval decision was issued on February 18, 1997. The revision allowed for use of a temporary crusher and fuel tank within the existing facility area during a 2-3 month period of active mining. Minor Revision 24 was submitted on November 6, 1997. The revision was initiated by the operator, and addressed the replacement of three existing metal portal arches with concrete portal structures. The structures would extend 30 feet out from the highwall face, with backfill to be placed along the length of the existing coal outcrop adjacent to the portals. A proposed approval decision was issued on January 9, 1998. The revision increased the reclamation liability amount from $161,147.00 to $164,908.00. This revision has not been implemented. Minor Revision 25 was submitted on January 8, 1998. The revision was initiated by the operator, and addressed replacement of the existing 40'x40' shop building with a 40' x 40'