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- Kemess South Mine reclamation and closure
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British Columbia Mine Reclamation Symposium
Kemess South Mine reclamation and closure McConnachie, Jennifer; Johns, Carolyn; Evans, Jordan; Lysay, Georgia J.
Abstract
The general reclamation strategy for the Kemess South Mine site marries long-term erosion control with successional reclamation principles. For disturbed areas, this requires proper preparation of surfaces, application of growth media, and reintroduction of native pioneer species to initiate successional processes of recovery. The focus of reclamation during mine operations has been on the inactive areas of the tailings dam, waste rock dumps, and expended construction borrow areas. The tailings are retained behind an earthfill dam. Reclamation activities were initiated at the dam in 2008 upon completion of the downstream buttresses. A series of diversion ditches to route water around and away from the dam structure were completed in 2009, and the final closure spillway is currently being constructed with completion scheduled for 2011. The two waste rock dumps contain non-acid generating (NAG) waste rock and potentially acid generating (PAG) waste rock. Resloping of the NAG dump commenced in 2009, followed by placement of overburden and ground preparation. The PAG waste dump will be relocated into the open pit by the end of mine life for subaqueous disposal Various techniques were applied to the borrow areas, including resloping, drainage control, surface preparation, bioengineering, pocket planting and introduction of native species.
Item Metadata
Title |
Kemess South Mine reclamation and closure
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Creator | |
Contributor | |
Date Issued |
2010
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Description |
The general reclamation strategy for the Kemess South Mine site marries long-term erosion control with
successional reclamation principles. For disturbed areas, this requires proper preparation of surfaces,
application of growth media, and reintroduction of native pioneer species to initiate successional
processes of recovery. The focus of reclamation during mine operations has been on the inactive areas of
the tailings dam, waste rock dumps, and expended construction borrow areas.
The tailings are retained behind an earthfill dam. Reclamation activities were initiated at the dam in 2008
upon completion of the downstream buttresses. A series of diversion ditches to route water around and
away from the dam structure were completed in 2009, and the final closure spillway is currently being
constructed with completion scheduled for 2011.
The two waste rock dumps contain non-acid generating (NAG) waste rock and potentially acid generating
(PAG) waste rock. Resloping of the NAG dump commenced in 2009, followed by placement of
overburden and ground preparation. The PAG waste dump will be relocated into the open pit by the end
of mine life for subaqueous disposal
Various techniques were applied to the borrow areas, including resloping, drainage control, surface
preparation, bioengineering, pocket planting and introduction of native species.
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Genre | |
Type | |
Language |
eng
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Date Available |
2010-12-08
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0042589
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Unknown
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Copyright Holder |
British Columbia Technical and Research Committee on Reclamation
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International