28
to 30 minutes following cessation of pumping. Therefore, MW-16 will be completed as a water
supply well following permitting with the State Engineer’s Office and review by the Forest
Service.
In order to maintain adequate dust control on the Miller Creek Access Road, it is anticipated that
44 gpm of water will be required. In addition to the total consumption in Table 4.7-2, RER may
purchase water from the City’s Sundance Well No. 6 (permitted capacity of 400 gpm) to meet
the water demand for dust control. It is anticipated that water trucks will fill tanks at the well
head located west of town. RER continues to consult with the City of Sundance to finalize an
agreement for the purchase of industrial water.
Water Supply Facilities.
A water storage tank capable of storing 135,670 gallons will be
installed at the PUG Plant to supply water to the potable, process, and fire protection systems.
The raw water will be used for flocculent preparation, gland seal water pump, truck wash, dust
control, and auxiliaries. A minimum level (100,000 gallons) will be maintained in the water tank
to provide sufficient fire protection.
A process water tank capable of storing 30,300 gallons will be installed at the PUG Plant to
supply process water as required. The process water tank will be supplied from the PUG
thickener overflow and from raw water makeup.
A packaged potable water treatment system will be installed to produce up to 10 gpm. Potable
water will be used in all lunch rooms, toilet, and shower areas, and for emergency eye wash
facilities.
4.7.1.3 Communications
Voice and data communication from the Mine will occur via landline and wireless connections. A
reliable, state-of-the art communication system (dedicated microwave and limited cellular) will
be installed at the Mine and PUG Plant to provide employees with voice and data
communication channels. A parallel wireless communication system based on hand-held mobile
and based radios will be available for operation and maintenance personnel.
4.7.1.4 Compressed Air
Compressed air will be provided by four rotary screw compressors, two in operation, one in
stand-by, and one in the mine maintenance shop. The compressed air package will include
three receivers; one for plant air, one for dry instrument air, and one heatless desiccant air
dryer.
4.7.2 Health and Safety
RER conducted preliminary dose assessments based on existing meteorological and air quality
data to predict radiological doses to the public and workers. The results of these dose
assessments are provided in Appendix F.
