technical report on the nechalacho deposit, thor lake project ...

elative to uranium, the overall effect of typical Nechalacho mineralization as a rock mass is
predicted to be very low. The rare earth concentration process planned at the Flotation Plant will
concentrate the rare earths including the low levels of thorium in the rock minerals. The overall
radiation level is expected to be below Canadian Transportation of Dangerous Goods
regulations and will not require special handling as dangerous goods.
Reclamation
Reclamation and closure of all the Nechalacho Mine and Flotation Plant facilities will be
conducted in accordance with the terms and conditions of the future MVLWB Land Use Permit
and Water Licence, the “Mine Site Reclamation Policy for the Northwest Territories” and the
“Mine Site Reclamation Guidelines for the Northwest Territories and Nunavut” (INAC, 2007).
Reclamation and closure will be based on the following general objectives:
• Reclamation goals and objectives will be considered during design and planning of
construction and operations;
• Progressive reclamation will be implemented where possible;
• Upon cessation of operations, the areas will be decommissioned and rehabilitated to
allow for future land use as guided by the federal and territorial regulatory agencies; and
• Reclamation and closure will ensure that long-term physical and chemical stability is
provided.
The initial reclamation and closure plan prepared for the Nechalacho Mine and Flotation Plant
site will be a living document that will be updated throughout the Project’s life to reflect changing
conditions and the input of the applicable federal and territorial regulatory agencies.
The primary reclamation activities will involve the removal of surface facilities and infrastructure,
the re-contouring and scarification of the footprint area, the application of stockpiled organics,
and re-vegetation to the extent possible.
Specifically for the tailings management facility, the main objective of the closure and
reclamation initiatives will be to transform the tailings management facility area to its pre-mining
usage and capability to the greatest degree possible. Closure and reclamation strategies will
focus on stabilizing and covering the exposed tailing surfaces and re-establishing surface flow
patterns, while ensuring that acceptable downstream water quality is maintained. Specific
reclamation activities pertaining to the tailings management facility area will include the
following:
Technical Report 43-101 – March 13, 2011 Page 18-100
Prepared by Avalon Rare Metals Inc.