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Client: Northgate Minerals Corporation
Location: North Central, British Columbia (300km NW of Mackenzie)
Completion Date: 2003 - 2004
Project Highlights: Waste Disposal Plan for Potentially Acid Generating Waste and Fish Habitat Compensation for the Loss of a Lake
Kemess Mine is an open pit copper-gold mine located in north central British Columbia. The mine is proposing to extend its production by exploitation of a similar deposit located 6 km north of the existing open pit. The mine plan is for a 70,000 tpd open pit development that will require storage of up to 600 million tonnes of potentially acid generating tailings and waste rock. Klohn Crippen Berger completed the feasibility study for storage, operation, and closure of these mine waste facilities that includes sub-aqueous disposal.
Klohn Crippen Berger has also been retained to complete the environmental impact assessment (EIA) necessary to obtain approval for the proposed
expansion under the provincial and federal Environmental Assessment Act regulations. Klohn Crippen Berger completed environmental and geochemical studies, compensation planning, and residual and cumulative effects assessments for the EIA submitted in October 2005. Currently, we are supporting Northgate through the technical panel review of the environmental assessment process.
Services:
- Environmental and geotechnical studies
- Habitat compensation planning
- Feasibility studies for storage, operation and mine closure
- Environmental impact assessment
- Residual/cumulative effects assessments
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