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~= TerraMatrix ~~ E ineering & Enviromnental Services ~9 1475 Pine Grove Road • PO Box 774018 Steamboat Springs, Colorado 80477 303-879-6260 • tax 303-879-9048 III IIIIIIIIIIIIIIII 999 RECEIVED JAN 1 1 1995 January 10, 1995 Division of Minerals & Geology Mr. Randall Price Division of Minerals and Geology 1313 Sherman Street Denver, Colorado 80203 Re: Kerr Coal Company (Permit No. C-SO-006) 1994 Annual Reclamation Report Dear Mr Price: The following describes all disturbance and reclamation activities which have occurred at the Kerr Coal Mine during the year of 1994. As you are aware, all mining activities were suspended at the end of January, 1993 and reclamation activities were initiated. During 1994 backfilling, regrading, drainage control, topsoiling, and seeding in the 720 Pit and associated overburden stockpile areas were completed in accordance with the approved plan. In addition, backfilling, backsloping, and regrading were completed in Pit 1 in accordance with the approved plan, however, drainage control, and topsoiling were deferred pending resolution of OSMRE concerns. Based on the most recent mutual discussions among Kerr, the DMG and OSMRE, some supplemental backfilling and regrading may be required in the Pit 1 area to resolve AOC concerns and obtain Phase 1 bond release. 1.0 MINING AND TOPSOIL REMOVAL There was no disturbance associated with active mining during 1994. The 720 pit and Pit 1 have been inactive for some time. No topsoil was removed in 1994. 2.0 BACKFILLING AND REGRADING Material remaining in the existing overburden stockpile (OB-2) was removed and placed as final backfill in [he 720 Pit and both areas were regraded to a configuration approximating the approved postmining topography by March 1994. As a result of the DMG/OSMRE Phase 1 bond release inspection in May 1994 and completion of surveys of the regraded areas, some remaining spoil material was identified on the margins of the former overburden stockpile area and it was determined that limited slope areas exceeded final slope design criteria. As a result of these determinations, an additional 150,000 cy of spoil material was removed from the former overburden stockpile area and placed along the base of the regraded slopes in the 720 Pit area and portions of the final slope were regraded to achieve the approved postmining configuration. In addition, minor regrading was conducted in portions of Pit 1 to reduce oversteepened slopes consistent with approved designs. 151/ISAIrtEUiPr 01/WNS 115,- 4T51/o Steamboat Springs, CO • Denver, CO .Seattle, WA • Juneau, AK • Santiago, Chile SA