Closure & Reclamation

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NWT Diamonds Project Description Report (BHP Billiton, December 1994)
1 December 1994Regulatory Filing
BHP Diamonds Inc.'s project description report for the proposed NWT Diamonds project outlines plans to develop Canada's first diamond mine in the Lac de Gras area, approximately 300 km northeast of Yellowknife. The report details the mining of five kimberlite pipes (Panda, Misery, Koala, Fox, and Leslie) through open pit and underground mining methods, with processing operations, infrastructure, environmental baseline conditions, and anticipated impacts on aquatic, terrestrial, and socioeconomic environments.
Development Plans Exploration Waste Rock Closure & Reclamation Wildlife
NWT Diamonds Project Description Report (BHP Billiton, December 1994)
1 December 1994Report
BHP Diamonds Inc. submitted a Project Description Report for the proposed NWT Diamonds project, Canada's first diamond mine located 300 km northeast of Yellowknife, describing plans to develop five kimberlite pipes through open pit and underground mining with production from mid-1995 to mid-2021, processing 9,000-18,000 tonnes per day of ore, and addressing environmental and socioeconomic impacts including aquatic habitat loss, wildlife disturbance, and employment generation.
Development Plans Exploration Waste Rock Closure & Reclamation
NWT Diamonds Project Description Report (BHP Billiton, January 1994)
~1994Regulatory Filing
Approximate date — inferred from filename
BHP Minerals Canada Ltd. submitted a comprehensive project description report for the proposed NWT Diamonds Project, a large-scale diamond mining operation located 300 km northeast of Yellowknife in the Coppermine River basin. The report details mining plans for three kimberlite pipes (Koala, Fox, and Leslie), processing methods, infrastructure development, and environmental management strategies including tailings storage in Long Lake and mitigation measures for impacts on aquatic and terrestrial ecosystems.
Development Plans Exploration Waste Rock Closure & Reclamation
Abandonment & Restoration Reference Compilation, Mine Site Reclamation Guidelines & Comparator Case Studies (DIAND, 1990 to 2006)
1990–2006Report
Abandonment & Restoration (Miscellaneous) Binder for the Ekati / Northwest Territories mining sector covering 1990-2006. Includes the January 2006 NWT Mine Site Reclamation Guidelines, "Best Environmental Management Practices for Mining in NWT" draft examples, BC Ministry of Water Land and Air Protection water-quality protection guidelines, and Island Copper Mine (BHP Minerals Canada, Vancouver) closure case study by Aspinall — covering social-aspect closure planning, worker retraining, salvage value treatment, dynamic closure scope.
Closure & Reclamation Closure Plan Regulatory Wastewater
Post-Project Analysis in Environmental Impact Assessment (UN Economic Commission for Europe, 1990)
~1990Report
Approximate date — inferred from filename
United Nations Economic Commission for Europe report on post-project analysis (PPA) in environmental impact assessment, based on a task force led by Canada. The report analyzes 11 case studies from multiple countries to document approaches for using PPA to monitor project implementation, verify impact predictions, ensure compliance with conditions, and improve future EIA processes.
Monitoring Development Plans Water Quality Wildlife Closure & Reclamation
Guidelines for Tailings Impoundment in the Northwest Territories (GNWT, February 1987)
1 February 1987Report
The Northwest Territories Water Board's February 1987 guidelines provide comprehensive technical standards and procedures for designing, constructing, operating, and abandoning tailings impoundment facilities in the unique permafrost environment of the NWT, addressing site selection, design considerations specific to cold regions, construction methods, operational control, and closure planning.
Waste Rock Regulatory Closure & Reclamation
Surface Lease Agreement, Cluff Lake Uranium Mine and Mill (Province of Saskatchewan, September 1978)
29 September 1978Permit
Surface lease agreement between the Province of Saskatchewan and Anok Ltd. for uranium mining and milling operations on 2690.4 hectares, establishing terms for mine development, environmental protection, occupational health standards, abandonment procedures, and economic benefits for northern residents including employment quotas, training programs, and local business preferences.
Regulatory Development Plans Waste Rock Closure & Reclamation Air Quality
P.H. 020 Exhibit Binder, BHP Diamond Mine Environmental Assessment Panel Hearings (Government of Saskatchewan, February 1996)
21 September 1978Permit
Surface rights lease agreement between the Saskatchewan Crown and ANOK LTD. for uranium mining and milling operations covering 2,690.4 hectares, with provisions for environmental protection, occupational health, employment of northern residents, and local business participation.
Regulatory Development Plans Waste Rock Water Quality Closure & Reclamation

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