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GVC also disagrees with the Division's use of a PAT blade rather than an S blade. The PAT blade pushes less material and cannot lift ae high. N. The Division uses The Means Coat Construction Cost Date to determine the cost of removing structures from the mine site. GVC does not use this cost data because Means is not applicable to most of the projects that need to be done to remove the mine site structures. Unfortunately, GVC did not submit written comments on the Division's assumptions in the earlier submittal. Instead, GVC met with the Division and voiced its concerns. The following written comments detail GVC's concerns about the Divisions assumptions. The Division states in its June 6, 1994 review letter that hourly rates cannot be used to calculate the cost to remove the structures at the mine. In fact, this is one of the few tasks in the reclamation cost calculations that the Division does not use hourly rates to calculate costa. Trailer 1 - The Division bases its cost calculation on demolition of the superstructure end the floor. Demolition of the superstructure of a trailer is not justified. The contractor will just put the tires on the trailer and haul it to the salvage yard. There is no floor/foundation under the trailer. GVC bases its cost estimate on trucking the trailer 35 miles to Grand Junction. Trailers 2, 3 & 4 - Demolition of the superstructure of these trailers is not justified. The dimensions of the trailers is 10' by 8' by 54 feet. There are two strip footers under the trailer. These footers are 3" deep by 18" wide end 54' long. This amounts to a total of 2.25 cubic yards of concrete to dispose. The sidewalk and pump house floor moat also be removed. The side walk and the pump house floor will add 7.5 cubic yards. The footers, floor and side walk will be removed as part of the regrading process at the office area end will be disposed of in the holes created by excavating the water and septic tanks. Warehouse Trailer - There is no reason to demolish this trailer. The tires will be checked and a tractor will haul it to the salvage yard. Sasser end Line Power Substations - Once again, the superstructures need not be demolished. They will be winched onto trucks and taken to the selvage yard. Carter Crusher - This unit is also a big trailer. The tires will be put on and the unit will be removed. The concrete floor and sides are 6" thick and 10' by 20'. Removal will simply be a matter of folding the sides in with a D-8 Dozer while it is reconfiguring the Bite and scooting them 30 feet to the foot of the highwell. Alternatively, the concrete may be left in place to enhance the stability of the backfill. Mc Page - 5 7/12/94