Seepage Survey Report, Reasons for Decision, Ekati Diamond Mine (Wek'èezhìı Land and Water Board, August 2019)
The Wek'èezhìi Land and Water Board issued a decision on August 23, 2019 regarding Dominion Diamond Mines' 2018 Seepage Survey Report for the Ekati mine, approving discontinuance of summer rainfall sampling at Fox WRSA while directing substantial updates to the Waste Rock and Ore Storage Management Plan including tiered action levels, clarified receiving environment definitions, and enhanced adaptive management frameworks for seepage monitoring and response.
- Date
- Document type
- Regulatory Filing
- Parties
- Wek'èezhìi Land and Water Board, Dominion Diamond Mines ULC, Environment and Climate Change Canada, Department of Environment and Natural Resources of the Government of the Northwest Territories, Independent Environmental Monitoring Agency
- Locations
- Ekati Diamond Mine, Northwest Territories, Fox Waste Rock Storage Area, Lynx WRSA, Pigeon Pit, Cujo Lake, Three Hump Lake, Bearclaw Lake, Sable pit, Waste Rock Dam Pond, Long Lake Containment Facility, Beartooth Processed Kimberlite Containment Area, King Pond Settling Facility, Little Reynolds Pond
- Parameters
- seepage monitoring, water quality, effluent quality criteria, waste rock storage, ore storage management, hardness-dependent screening criteria, total suspended solids, geochemical characterization, acid rock drainage, thermal conditions, receiving environment, adaptive management, closure and reclamation
- Pages
- 20
Original document
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