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to retain a "third-party" contractor(s) to reclaim the disturbed mine area. These costs were developed in 1983 and reflect the potential costs to reclaim the mine area. Sun Coal estimated approximately 78.5 disturbed acres, or approximately 40 percent, of the permit area required restoration. Prior to establishing 1983 bonding limits, 23 acres had already been reclaimed in accor- dance with CMLRD requirements. Equipment costs were taken from the 1981 edition of the Rental Rate Blue • Book for Construction Equipment. Equipment performance factors and capabilities are based on Edition 11 of the Caterpillar Performance Handbook. Seed costs were obained from Native Plants, Inc., in Salt Lake City, Utah. Costs included both the cost of equipment and maintenance, depreciation, and operator time to run the machinery. An "average" operator was assumed to allow for some inex- perience, as might be encountered in subcontracting the work. It was assumed that all listed equipment was readily available for rental from local sources. The steps in reclamation include backfilling and rough grading, overburden scarification, topsoil application and sampling, fertilizing, seedbed prepara- tion, seeding, fencing, pond maintenance, and; after bond release, pond removal. Each of these operations, with the equipment and materials to be used to accomplish the work, are discussed in the following sections. During the reclamation process, Sun Coal Company's actual costs were E745,840 to return the disturbed mine area to CMLRD approved plan. The reclama- tion activities and associated costs are presented in Appendix 2.05.4-5. Mine Ooeninos. Exoloration Boreholes and Wells - Backfilled Mine Area Sun Coal Company has not constructed, developed, or utilized any under- • ground mine entries, adits, or drifts. at the Meadows No. 1 mine. - 337 - (Rev. 5/86)