2001-12-11_PERMIT FILE - C1981019A

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 15 STOKER COAL FACILITY
• Media Type: D
• Archive: Yes

Construction Plan '
The construction of the stoker loading facility will take place
as follows: Refer to the Revised Map 21, Existing Structures-North for
additional detail.
I
1. The stoker loading facility will encompass approximately 6.5
acres, of which approximately 2.9 acres will be new disturbed
area for the rail siding area, 0.6 acres will be new disturbed
area for the borrov+ area, and approximately 1.0 acres will be new
disturbance for the sediment pond and topsoil stockpile, for a
total additional disturbed area of 4.5 acres.
2. All available topsoil will be removed from all affected areas in
accordance with Section 2.05 of the Colowyo Permit Aplication.
3. Approximately 45,000 cubic yards of fill material will be
excavated from the borrow area and moved to the rail siding area
as shown on the Revised Map 21. The borrow material consists of
primarily fragmented sandstone, siltstone and clay material,
similar to the material used in the construction of the adjacent
Gossard loadout.
4. After the removal of fill material from the borrow area the
disturbed slopes will be regraded to a maximum 3:1 slope. After
• regrading, approximately eight (B) inches of topsoil will be
replaced onto the borrow area disturbance. The area. around the
loading pad will have the outer slopes regraded to a maximum 3:1
slope and will not be covered with topsoil to avoid future
contamination. All remaining topsoil in excess of that needed
for the borrow area reclamation will be stockpiled in the area
shown on the Revised Map 21. Prior to seeding, all areas will be
chiseled or otherwise ripped to reduce compaction of the seed
bed. The following seed mixture will be applied to all areas
during the fall of 1983 in order to stabilize the site and to
control erosion.
Species.
Pounds/Acre
Amur Intermediate Wheatgrass (Agropyron interm=_dium) 3
Arriba Western Wheatgrass (Agropyron smithii 4
Slender Wheatgrass (Agrooyron trach caulum 4
Mountain Brome (Bromus marginatus 2
Cicer Milkvetch Astragalus cicer) 2
5. Surface drainage and sediment control will be achieved as shown
on the Revised Map 21. A ditch located to the south and east of
the disturbed area will serve to collect and direct sediment and
runoff to the sediment pond located to the northeast. The
railspur on the western edge of the pad will serve to contain any
• drainage in the pad area. The cc al loading area is designed such
that all of it's surface drainage will flow to the north into the
sediment pond. A thirty (3G) inch culvert will be constructed to