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Environmental Impact Report 2022, Final Comments, Ekati Diamond Mine (Independent Environmental Monitoring Agency, February 2024)
16 February 2024Letter
The Independent Environmental Monitoring Agency submits final review comments on Burgundy Diamond Mines' 2022 Environmental Impact Report for the Ekati Diamond Mine, rating it as satisfactory overall but recommending improvements in plain language communication, air quality standards documentation, caribou movement monitoring methodology, and dustfall monitoring protocols.
Correspondence Monitoring Air Quality Closure & Reclamation Water Quality
Wastewater and Processed Kimberlite Management Plan (WPKMP), Version 10, Agency Comments, Ekati Diamond Mine (Independent Environmental Monitoring Agency, January 2024)
31 January 2024Letter
The Independent Environmental Monitoring Agency submits detailed comments on Burgundy Diamond Mines' Wastewater and Processed Kimberlite Management Plan v10.0 for the Ekati Mine, identifying concerns regarding tailings management compliance, water monitoring gaps, pit capacity risks, and closure planning requirements, with specific recommendations for remedial actions.
Wastewater Kimberlite Tailings Water Quality
Waste Rock and Ore Storage Management Plan (WROMP), Version 12.0, Reasons for Decision, Ekati Diamond Mine (Wek'èezhìı Land and Water Board, January 2024)
31 January 2024Regulatory Filing
The Wek'èezhìı Land and Water Board approved Version 12.0 of the Waste Rock and Ore Management Plan (WROMP) for the Ekati Diamond Mine on January 31, 2024, with conditions requiring submission of Version 13.0 within 90 days of Seepage Response Framework approval and increased seep screening frequency until the framework is implemented.
Waste Rock Regulatory Water Licence
3-Year Waste Rock Storage Area Seepage Program Report, Reasons for Decision, Ekati Diamond Mine (Wek'èezhìı Land and Water Board, January 2024)
31 January 2024Regulatory Filing
The Wek'èezhìı Land and Water Board approved Arctic Canadian Diamond Company's 2022 3-Year Waste Rock Storage Area Seepage Survey Report on January 31, 2024, with requirements for future improvements and development of a Seepage Response Framework to address concerns about seep screening criteria, adaptive management responses, and EQC exceedances.
Waste Rock Regulatory Water Quality
Interim Closure and Reclamation Plan (ICRP) Annual Progress Report, Appendix H, Ekati Diamond Mine (Arctic Canadian Diamond Company, January 2024)
31 January 2024Report
Burgundy Diamond Mines' 2022-2023 Annual Closure and Reclamation Progress Report documents reclamation research, activities, and closure planning at the Ekati Diamond Mine, including Long Lake Containment Facility stabilization, vegetation monitoring, Old Camp reclamation, Pigeon Pit closure design, and updated reclamation security holdings of $313.3 million as of January 31, 2024.
Closure & Reclamation Closure Plan Water Quality Regulatory
Wildlife Effects Monitoring Program (WEMP) Annual Report 2023, Ekati Diamond Mine (Arctic Canadian Diamond Company, January 2024)
1 January 2024Report
The 2023 Wildlife Effects Monitoring Program Annual Report documents wildlife monitoring activities and effects at the Ekati Diamond Mine for the calendar year 2023, covering five Valued Ecosystem Components (caribou, grizzly bear, wolf, wolverine, raptors) and additional species including foxes and migratory birds. The report presents results on habitat loss, waste management, wildlife-vehicle interactions, wildlife mortalities, and detailed monitoring of each species group, with 206 caribou observations totaling 11,555 animals, 132 grizzly bear sightings, and implementation of 491 wildlife management actions.
Monitoring Wildlife Caribou
Wastewater and Processed Kimberlite Management Plan (WPKMP), Version 10.0, Ekati Diamond Mine (Arctic Canadian Diamond Company, December 2023)
22 December 2023Regulatory Filing
Burgundy Diamond Mines submits Version 10.0 of the Ekati Diamond Mine Wastewater and Processed Kimberlite Management Plan to the Wek'èezhìi Land and Water Board, addressing requirements of water licence W2022L2-0001 and incorporating Point Lake Development as a new mining operation. The plan describes management of minewater, sewage, and fine processed kimberlite across multiple containment facilities and operational sites, with updated monitoring and adaptive management procedures.
Wastewater Waste Rock Kimberlite Tailings
Environmental Impact Report 2022, Ekati Diamond Mine (Arctic Canadian Diamond Company, December 2023)
22 December 2023Report
The 2022 Environmental Impact Report for the Ekati Diamond Mine documents environmental activities and monitoring results from 2019 to 2021, fulfilling requirements of the 1997 Environmental Agreement between Arctic Canadian Diamond Company Ltd. (operator) and the governments of Canada and the Northwest Territories. The report assesses effects on four valued ecosystem components (air, land, water, wildlife), identifies 21 key environmental risks, and describes management practices and adaptive strategies employed to minimize the mine's environmental footprint.
Environmental Agreement Development Plans Monitoring
Waste Rock and Ore Storage Management Plan (WROMP), Version 12.0, Comments, Ekati Diamond Mine (Independent Environmental Monitoring Agency, December 2023)
20 December 2023Letter
The Independent Environmental Monitoring Agency submits detailed technical comments on Arctic Canadian Diamond Company's Waste Rock and Ore Management Plan v12.0 for the Ekati Mine, addressing concerns about Point Lake WRSA seepage monitoring, toe berm design, long-term seepage quality prediction, waste rock physical stability inspections, geochemical characterization methods, reference seep monitoring, and the identification and management of seeps of potential concern.
Waste Rock Acid Rock Drainage Water Quality
Comments on 2022 3-Year Seepage Report, Ekati Diamond Mine (Independent Environmental Monitoring Agency, December 2023)
11 December 2023Letter
The Independent Environmental Monitoring Agency provides detailed comments on Arctic Canadian Diamond Company Ltd.'s 3-year Seepage Report, addressing concerns about receiving environment definitions, adaptive management response triggers, geochemical characterization, seeps of potential concern identification, reference seep monitoring, and data interpretation issues related to the Ekati Diamond Mine operations.
Waste Rock Water Quality Effluent Quality Criteria
Comments on Interim Closure and Reclamation Plan (ICRP) Version 3.1, Ekati Diamond Mine (Independent Environmental Monitoring Agency, November 2023)
29 November 2023Letter
The Independent Environmental Monitoring Agency provides detailed comments and recommendations on Arctic Canadian Diamond Mine Ltd's Interim Closure and Reclamation Plan Version 3.1 (ICRP v3.1) for the Ekati Diamond Mine, addressing closure principles, long-term liability estimates, water quality criteria, waste rock management, pit lake reclamation, financial security, and adaptive management frameworks.
Closure & Reclamation Correspondence Post-Closure Monitoring
Waste Rock and Ore Storage Management Plan (WROMP), Version 12.0, Part 1, Ekati Diamond Mine (Arctic Canadian Diamond Company, November 2023)
9 November 2023Regulatory Filing
Burgundy Diamond Mines submits Version 12.0 of the Waste Rock and Ore Storage Management Plan (WROMP) for the Ekati Diamond Mine to the Wek'èezhìi Land and Water Board for approval under Water Licence W2020L2-0004. The submission incorporates the Point Lake Project, addresses Board decisions from previous approvals, and includes updated geochemical characterization, seepage management protocols, and adaptive management procedures for waste rock storage areas.
Waste Rock Acid Rock Drainage Geochemistry
Surveillance Network Program (SNP) Monthly Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, November 2023)
1 November 2023Report
Burgundy Diamond Mines' November 2023 Surveillance Network Program (SNP) monthly report for water licence W2022L2-0001, submitted to the Wek'èezhii Land and Water Board, documenting water volumes, flow measurements, lake elevations, minewater management, sewage treatment, waste rock disposal, and comprehensive water quality analytical results from five sampling events.
SNP Water Quality Water Licence
Annual Geotechnical Inspection Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, October 2023)
24 October 2023Report
Burgundy Diamond Mines submits the 2023 Annual Geotechnical Inspection Report for the Ekati Diamond Mine to the Wek'èezhìi Land and Water Board as required by Water Licence W2020L2-0004. Tetra Tech inspected 14 water control structures from July 14-16, 2023, finding no visible signs of cracking or distress indicating instability, with recommendations for maintenance and monitoring of specific structures including Intermediate Dike C erosion repairs and King Pond Dam water elevation management.
Regulatory Water Licence Monitoring Wastewater Closure & Reclamation
Winter Road Construction Costs and Operational Data, Information Request Response, Ekati Diamond Mine (Arctic Canadian Diamond Company, October 2023)
13 October 2023Letter
The GNWT Department of Environment and Climate Change requests information from the Wek'èezhìı Land and Water Board regarding winter road construction costs and operational data from the three Joint Venture Winter Road operators to develop a cost estimate for mine reclamation and closure security purposes.
Closure & Reclamation Regulatory Correspondence Monitoring
Surveillance Network Program (SNP) Monthly Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, October 2023)
1 October 2023Report
Burgundy Diamond Mines' October 2023 monthly Surveillance Network Program (SNP) report for water licence W2020L2-0004, submitted to the Wek'èezhii Land and Water Board, documenting water quality monitoring, flow measurements, and operational data from the Ekati Diamond Mine including field parameters, analytical results from 14 water samples, and certificates of analysis from Bureau Veritas.
SNP Water Quality Monitoring
Spills and Non-Compliances Log 2023, Appendix C, Ekati Diamond Mine (Arctic Canadian Diamond Company, September 2023)
22 September 2023Report
This document contains two main sections: (1) a comprehensive log of 2023 spills and non-compliances at the Ekati Diamond Mine, detailing 20+ incidents involving hydraulic failures, human error, and equipment failures with volumes ranging from <10 mL to 1000 L; and (2) a regulatory letter from Burgundy Diamond Mines to the Wek'èezhii Land and Water Board reporting a water quality exceedance at King Pond Settling Facility discharge to Cujo Lake in August 2023, with TSS and total copper levels exceeding maximum concentrations, accompanied by detailed laboratory analysis certificates.
Regulatory Wastewater Water Quality Waste Rock
Surveillance Network Program (SNP) Monthly Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, September 2023)
1 September 2023Report
Burgundy Diamond Mines' September 2023 Surveillance Network Program monthly report for Water Licence W2020L2-0004 documents water quality monitoring, discharge volumes, and non-compliance issues including exceedance of King Pond discharge limits and Falcon Lake withdrawal restrictions. The report includes detailed field parameters, analytical results, and bioassay data from 20 water samples collected across multiple monitoring stations at the Ekati Diamond Mine.
SNP Water Licence Water Quality
Waste Rock Storage Area Seepage Program, 3-Year Report, Part 1, Ekati Diamond Mine (Arctic Canadian Diamond Company, August 2023)
11 August 2023Report
This 2022 three-year Waste Rock and Waste Rock Storage Area Seepage Survey Report for the Ekati Diamond Mine documents monitoring of seepage quality and waste rock geochemistry as required by Water Licence W2020L2-0004. The report identifies 13 seeps of potential concern in 2022 across multiple waste rock storage areas and provides detailed interpretation of temporal trends in seepage chemistry and waste rock characteristics since project inception.
Waste Rock Acid Rock Drainage Water Quality
Interim Closure and Reclamation Plan (ICRP) Version 3.1, Part 1, Ekati Diamond Mine (Arctic Canadian Diamond Company, August 2023)
9 August 2023Regulatory Filing
Arctic Canadian Diamond Company submits Interim Closure and Reclamation Plan (ICRP) Version 3.1 for the Ekati Diamond Mine to the Wek'èezhìi Land and Water Board, updating the 2018 version to incorporate the 2022 life-of-mine plan, Board-approved closure objectives, new research findings, and stakeholder feedback, with operations scheduled to continue until 2029.
Closure & Reclamation Regulatory Water Quality Traditional Knowledge Development Plans

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1,662 documents · Page 4 of 84