2013-02-12_PERMIT FILE - M2013007 ‎(16)‎

• Permit No: M2013007
• IBM Index Class Name: PERMIT FILE
• Doc Date: 2/12/2013
• Doc Name: New 112c Application
• From: Rocky Mountain Aggregate and Construction, LLC
• To: DRMS
• Media Type: D
• Archive: No

Mining Area
Acreage
Topsoil (C.Y.) I Overburden (C.Y.) 'Gravel
(tons)
2,298,000
Mining Area 1
47.77
77,069
77,069
Mining Area 2
42.22
68,115
68,115
2,622,000
Mining Area 3
43.61
70,357
70,357
3,082,000
Mining Area 4
43.35
13.68
69,938
69,938
2,904,000
413,000
Mining Area 5
22,070
22,070
Total
190.63
307,550 I 307,550 1
11, 319, 000
Product sales will occur throughout the year. Crushed product will be stored within the Mining
Area 1. All final slopes will be mined to 3H:1 V or less to reduce the amount of reclamation
required after mining. In reality, the upper gravel portion of the terrace will be removed, so that
the reclaimed slopes in the mining area will actually be milder than 8H:1V in almost all cases.
The overburden will not be stockpiled but directly replaced on the pit floor as it is mined. In
addition to the overburden, crusher fines will be placed on top of the shale to provide a deeper
growth medium above the shale. The mining areas and stockpiles are shown on Map C -2B.
Uncompahgre Pit, February 2013 D -2
Table D -1 Mining Area Material Table
The material volumes described in Table D -1 are approximate but are based on limited drilling
and test pits that were dug on site. Note that the areas above are located in the mining area. The
anticipated total disturbed area for the mining area portion of the operation consists of 190.63
acres, which includes the sediment ponds. The additional disturbance comes from the access
road, topsoil stockpile, and the office / shop area. This is 8.32 acres for the access road, 3.96
acres for the topsoil stockpile and 3.69 acres for the office and shop area. Therefore, the total
disturbed area is 206.60 acres.
Topsoil will be stripped prior to mining each year. Overburden will be removed at the same time
as the topsoil but will be handled separately. Topsoil will be stockpiled or directly replaced
depending on the portion of the area being mined. Overburden will be placed on the pit floor and
not stockpiled. Details of the topsoil handling are shown in Table D -2 and also in Exhibit E -
Reclamation Plan. Gravel will be directly loaded into the crusher by a loader or will be hauled to
the crusher from the mining face in a truck.