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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
This 2022 3-Year Waste Rock and Waste Rock Storage Area Seepage Survey Report documents environmental monitoring results from the Ekati Diamond Mine, analyzing seepage chemistry from multiple waste rock storage areas (Fox, Misery, Lynx, Panda, and Koala WRSAs) to assess water quality, metal/metalloid concentrations, and potential environmental concerns from 2002-2022.
Laboratory analytical results from Bureau Veritas for water samples collected from waste rock storage area seepage at Ekati Diamond Mine in June 2022, including chemical analyses, toxicology bioassays, and quality assurance documentation for three seepage monitoring stations.
This 2022 3-Year Waste Rock and Waste Rock Storage Area Seepage Survey Report presents temporal trend graphs (1999–2022) for multiple chemical parameters measured in seepage from the Panda/Koala and SW waste rock storage areas at Ekati Diamond Mine, including total and dissolved concentrations of metals, nutrients, and suspended solids.
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.
The 2022 Air Quality Monitoring Program (AQMP) report for the Ekati Diamond Mine presents meteorological and air quality monitoring data collected throughout 2022, including ambient particulate matter, gaseous contaminants, dustfall, and greenhouse gas emissions. Results show that annual average temperature was -8.9°C, precipitation was 170 mm (48% below the 1994-2022 average), and no exceedances of GNWT standards for total suspended particulate or PM2.5 were recorded, with total GHG emissions estimated at 164.9 ktCO2e.
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.
Arctic Canadian Diamond Company submits the updated Wildlife Management and Monitoring Plan (WMMP) for the Ekati Diamond Mine to the Government of the Northwest Territories Environment and Natural Resources department. The WMMP replaces the 2017 Wildlife Effects Monitoring Plan and incorporates stakeholder feedback, traditional knowledge, and mitigation strategies for wildlife species including caribou, grizzly bears, wolves, wolverine, and raptors, with monitoring programs addressing habitat loss, waste management, wildlife incidents, and caribou road interactions.
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.
This document presents the 2022 Aquatic Response Framework (ARF) re-evaluation for the Ekati Diamond Mine, incorporating lessons learned since 2015 implementation and addressing regulatory directives. It proposes six recommendations including adding total iron and removing total vanadium from water quality variables, updating action levels for biological variables to require mine-related effect conclusions, and clarifying response procedures when action level exceedances are not mine-related.
This document is Appendix A-D of the Ekati Diamond Mine Interim Closure and Reclamation Plan Version 3.1 (December 2022), containing a comprehensive glossary of technical terms, acronyms, units of measure, a record of community and stakeholder engagement, and lessons learned from reclamation activities at Ekati and other northern mines.