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...conducting innovative research for the Mining Industry! |
The Centre for Environmental Research in Minerals, Metals, and Materials |
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September, 2002.
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Island Copper's Pit Lake
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How Pit Lakes for ARD and Metal Pollution Control Perform under Varying Environmental Conditions
Greg Lawrence, Professor, Civil Engineering The University of British Columbia
Background Upon closing its Island Copper mine at Port Hardy on Vancouver Island, BHP-Billiton created an innovative lake by flooding the pit to within 10 m of its brim with sea water. Fresh water was then placed on the top 10 m, creating three separate zones in the lake, the lowest one of which is an anoxic layer to deal with injected Acid-Rock-Drainage from nearby waste dumps.
To see a pictorial presentation on Island Copper's Pit Lake, click here.
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Email: cerm3@mining.ubc.ca
Copyright © 2002 Centre for Environmental Research in Minerals, Metals, and Materials. All rights reserved.
Permission is given to reproduce all or any of the contained materials provided due credit is given to CERM3 as the source.
Revised: September 28, 2002.
