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Colorado Inactive Mine Reclamation Program <br /> CLOSEOUT REPORT <br /> ACTIVE MINE BOND FORFEITURE PROJECTS <br /> Permit Information <br /> Permit Number Operator Name Mine Name <br /> C-81-039 Rockcastle Coal Grassy Gap Mine <br /> Type of Mine—Surface Commodity Mined—Coal <br /> PRE-RECLAMATION SITE CONDITIONS—On-site sediment pond leaked water through base and through a defective CMP <br /> de-watering device. Road erosion occurred as a result of improper drainage control at three locations on two separate <br /> roads. <br /> BIDDING/CONSTRUCTION INFORMATION <br /> Type of Bid Documented Quote <br /> (circle one) Formal - Bid as the Grassy Gap Project, PKA-0-1074 <br /> PO Number Contractor Name&Address Construction Dates Bond Amount <br /> 0000000004 j Start: 10/12/99 $15,932.00 <br /> R.N. Robinson & Son <br /> P.O. Box 117 <br /> Hayden, CO 81639 <br /> PO Date—9/15/99 End: 10/19/99 Project Cost <br /> ` $14,870.00 <br /> I <br /> Construction Work Description—Remove faulty CMP dewatering device from pond embankment, reset to drain. Construct <br /> new inlet for de-watering device. Seal pond base with bentonite clay. Construct four rocked rolled dips on mine haul roads. <br /> Remaining Reclamation Requirements and Estimated Cost—Some rill and gully repair is indicated on the large reclaimed <br /> area located southeast of repaired pond. Some road outslope gully repair may be necessary following spring runoff. The <br /> estimated cost is$1,100.00. <br />