1987-12-01_PERMIT FILE - C1981017 (287)

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- Y y • •'.. .' _ October ii, 1987 Ms. Candace Thompson Hydrologist 1313 Sherman Street, Room 423 Denver, CO 80203-2273 RE: Sutey Expansion - File # C-017-81 Dear Ms. Thompson, Recently I noticed that the last two expansions of the Sutey Refuse pile did not include the area from the top of the ridge to the initial edge of the refuse pile as shown on the enclosed map. Mid-Continent Resources is hereby requesting a Technical Revision to our permit allowing us to include this area in our refuse disposal area and to extend our refuse belt through this area approximately 1150 feet. The "New Permit Area Request" as shown on the enclosed map is 5.3 acres in size. All environmental standards concerning available topsoil , hydrology and reclamation for this area was included in our recently approved Tecnical Revision #8. • Starting next spring we are proposing to extend our refuse conveyor belt 1150" up the ridge as shown. While the exact design of this belt is now being worked out, it will be very similar to the existing belt structure. When completed, refuse will discharge off the conveyor and will be pushed down the hill by dozers. The refuse will then be spread out on the flat in two foot lifts and compacted according to our approved coal waste disposal plan. As you will note, all disturbance for this conveyor will be on the. west side of the ridge. .There will be no activity on the east side. Prior to construction all topsoil will 'be. stripped and placed in an approved topsoil storage area. The conveyor and supports will be constructed in the same manner as the existing belt. Although all environmental aspects of this area were included in TR-08, the increase in bond amount was not addressed. The - following calculations indicate what the bond should be increased by to account for this new area: Total Area = 5.3 Acres Topsoil- 12,850 yd3 x $0.85/yd = $10,922.50 Final Grading- $70.00/ac x 5.3 ac = $ 371.00 Revegitation- $1395/ac x 5.3 ac = S 7,393.50 58