2010-05-07_PERMIT FILE - C2006085 ‎(2)‎

• Permit No: C2006085
• IBM Index Class Name: Permit File
• Doc Date: 5/7/2010
• Section_Exhibit Name: 2.05 Operation and Reclamation Plans
• Media Type: D
• Archive: No

fan to blow air into the mine via a shaft opening. The fan causes air to
enter and move through the intake airways where it is controlled and
directed to working areas by the above described ventilation devices.
The mine ventilation system will be designed and maintained to control
coal dust and any methane gas which may be present and to provide
sufficient fresh air to maintain a healthy working environment. Prior to
mining, Northfield will require MSHA approval of a Ventilation Plan
which provides all information regarding the use, control, and
maintenance of ventilation devices throughout the mine to control and
eliminate mine gasses, equipment exhaust, and coal dust.
Mine drainage and dewatering will be an integral part of mining
operations and mine maintenance. According to the Report on
Hydrology (Exhibit K), predicted mine inflow quantities are highly
variable and will likely be influenced by the specific location of mine
workings and rate of development. Generally, any inflows will subside
over time as flows from any hydraulic connections to groundwater
sources decline due to localized depletion and /or sealing of the mine
induced fractures by sediment deposition and expansion of rock strata
with attendant_ high clay content. Northfield will control mine inflows by
utilizing a series of sumps, submersible pumps, and water lines to
transfer water from active workings to the surface. On the surface, all
water will be treated by passing through the proposed sediment pond
prior to discharging to surface stream system.
Operation Description
Development work for the Northfield Mine will commence during the
first permit term to establish surface openings to the coal, construction
of surface facilities, and eventual production and sales of coal.
Significant activities planned for the first permit term to begin coal
production include the following:
- Establish initial road system into facility area.
- Establish necessary initial drainage and sediment control
structures:
- Recover topsoil from initial mine disturbance areas.
- Construct face -up area for slope portal area.
- Develop slope through rock to intercept coal seam, including
initial installation of slope conveyor.
- Development of portal connection to base of shafts.
- Drill ventilation shafts and install main mine fan.
- Cut and fill, compaction, and grading of mine yard and facility
areas
- Construction of facilities area structures and utilities.
- Initial development of main entries.
2.05.3 -7 Revised 12/04/09, TR -01