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766 documents · Page 8 of 39

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Aquatic Effects Monitoring Program (AEMP) Fish Response Plan, Version 1.0, Ekati Diamond Mine (Dominion Diamond, April 2016)
30 April 2016Report
This Aquatic Response Plan for Fish addresses low action level exceedances detected in 2012 for tissue metals (antimony, molybdenum, selenium, uranium) and EROD activity in lake trout and round whitefish at the Ekati Diamond Mine, submitted to the Wek'èezhìi Land and Water Board in compliance with Water Licence W2012L2-0001. The report describes the likely causes of exceedances (elevated metal concentrations in water and sediments downstream of the Long Lake Containment Facility and King Pond Settling Facility), ecological implications, and proposes response actions including toxicology literature review and fish growth studies to establish medium and high action levels.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Aquatic Effects Monitoring Program (AEMP) 2015 Annual Report, Summary Report, Ekati Diamond Mine (Dominion Diamond, March 2016)
31 March 2016Report
The 2015 Aquatic Effects Monitoring Program (AEMP) Summary Report documents the comprehensive annual monitoring of aquatic ecosystems at the Ekati Diamond Mine across four watersheds (Koala, King-Cujo, Carrie Pond, and Pigeon-Fay/Upper Exeter), assessing water quality, physical limnology, and biological communities to detect mine-related environmental changes. The report includes evaluation of effects, action level exceedances under the Aquatic Response Framework, and response plans for nitrogen and potassium exceedances.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Jay Project Environmental Assessment (EA1314-01) Technical Reports, Multiple Parties (Diavik Diamond Mines, July to August 2015)
2015Letter
DDMI submits a technical report to the Mackenzie Valley Environmental Impact Review Board regarding the Jay Project environmental assessment, arguing that the proposed Jay Project would adversely affect DDMI's ability to operate and close the Diavik Mine by worsening water quality in Lac de Gras and reducing caribou use of the reclaimed mine site during the critical closure period (2023-2030).
Development Plans Water Quality Closure & Reclamation
Revised Site-Specific Water Quality Objectives for Potassium, Ekati Diamond Mine (Dominion Diamond, July 2015)
2015Report
Ekati Diamond Mine Revised Site-Specific Water Quality Objectives (SSWQO) for Potassium, Version 1.0, prepared by Dominion Diamond Ekati Corporation, July 31 2015, transmitted to Violet Camsell-Blondin, Chair, Wek'èezhii Land and Water Board, Yellowknife. Includes 21-day Chronic Freshwater Toxicity Test data using Daphnia magna (Sample ID Potassium WER-SITE, Work Order 1522, March 18 – April 2015) with daily reproduction counts and initial/final water quality measurements (pH, conductivity µS, potassium concentrations), and Appendix E.5 Selected Normal Species Sensitivity Distribution (SSD) Model Residual Normality Test results (Shapiro-Francia W', D'Agostino & Pearson's K²).
Water Quality Effluent Quality Criteria Aquatics Correspondence
Status and Trends of Water Chemistry and Flow in the Coppermine and Lockhart River Basins, Final Report (Stantec, March 2015)
31 March 2015Report
This final report by Stantec evaluates the status and trends of water chemistry and flow in the Coppermine and Lockhart River watersheds in the Northwest Territories, analyzing 50+ years of monitoring data from Environment Canada and GNWT to assess spatial variability, seasonality, and temporal trends in response to mining development and other pressures.
Water Quality Monitoring Aquatic Effects Monitoring (AEMP)Regulatory
Aquatic Effects Monitoring Program (AEMP) Summary Report, Ekati Diamond Mine (Dominion Diamond, March 2015)
31 March 2015Report
The 2014 Aquatic Effects Monitoring Program (AEMP) annual report for the Ekati Diamond Mine documents comprehensive monitoring of aquatic ecosystems across multiple watersheds (Koala, King-Cujo, Pigeon-Fay, and Upper Exeter) to detect mine-related changes in water quality, physical limnology, sediment quality, and biological communities. The report includes updates to the Nitrogen Response Plan and a new Potassium Response Plan as required under Water Licence W2012L2-0001.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Response Plan for Potassium, Version 1.0, Ekati Diamond Mine (Dominion Diamond, March 2015)
2015Report
Ekati Diamond Mine Aquatic Response Plan for Potassium, Version 1.0, prepared by Dominion Diamond Ekati Corporation, March 31 2015, submitted to Violet Camsell-Blondin, Chair, Wek'èezhli Land and Water Board (WLWB), Yellowknife. Documents Total Potassium concentrations at AEMP Lake Sites 1994-2014 (Reference: ERM, Nanuq, Vulture), Action Level status for King-Cujo and Pigeon-Fay / Upper Exeter watersheds (action level not reached), potassium source attribution to Process Plant kimberlite processing (particularly underground kimberlite per Rescan 2012c), and references to ERM-Rescan Long Lake Containment Facility water quality work.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Northwest Territories 2015 Environmental Audit (Audit Steering Committee, 2015)
~2015Report
Approximate date — inferred from filename
The Northwest Territories 2015 Environmental Audit examines the effectiveness of the regulatory system under the Mackenzie Valley Resource Management Act and monitoring methods for cumulative environmental impacts, with SENES Consultants conducting the independent audit and an Audit Steering Committee overseeing the process. The audit will review regulatory effectiveness, identify information gaps related to caribou, water, and fish, and provide recommendations to improve environmental management in the NWT.
Regulatory Monitoring Water Quality Traditional Knowledge Aquatics
Environmental Agreement and Water Licence Annual Report 2013 (Dominion Diamond, April 2014)
24 April 2014Presentation
This 2013 Environmental Agreement and Water Licence Annual Report documents Dominion Diamond Ekati Corporation's compliance with regulatory requirements for the Ekati Diamond Mine, including water management, waste disposal, mining operations, environmental monitoring, and reclamation activities throughout the reporting year.
Regulatory Water Licence Environmental Agreement
WLWB Public Hearing — Lynx Project Water Licence & Land Use Permit, Ekati Diamond Mine (Multiple parties, February 2014)
6 February 2014Report
Public hearing proceedings (February 6-7, 2014) for Dominion Diamond Ekati Corporation's proposed Lynx Project water licence renewal and land use permit applications before the Wek'eezhii Land and Water Board, including presentations and interventions from IEMA, AANDC, Lutsel K'e Dene First Nation, Yellowknives Dene First Nation, and the proponent addressing water management, wildlife protection, closure planning, and regulatory compliance.
Regulatory Water Licence Water Quality
Modelling Predictions of Water Quality for Pit Lakes, Ekati Diamond Mine (BHP Billiton, November 2013)
2013Report
Ekati Diamond Mine Modelling Predictions of Water Quality for Pit Lakes (Panda, Beartooth, Koala, Koala North), prepared by Rescan Engineers & Scientists / Rescan Environmental Services Ltd. for Dominion Diamond Ekati Corporation, November 18 2013, submitted to Violet Camsell-Blondin (Chair, Wek'èezhii Land and Water Board, Yellowknife). Includes maximum ice-thickness range from nearby Contwoyto Lake (1.2-2.2 m) for natural-variability bounding, ΔSt salinity-stability parameter (30 J/m² and 10 J/m² scenarios) plots for Koala, Koala North, Beartooth, Panda pit-lake salinity vs depth, Comparison of Predicted Pit Wall Runoff and Groundwater with Observed Pit Sump Quality, and predicted Dissolved Aluminum, Arsenic, Chromium concentration projections 2006-2009.
Closure & Reclamation Water Quality Monitoring Regulatory
Environmental Agreement and Water Licence Annual Report 2012, Ekati Diamond Mine (Dominion Diamond, April 2013)
1 April 2013Report
This is the 2012 Environmental Agreement and Water Licence Annual Report for the Ekati Diamond Mine, submitted by Dominion Diamond Ekati Corporation in April 2013, detailing compliance with Type A Water Licence W2009L2-0001 and the Environmental Agreement requirements. The report provides comprehensive monitoring data on water use, waste management, kimberlite processing, wildlife and aquatic effects monitoring, closure planning, spill management, and all operational activities throughout 2012.
Monitoring Regulatory Water Quality
Aquatic Effects Monitoring Program (AEMP) Summary Report, Ekati Diamond Mine (BHP Billiton, March 2013)
28 March 2013Report
BHP Billiton's 2012 Aquatic Effects Monitoring Program report presents annual results from monitoring aquatic ecosystems at the Ekati Diamond Mine in the Northwest Territories, submitted under Water Licence W2009L2-0001. The report concludes that changes observed in water quality, plankton, and benthos communities do not appear to have influenced fish populations or health in monitored lakes, though laboratory contamination issues affected some fish tissue metal analyses.
Aquatic Effects Monitoring (AEMP)Water Quality Monitoring
Lynx Project Water Licence and Land Use Permit Public Hearing Binder, Ekati Diamond Mine (MVLWB, 2013 to 2014)
2013–2014Report
Lynx Project — Project Description and Water Licence Public Hearing binder. Includes Wek'èezhìı Land and Water Board (WLWB Wekweètì NT) hearing materials and the Dominion Diamond Project Description "Proposed Development of Lynx Kimberlite Pipe" Section 6 Environmental and Socio-Economic Risks and Mitigation (September 2013) for the Ekati Diamond Mine. Covers wildlife of greatest interest (caribou, grizzly bear, wolverine, wolf, fox, falcons), WEMP main components (wildlife incidents, caribou monitoring, grizzly bear monitoring), key Ekati issues (limit caribou disturbance, reduce permafrost-layer disturbance, reduce seepage from waste rock and processed kimberlite piles), and DFO comments on the AEMP re-evaluation. Email thread (Laura Johnston, Kim Poole, Tim Byers, Kevin O'Reilly tamarack.nt.ca) February 3 2014.
Development Plans Water Licence Regulatory Land Use Permit
Environmental Agreement and Water Licence Annual Report Summaries and Year in Review, Ekati Diamond Mine (Dominion Diamond, 2012 to 2014)
31 December 2012Report
This 2012 Environmental Agreement and Water Licence Annual Report Summary for the Ekati Diamond Mine describes mining operations, environmental monitoring programs, and compliance with regulatory requirements. The report documents activities across air and water quality monitoring, wildlife effects monitoring, fish community assessments, and reclamation efforts conducted by Dominion Diamond Ekati Corporation.
Environmental Agreement Water Licence Monitoring
Annual Interim Closure and Reclamation Plan (ICRP) Progress Report, EKATI Diamond Mine (BHP Billiton, December 2012)
21 December 2012Report
BHP Billiton's 2012 Annual Interim Closure and Reclamation Plan Progress Report documents the first year of implementation of the approved ICRP Version 2.4, detailing reclamation research activities, community engagement, progressive reclamation work completed, and proposed 2013-2015 milestones for closure planning at the Ekati Diamond Mine. The report confirms that BHP Billiton remains on schedule with reclamation research and planning activities in compliance with regulatory obligations under the Water Licence W2009L2-0001 and Environmental Agreement.
Closure & Reclamation Closure Plan Regulatory Waste Rock
Aquatic Effects Monitoring Program (AEMP) Re-evaluation, Ekati Diamond Mine (BHP Billiton, December 2012)
3 December 2012Report
BHP Billiton's 2012 Aquatic Effects Monitoring Program Re-evaluation for EKATI Diamond Mine proposes updates to monitoring design, sampling methods, and analysis techniques for the 2013-2015 period, including new sampling stations, modified variable evaluation lists, and multivariate statistical analyses, along with a proposed Pigeon project AEMP plan. The report addresses stakeholder comments and provides 33 recommendations to improve detection of potential mine effects on aquatic ecosystems.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Type A Water Licence Renewal (W2012L2-0001) Public Hearing Binder, Ekati Diamond Mine (MVLWB, February 2013)
30 November 2012Regulatory Filing
BHP Billiton's response to technical information requests from regulatory agencies and the Wek'èezhìı Land and Water Board regarding renewal of water licence W2009L2-0001 for the Ekati Diamond Mine, addressing water quality modelling, site-specific water quality objectives for chloride, nitrate and sulphate, and environmental monitoring data.
Water Licence Regulatory Water Quality
Work Plan for the Fish Component of the Aquatic Effects Monitoring Program (AEMP), Ekati Diamond Mine (BHP Billiton, May 2012)
28 May 2012Report
This is a revised work plan for the fish component of the 2012 Aquatic Effects Monitoring Program at EKATI Diamond Mine, incorporating recommendations from the Wek'èezhii Land and Water Board. The plan details sampling methodologies for lake trout, round whitefish, and slimy sculpin across nine AEMP lakes, including non-lethal sampling techniques, tissue analyses for metals and hydrocarbons, and palatability assessments using DELT analysis and traditional knowledge.
Aquatic Effects Monitoring (AEMP)Aquatics Monitoring
Environmental Agreement and Water Licence Annual Report 2011 (BHP Billiton, April 2012)
30 April 2012Report
BHP Billiton Canada Inc.'s 2012 Environmental Agreement and Water Licence Annual Report documents the EKATI Diamond Mine's 2011 operations and compliance with regulatory requirements, including water use, waste management, mining activities, and environmental monitoring programs. The report covers water and waste summaries, construction activities, reclamation work, aquatic effects monitoring, wildlife monitoring, and closure planning for the diamond mine located 300 km northeast of Yellowknife in the Northwest Territories.
Regulatory Water Licence Monitoring

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766 documents · Page 8 of 39