PERMFILE120301

• Permit No: X200510912
• IBM Index Class Name: Permit File
• Doc Date: 10/28/2005
• Doc Name: NOI Application
• From: Colowyo Coal Company
• To: DMG
• Media Type: D
• Archive: No

protect surface water from pollution. The groundwater resource will be protected
by utilizing non-toxic drilling fluids during the drilling process and sealing the drill
holes in accordance with the applicable rules and regulations when the drill hole is
no longer needed for its intended purpose. Ground water monitoring holes will not
be installed as pazt of the exploration program.
Air Pollution Air pollution is not anticipated. Vehicles and equipment will generate
minimal amounts of dust during access and construction activities. Dust may be
generated when drilling conditions allow for air injection and evacuation of the
drill hole. Dust created from air drilling methods is expected to be confined to the
drill site.
Damage to Fish and Wildlife or Their Habitat and Other Natural Resources
Damage to wildlife or their habitats is not expected. The drilling sites are small
confined areas that require little disturbance. Damage to fish will not be an issue
since none of the drainages aze known to support any fish species. Sediment
control and pollution controls mentioned above will provide protection to the
vazious vertebrate and invertebrate organisms that are present.
Cultural Resources Archaeological block surveys have been previously performed
for all areas proposed for drilling or access roads. The State Archaeologist or other
appropriate agency will be notified should any antiquities or other objects of
historic or scientific interest be encountered during the exploration program.
Hazards to Public Health and Safety All actions and procedures necessary [o
ensure public health and safety and compliance with applicable laws and
regulations will be strictly enforced. The public at large will not be exposed to the
majority of the exploration activities due to the remote location and Colowyo's
lazge private land ownership position surrounding the aze to be explored.
VII. Method of Plugging Drill Holes
As agreed upon in the discussion between the BLM and Colowyo (detailed in the letter of
August 16, 1995 from John Husband to Ed Moyer), the following plugging procedure will
be adhered to throughout this drilling program.
1. Drill holes drilled deeper than the proposed stripping limit (450-500 feet) will be
plugged by pumping cement or heavy solids bentonite mud through the drill stem
from the bottom up with the required concrete cap.
2. Drill holes shallower than proposed stripping limits (450-500 feet) may be plugged
with the ready-mix concrete method.
3. Dril] holes with no water or coal zones may be plugged by backfilling with cuttings
and the required cement cap.
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