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RULE 2 - PERMITS
<br />Fuel Storage Area - The fuel storage areas will be located on the surface facilities pad, as shown
<br />on Map 2.05.3 -MIA, Mine Facilities Map (South End). These facilities will include a 20,000 and a
<br />10,000, and a 5,000 gallon diesel tank, a 2,000 gallon unleaded gasoline tank, a 2,500 gallon
<br />magnesium - chloride tank, three -2,000 gallon used oil tanks, and a storage area for drums or totes.
<br />All tanks will be of double - walled construction, which satisfies applicable requirements for
<br />secondary containment. Tanks will be placed on concrete pads, and metal posts will be strategically
<br />placed to protect the tanks. Adequate concrete or lined secondary containment will be provided for
<br />drums and totes. Fueling stations will be provided for diesel and gasoline, with automatic shutoffs
<br />to minimize the potential for spills during fueling, and to minimize the volume of any spill that may
<br />occur. The tank foundations and pad will contain approximately 120 cubic yards of concrete.
<br />Oil Storage Area — The oil storage area will be located on the surface pad as shown on Map 2.05.3
<br />M1A. A 2,500 gallon magnesium - chloride tank, three -2,000 gallon oil tanks, and a 20,000 gallon
<br />propane tank will set on a concrete pad. All tanks will be of double - walled construction, which
<br />satisfies applicable requirements for secondary containment, and metal posts will be strategically
<br />placed to protect the tanks. The tank foundations and pad will contain approximately 120 cubic
<br />yards of concrete.
<br />Mine Ventilation Systems - The mine ventilation systems will include an exhaust fan, which will
<br />be a 96 -inch diameter axial -vane fan that has the capacity to exhaust approximately 500,000 cubic
<br />feet per minute from the mine. The fan will be driven by a 500 hp electric motor. The mine fan
<br />will be enclosed by and connect to the steel portal structure by a steel fan shroud, with explosion
<br />doors. The fan, motor, and shroud will be supported on concrete footers and pads. The fan will be
<br />mounted on a concrete pad 15 x 30 x 2 feet, with a pedestal 2 x 8 x 5 feet, containing a total of
<br />approximately 33 cubic yards of concrete. The motor will be mounted on a concrete pedestal 5 x 4
<br />x 4 feet, containing approximately 3 cubic yards of concrete. The outlet evase will be connected to
<br />the fan via a 90- degree transition duct, with both being supported on the same concrete pad as the
<br />fan. The electrical building, housing the fan motor and control equipment will set on a 30 x 30 by 2
<br />foot pad requiring approximately 67 cubic yards of concrete.
<br />Mine Portal Heaters - A propane portal- heater system will be installed to prevent icing and
<br />improve safety on the portal entries and to heat the intake ventilation air. This installation will
<br />include a 20,000 - gallon propane tank mounted on concrete saddles, a welded LP gas -line, and
<br />multiple heater units sized to provide a total of approximately eight million BTU. The propane tank
<br />will be located on the oil storage pad, while the heater unit(s) will be located on the belt entry, as
<br />shown on Map 2.05.3 M1A, Mine Facilities Map (South End). Heat from the portal - heaters will be
<br />directed into the entries by a 5 -foot diameter steel pipe through a concrete bulkhead. In addition to
<br />the welded gas -line connecting the tank to the portal heater(s), a 2 -inch polyethylene LP line will be
<br />buried from the tank to the new bathhouse, and will include a vaporizer located some 50 feet from
<br />the tank.
<br />Compressor Building - The compressor building will be located west of the substation pad. The
<br />40 x 50 foot building will house air compressors, a dryer and controls, exhaust systems, and will
<br />include a tool storage area. The compressor building will set on an 8 -inch thick concrete slab
<br />containing approximately 50 cubic yards of concrete. An 8 -inch cased borehole, approximately 250
<br />feet deep, will deliver compressed air to the mine for underground equipment.
<br />Rock Dust Tanks - Two rockdust tanks, approximately 150 tons each, located on the surface
<br />facilities pad, as shown on Map 2.05.3 M1A, Mine Facilities Map (South End), will supply
<br />TR- 01 -10.
<br />2.05 -15 Revision 02/11
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