Chemical, physical, microbiological water properties, water-licence criteria
821 documents · Page 1 of 42
Burgundy Diamond Mines submits the May 2026 Surveillance Network Program Monthly Report for Water Licence W2022L2-0001, documenting water quality monitoring, flow measurements, and operational data including one water sample analysis from station 1616-46b collected on May 4, 2026, with comprehensive analytical results for major ions, nutrients, and trace metals.
The Independent Environmental Monitoring Agency provides final review comments on Burgundy Diamond Mines' 2025 Environmental Impact Report for the Ekati Diamond Mine, finding it unsatisfactory and identifying significant gaps in reporting of environmental monitoring results from 2022-2024, particularly regarding air quality, water quality, fish health, and caribou impacts.
Burgundy Diamond Mines submits the April 2026 Surveillance Network Program Monthly Report for Water Licence W2022L2-0001, including water quality monitoring data from two sampling stations, flow and volume measurements, lake level elevations, waste management records, and bioassay toxicity test results.
Burgundy Diamond Mines submits the Surveillance Network Program Monthly Report for March 2026 in compliance with Water Licence W2022L2-0001, including water quality monitoring data from four SNP stations, field parameters, analytical results for February and March 2026, flow and volume measurements, and supporting certificates of analysis from Bureau Veritas laboratory.
The Wek'èezhìı Land and Water Board approved Version 13.1 of the Waste Rock and Ore Storage Management Plan (WROMP) for the Ekati Diamond Mine on February 24, 2026, with direction for submission of Version 13.2 within 120 days and specific requirements regarding thermistor installation, seepage monitoring at Point Lake, and closure planning for the Pigeon WRSA.
Burgundy Diamond Mines submits the Surveillance Network Program (SNP) Monthly Report for February 2026 under Water Licence W2022L2-0001, detailing water quality monitoring, flow and volume measurements, and operational data for the Ekati Diamond Mine. Due to financial constraints, water chemistry results and field parameters have been deferred to the March report.
Burgundy Diamond Mines Ltd. submits the 2025 Annual Closure and Reclamation Progress Report for the Ekati Diamond Mine to meet Water Licence W2022L2-0001 requirements, addressing Board decisions on closure planning, reclamation research, water quality monitoring, and progressive reclamation activities. The report documents ongoing reclamation at Old Camp, Pigeon pit water quality sampling results, and updates on closure planning timelines affected by the company's entry into CCAA proceedings.
Burgundy Diamond Mines submits the January 2026 Surveillance Network Program Monthly Report for Water Licence W2022L2-0001, documenting dewatering activities at Sable Pit from January 8-19 with discharge to Two Rock Sedimentation Pond, including water quality sampling results and compliance data for flow, volume, and environmental parameters.
Burgundy Diamond Mines submits the December 2025 Surveillance Network Program Monthly Report for Water Licence W2022L2-0001, documenting water quality monitoring, flow and volume measurements, waste management, and operational data including one water sample collected on December 7, 2025 from station 1616-46b with comprehensive chemical analysis results.
Burgundy Diamond Mines Ltd. submits the draft 2025 Environmental Impact Report covering mine activities from 2022–2024 at the Ekati Diamond Mine in the Northwest Territories, fulfilling requirements of the 1997 Environmental Agreement. The report documents environmental monitoring across air, land, water, and wildlife valued ecosystem components, operational status of multiple pits and underground mines, and adaptive management practices for closure and reclamation.
The Independent Environmental Monitoring Agency Board of Directors met in Yellowknife on October 15-16, 2025, to discuss agency business, finances, officer appointments, document reviews including the AEMP Fish Response Plan and Plankton and Benthos Response Plan, and received updates from a GNWT inspector on recent site inspections at Ekati Diamond Mine.
The Independent Environmental Monitoring Agency submits comments on Burgundy Diamond Mines' Fish Response Plan v4.0, raising concerns about elevated mercury and selenium levels in fish tissue downstream of mine facilities and recommending additional monitoring, studies, and stakeholder workshops to address potential risks to fish populations and future Indigenous subsistence fishing.
Water Licence inspection report for Ekati Diamond Mine (Arctic Canadian Diamond Company) conducted on August 13th and September 10th, 2025, documenting compliance with Water Licence W2022L2-0001. The inspection identified one primary concern regarding sediment buildup at Seep 377 sampling location and noted several areas requiring corrective action including silt fence repairs, boneyard hydrocarbon staining, and landfill waste management issues, with most facilities rated as acceptable overall.
Burgundy Diamond Mines submits the October 2025 Surveillance Network Program (SNP) Monthly Report for Water Licence W2022L2-0001, including water quality analytical results from three sampling stations, field parameters, bioassay data, and compliance monitoring data for flow, volume, and waste management at the Ekati Diamond Mine.
Burgundy Diamond Mines submits the September 2025 Surveillance Network Program (SNP) Monthly Report for Water Licence W2022L2-0001, documenting water quality monitoring, flow measurements, waste management, and toxicological bioassay results from ten sampling stations across the Ekati Diamond Mine area.
Burgundy Diamond Mines submits the Aquatic Response Plan for Fish, Version 4.0, to address Action Level exceedances observed in 2024 for catch per unit effort and mercury and selenium concentrations in fish tissues in the Koala and King-Cujo watersheds at the Ekati Diamond Mine. The plan proposes response actions including studies on mercury bioaccumulation sources and methylmercury proportions in large-bodied fish tissues, and continued monitoring of mercury and selenium in water, sediment, and fish tissues.
The Independent Environmental Monitoring Agency reviews the 2024 Ekati Diamond Mine Environmental Agreement Annual Report and finds it satisfactory but the Summary Report unsatisfactory, identifying four key deficiencies: omission of water licence exceedances, insufficient detail on elevated mercury and selenium in fish tissues, missing acid deposition and incinerator stack testing results, and discrepancies in King Pond discharge dates.
The Wek'èezhìı Land and Water Board approved proposed revisions to the Ekati AEMP Design Plan Version 8.1 on July 9, 2025, allowing sediment quality and benthic invertebrate sampling to be conducted in 2025 rather than 2026, and removing the requirement for non-lethal Slimy Sculpin sampling in 2025. The Board also directed that Slimy Sculpin CPUE be reflected in the Aquatic Response Framework variables in the December 2025 submission.
The Independent Environmental Monitoring Agency submits comments on Burgundy Diamond Mines' Waste Rock and Ore Management Plan v13.1, recommending enhanced seepage monitoring at Point Lake using groundwater wells, clarification on trace metals methodology comparisons, specific requirements for monthly visual inspections of the Point Lake Overburden Stockpile, and updated watershed information for Sable facilities.
Burgundy Diamond Mines submits the July 2025 Surveillance Network Program Monthly Report for Water Licence W2022L2-0001, documenting water quality monitoring, flow measurements, waste management, and discharge activities at the Ekati Diamond Mine. The report includes 23 water samples collected from various monitoring stations, field parameters, analytical results for major ions and metals, and operational data on ore production, waste rock disposal, and water recycling.