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<br />III. Bonding <br />The Division has reviewed both the amount and conditions of the bond for the <br />Marr Strip Mine and the Walden tipple 1n accordance with Rule 3.02(4). The <br />Division finds that Kerr Coal Company needs to reevaluate and resubmit the <br />performance bond for the first bonding increment (if reevaluation dictates) <br />based on the following concern: <br />a. Performance bond calculations in section 780.18 and Exhibit 58a are <br />based on costs calculated in 1980/1981. Costs need to be recalculated based <br />on 1984 rental casts and prices the Division would incur in the event of <br />forfeiture. Detailed cost estimates for the worst- case based on new <br />production rates (for the mine and tipple) need to be submitted and included <br />1n the application. <br />b. The Division and Kerr Coal need to reevaluate the assumptions and <br />feasibility of using a conveyor system to backfill the pits. If the system is <br />feasible, Kerr Coal needs to submit detailed costs for this portion of the <br />reclamation. These costs must be those which would be Incurred by the state <br />if Colorado were to initiate reclamation. <br />Revision date: The timetable for revision of the bond calculations 1s June 1, <br />1984. Bond shall be resubmitted within 30 days after approval of the bond <br />reclamation estimate. <br />/mt <br />Doc. No. 9664 <br />