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766 documents · Page 4 of 39

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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
Surveillance Network Program (SNP) Monthly Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, August 2023)
1 August 2023Report
Burgundy Diamond Mines' August 2023 Surveillance Network Program monthly report for water licence W2020L2-0004, documenting water quality sampling results, flow measurements, and operational data. The report identifies exceedances of total suspended solids and total copper at station 1616-43 on August 22, 2023, with notification sent to GNWT Lands Inspector.
SNP Water Quality Water Licence
Environmental Agreement and Water Licence Annual Report 2022, Regulatory Comments, Ekati Diamond Mine (Independent Environmental Monitoring Agency, July 2023)
17 July 2023Regulatory Filing
This document comprises regulatory comments on the 2022 Ekati Diamond Mine Environmental Agreement and Water Licence Annual Report from multiple government agencies, Indigenous governments, and the Independent Environmental Monitoring Agency. The reviews identify deficiencies including unreported Point Lake dewatering exceedances and effluent quality criteria violations, along with recommendations for improved reporting on air quality monitoring, wildlife surveys, dust suppression, and water management.
Regulatory Water Quality Effluent Quality Criteria Monitoring
Surveillance Network Program (SNP) Monthly Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, June 2023)
1 June 2023Report
Burgundy Diamond Mines' Surveillance Network Program (SNP) monthly report for June 2023 under Water Licence W2020L2-0004, submitted to the Wek'èezhii Land and Water Board. The report documents water quality monitoring, flow measurements, discharge volumes, and analytical results from 22 samples collected at various monitoring stations around the Ekati Diamond Mine, including an incident of elevated turbidity in King Pond that resulted in temporary suspension of discharge to Cujo Lake.
SNP Water Quality Water Licence
Aquatic Effects Monitoring Program (AEMP) 2022 Re-evaluation Report and Point Lake AEMP Design, Reasons for Decision, Ekati Diamond Mine (Wek'èezhìı Land and Water Board, May 2023)
23 May 2023Regulatory Filing
The Wek'èezhìı Land and Water Board approved the 2022 AEMP Re-evaluation Report and AEMP Design Plan Version 8.0 with required revisions, and approved the Point Lake AEMP Design Plan Version 1.0 for integration into the site-wide plan. The Board rejected Arctic's recommendations to remove zinc from water and sediment quality monitoring, required expanded non-lethal Slimy Sculpin sampling, and directed clarifications on uranium benchmarks and Response Framework procedures.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Land Use Permit Inspection Report, Point Lake Project, Ekati Diamond Mine (Government of the Northwest Territories, Environment and Climate Change, May 2023)
1 May 2023Regulatory Filing
Land Use Permit inspection report for the Ekati Diamond Mine Point Lake project conducted on March 13 and April 24, 2024, documenting compliance with permit conditions across road construction, waste rock storage, equipment management, and waste handling. The inspector found no concerns and all inspected operating conditions were rated acceptable.
Inspections Regulatory Land Use Permit Wastewater
Land Use Permit W2017D0004 Inspection, Misery Camp, Ekati Diamond Mine (Government of the Northwest Territories, Environment and Climate Change, May 2023)
1 May 2023Regulatory Filing
GNWT-ECC conducted a Land Use Permit inspection of the Ekati Diamond Mine's Misery Camp on February 28 and March 14, 2023, under permit W2017D0004. The inspection identified two minor concerns: a frozen and plugged refueling station containment sump requiring thawing before freshet, and unlabelled hydrocarbon storage containers requiring inventory and labelling.
Land Use Permit Regulatory Inspections Waste Rock Wastewater
Surveillance Network Program (SNP) Monthly Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, May 2023)
1 May 2023Report
Arctic Canadian Diamond Company's May 2023 Surveillance Network Program monthly report for Water Licence W2020L2-0004, submitted to the Wek'èezhìi Land and Water Board, documenting water sampling results, flow measurements, containment facility volumes, minewater pumping quantities, and comprehensive analytical data for multiple monitoring stations across the Ekati Diamond Mine.
SNP Water Quality Monitoring
Surveillance Network Program (SNP) Monthly Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, April 2023)
1 April 2023Report
Arctic Canadian Diamond Company's April 2023 monthly Surveillance Network Program report for Water Licence W2020L2-0004, submitted to the Wek'èezhìi Land and Water Board, documenting water volumes, lake elevations, minewater management, sewage treatment, ore and waste rock production, and detailed water quality analytical results from two sampling events.
SNP Water Quality Monitoring Regulatory
115th Board Meeting, Summary of Discussion, Ekati Diamond Mine (Independent Environmental Monitoring Agency, February 2023)
13 February 2023Meeting Minutes
IEMA Board of Directors meeting held February 13-14, 2023 in Yellowknife covering agency business, officer appointments, financial reports, policy updates, and presentations from Tlicho Government on caribou monitoring and Arctic Canadian on Ekati mine operations. Directors reviewed ongoing monitoring plans, water licence renewal preparations, and communications initiatives.
Board Meetings Minutes Caribou Closure & Reclamation
Surveillance Network Program (SNP) Monthly Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, February 2023)
1 February 2023Report
Arctic Canadian Diamond Company's February 2023 monthly Surveillance Network Program report for Water Licence W2020L2-0004, submitted to the Wek'èezhìi Land and Water Board, documenting water sampling results, flow and volume measurements, and operational monitoring data from the Ekati Diamond Mine.
SNP Water Quality Monitoring Waste Rock
Annual Water Licence Geotechnical Inspection (Government of the Northwest Territories, Environment and Climate Change, January 2023)
27 January 2023Report
Industrial water use inspection report for Ekati Diamond Mine (W2020L2-0004) conducted January 25-26, 2023 by GNWT Resource Management Officer Nahum Lee. The inspection found no major concerns across all inspected areas including Point Lake dewatering, waste facilities, fuel storage, and ammonium nitrate building, with all findings rated acceptable or not applicable.
Regulatory Water Licence Inspections Waste Rock Closure & Reclamation
Aquatic Effects Monitoring Program (AEMP) Fish Response Plan Version 3.0, Reasons for Decision, Ekati Diamond Mine (Wek'èezhìı Land and Water Board, August 2022)
25 August 2022Regulatory Filing
The Wek'èezhìi Land and Water Board approved Version 3.0 of the Fish Response Plan for Ekati Diamond Mine on August 25, 2022, establishing action levels and response protocols for selenium and mercury in fish tissue, with site-specific human consumption screening values derived from Indigenous community surveys. The Board also directed Arctic Canadian Diamond Company to assess the Operational Water Management Strategy in relation to the updated Koala Watershed Model and to evaluate a retroactive mercury exceedance in Kodiak Lake in 2018.
Aquatics Aquatic Effects Monitoring (AEMP)Regulatory Traditional Knowledge
Waste Rock Geochemical Characterization and Kinetic Testing Report, Part 2, Ekati Diamond Mine (Arctic Canadian Diamond Company, August 2022)
1 August 2022Report
This report documents humidity cell test results and geochemical assessment of metasediment from the Point Lake Project at Ekati Diamond Mine, addressing water licence requirements for kinetic testing and investigation of NAG pH discrepancies. The study evaluates acid generation potential, metal leaching, and parameters of concern in Point Lake metasediment to inform waste rock storage area seepage predictions.
Waste Rock Acid Rock Drainage Geochemistry Regulatory
Aquatic Effects Monitoring Program (AEMP) 2021 Annual Report, Reasons for Decision, Ekati Diamond Mine (Wek'èezhìı Land and Water Board, July 2022)
19 July 2022Regulatory Filing
The Wek'èezhìi Land and Water Board approved Arctic Canadian Diamond Company's 2021 Aquatic Effects Monitoring Program (AEMP) Annual Report on July 19, 2022, with specific directions for future submissions regarding pH measurements, ammonia sampling methods, sediment sampling procedures, arsenic baseline data, chlorophyll a benchmarks, and Slimy Sculpin population trends.
Aquatic Effects Monitoring (AEMP)Water Quality Aquatics Benthic Invertebrates
Comments on Environmental Agreement and Water Licence Annual Report, Ekati Diamond Mine (Independent Environmental Monitoring Agency, July 2022)
4 July 2022Letter
The Independent Environmental Monitoring Agency reviews Arctic Diamond's 2021 Environmental Agreement and Water Licence Annual Report, finding it satisfactory overall but recommending improvements to air quality monitoring data completeness, consistency in ambient standards references, and a comprehensive re-evaluation of the Air Quality Monitoring Program before implementing proposed reductions to monitoring stations.
Air Quality Correspondence Regulatory Water Quality Environmental Agreement
Water Licence Inspection Report, Ekati Diamond Mine (Government of the Northwest Territories, Environment and Climate Change, May 2022)
26 May 2022Report
Industrial water use inspection report for Ekati Diamond Mine conducted March 2 and April 20, 2022 by GNWT Department of Lands, documenting compliance with Water Licence W2020L2-0004 across multiple operational areas including fuel storage, waste management, aeration systems, and spill incidents. The inspector found no concerns and rated all inspected facilities as acceptable.
Regulatory Water Licence Inspections Water Quality
Aquatic Effects Monitoring Program (AEMP) Fish Response Plan, Version 3.0, Ekati Diamond Mine (Arctic Canadian Diamond Company, May 2022)
24 May 2022Report
Arctic Canadian Diamond Company Ltd. submits Version 3.0 of the Response Plan for Fish to the Wek'èezhìi Land and Water Board, addressing low and medium action level exceedances for selenium and mercury in fish tissues at the Ekati Diamond Mine. The plan describes community engagement on fish consumption rates, evaluation of operational water management strategies, and proposes site-specific screening values for selenium and mercury in large-bodied fish.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality

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766 documents · Page 4 of 39