2021-08-09_PERMIT FILE - C1981019A ‎(5)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 8/9/2021
• Doc Name: Volume 1 Rule 4
• Section_Exhibit Name: 4.01 Through 4.30
• Media Type: D
• Archive: Yes

RULE 4 PERFORMANCE STANDARDS

Rule 4 Performance Standards 4-49 Revision Date: 7/20/21
Revision No.: MR-235
4.16 POSTMINING LAND USE

4.16.1 General

Implementation of the detailed reclamation plan as presented in Section 2.05.5 will result in a
landscape and vegetative cover that is equal to or better than the premining condition for rangeland
use that currently exists in the area.

4.16.2 Determining Use of Land

The premining land uses for the mine plan and adjacent areas are shown on the Land Use Map
(Map 17). The narrative describing the land use of the permit area is presented under Section
2.04.3. The proposed postmining land use will involve the restoration of the premining land use
of rangeland, as described in Section 2.05.5.

4.16.3 Prior to Release of Lands from the Permit Area in Accordance with 3.03.1 (2) (c)

The land use of rangeland will be restored in a timely manner as outlined in Section 2.05.4.
Implementation of the timetables contained therein will assure a contemporaneous reclamation
program. No alternative land uses will be implemented in the reclamation plan set forth under
Section 2.05.4.

4.17 AIR RESOURCES PROTECTION

Colowyo employs fugitive dust control measures in all phases of the mining and reclamation
activities. The control measures currently used are set forth in detail in Section 2.05.6.

The operations at Colowyo are presently regulated under numerous emission permits issued by the
Colorado Department of Health, Air Pollution Control Division. Section 2.03.10 identifies the
various permits under which Colowyo currently operates. The permits are set forth in Exhibit 8,
Air Quality Information.

4.18 PROTECTION OF FISH, WILDLIFE, AND RELATED ENVIRONMENTAL
VALUES

As described in Section 2.04.11, no threatened or endangered species have been identified within
the active mining operation. Also, no critical habitat for any species is known to exist. Golden
Eagle nesting complexes, which are located within the permit area but outside the area to be mined,
are described in Section 2.04.11.

Electric power lines and other transmission facilities in the permit area will be constructed in
accordance with the guidelines set forth in the environmental criteria for Electric Transmission
System by the United States Department of Interior (USDI) and the United States Department of
Agriculture (USDA) 1970. Distribution power lines are to be constructed by guidelines set forth
in the Rural Electrification Administration (i.e., Rural Utilities Service) 1979 Bulletin 61-10 and
will suffice for Rural Utilities Service’s current construction guidelines for raptor-safe power line