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• <br />C~ <br />i <br />• <br />Monitoring of seasonal vane should not be critical since nearly all species in the <br />surrounding plant communities are cool season. The seed mixes used were <br />predominantly cool season mixes. <br />Backfilled Mine Area Revegetation Monitoring, Activities <br />Sun Coal Company has conducted post-mine revegetation monitoring to assess <br />revegetation. In 1985, Greystone Development Consultants undertook a reconnaissance <br />field survey (Appendix 2.OSA-3). In 1988, Greystone Development Consultants again <br />assessed revegetation through a monitoring study. In July 1990, July 1991, August <br />1992, and July 1993 IMS conducted revegetation monitoring studies. In 1994, Savage <br />and Savage monitored the Sage Grass Reference Area, the Grassy Creek reclaimed <br />area, and the Eilts reclaimed area. Results of this study were presented in the 1995 <br />Phase II bond release request. In 1995, Savage and Savage monitored the Sage Grass <br />Reference Area, and the Grassy Creek reclaimed area. Results of this monitoring were <br />presented in the 1996 Phase III bond release request for the Grassy Creek reclaimed <br />area. <br />Backfilled Mine Area Reclamation Cost-Bonding Obligations <br />The following section presents an overview of the bonding history for the Meadows <br />No. 1 Mine. The first section summarizes the pre-reclamation construction cost <br />estimates used to establish 1983 bonding obligations. The second section presents <br />actual 1983-1984 reclamation costs. The third section presents the anticipated bond <br />level necessary to meet Phase II and Phase III bond performance obligations. <br />Appendix 2.05.4-4 itemizes pre-reclamation costs to establish Sun Coal's 1983 bond <br />limits for the Meadows No. 1 Mine. The costs of $760,971.00 are based upon a <br />"worst case" scenario in which the State of Colorado would use bond money <br />Mid-Term Review <br />-336- <br />Revised 4/96 <br />