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Aquatic Effects Monitoring Program (AEMP) 2018 Annual Report, Part 2, Data Report (Volume 2 of 4), Ekati Diamond Mine (Dominion Diamond, March 2019)
1 March 2019Report
This is Part 2 of the 2018 Aquatic Effects Monitoring Program (AEMP) data report for Ekati Diamond Mine, containing exterior and interior photographs of round whitefish and lake trout specimens collected from multiple lakes (Kodiak, Leslie, Moose, Nema, Slipper, Cujo, Nanuq, Counts, and Vulture) during August and September 2018, with documentation of fish health indicators including lesions, parasites, and fin erosion.
Aquatic Effects Monitoring (AEMP)Aquatics Monitoring
Aquatic Effects Monitoring Program (AEMP) 2018 Annual Report, Part 2, Data Report (Volume 1 of 4), Ekati Diamond Mine (Dominion Diamond, March 2019)
1 March 2019Report
This is the 2018 Aquatic Effects Monitoring Program (AEMP) Part 2 Data Report for the Ekati Diamond Mine, documenting comprehensive aquatic environmental sampling conducted from October 2017 to September 2018. The report presents detailed field methods, sampling design, and results for physical limnology, water quality, hydrology, phytoplankton, zooplankton, benthic invertebrates, and fish communities across multiple lakes and streams in five watersheds surrounding the mine.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) 2018 Annual Report, Part 1, Evaluation of Effects (Volume 1 of 2), Ekati Diamond Mine (Dominion Diamond, March 2019)
1 March 2019Report
The 2018 Aquatic Effects Monitoring Program (AEMP) report for the Ekati Diamond Mine presents a comprehensive evaluation of aquatic effects across multiple watersheds, analyzing physical limnology, water quality, and biological parameters (phytoplankton, zooplankton, benthos, and fish) from 1994–2018 with comparison to reference lakes and streams.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) Fish Response Plan Version 1.2, Phosphorus Response Plan Version 1.3, and Chloride Response Plan Version 1.2, Agency Comments, Ekati Diamond Mine (Independent Environmental Monitoring Agency, January 2019)
17 January 2019Letter
The Independent Environmental Monitoring Agency provides detailed comments on Dominion Diamond Ekati's Fish Version 1.2, Phosphorus Version 1.3, and Chloride Version 1.2 response plans, recommending improvements to water quality modeling, fish tissue monitoring protocols, action level thresholds, and consideration of organochlorine contamination and sediment sources in aquatic effects assessment.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Aquatic Effects Monitoring Program (AEMP) Response Framework, Comments on Version 3.0, Ekati Diamond Mine (Independent Environmental Monitoring Agency, October 2018)
4 October 2018Letter
The Independent Environmental Monitoring Agency submits comments on Dominion Diamond's Aquatic Response Framework v3.0, challenging the proposed fluoride benchmark of 1.5 mg/L and recommending retention of the 0.27 mg/L benchmark based on toxicity data and concerns about protection of lake trout as a valued ecosystem component. The Agency also recommends inclusion of sediment quality criteria for selenium in the ARF due to increasing selenium levels observed in fish tissues and sediments in Leslie Lake.
Aquatics Water Quality Correspondence Fish Habitat
Interim Closure and Reclamation Plan (ICRP), Version 3.0, Part 2, Open Pits, Ekati Diamond Mine (Dominion Diamond, August 2018)
1 August 2018Report
This section of the Ekati Mine Interim Closure and Reclamation Plan (ICRP) Version 3.0 from August 2018 details closure objectives, criteria, and engineering works for open pits at the Ekati Diamond Mine. It presents pit-by-pit evaluations for constructing littoral zones to enhance ecological complexity in pit lakes, water quality modelling predictions, and community engagement outcomes regarding pit lake closure and reclamation strategies.
Closure & Reclamation Closure Plan Aquatics Traditional Knowledge
Aquatic Effects Monitoring Program (AEMP) Fish Response Plan, Version 1.2, Ekati Diamond Mine (Dominion Diamond, June 2018)
25 June 2018Report
Dominion Diamond Ekati ULC submits Version 1.2 of the Response Plan for Fish to the Wek'èezhìi Land and Water Board, addressing low action level exceedances for antimony, molybdenum, selenium, uranium, and EROD activity in fish tissue detected in the 2012 Aquatic Effects Monitoring Program. The plan proposes low, medium, and high action levels with rationale for response actions to manage mine-related changes in fish tissue contaminants while maintaining protection of the aquatic receiving environment.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Aquatic Effects Monitoring Program (AEMP) Fish Response Plan, Comments, Ekati Diamond Mine (Independent Environmental Monitoring Agency, June 2016)
17 June 2016Letter
The Independent Environmental Monitoring Agency provides comments on Dominion Diamond Ekati Corporation's Fish Response Plan, supporting proposed studies while raising concerns about the exclusion of Leslie Lake data, the use of otoliths without historical baseline data, and recommending the inclusion of parasitism metrics alongside growth in determining medium action levels.
Aquatics Aquatic Effects Monitoring (AEMP)Correspondence
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, Part 1, Evaluation of Effects, Ekati Diamond Mine (Dominion Diamond, March 2016)
1 March 2016Report
The 2015 Aquatic Effects Monitoring Program (AEMP) Part 1 report evaluates aquatic environmental effects from the Ekati Diamond Mine across four watersheds (Koala, King-Cujo, Pigeon-Fay, and Upper Exeter) and reference lakes, analyzing water quality, physical limnology, plankton, benthos, and fish populations from 1994–2015 baseline and operational data.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) 2015 Annual Report, Part 2, Data Report, Ekati Diamond Mine (Dominion Diamond, March 2016)
1 March 2016Report
This is the 2015 Aquatic Effects Monitoring Program Part 2 – Data Report for the Ekati Diamond Mine, prepared by ERM Consultants Canada Ltd. for Dominion Diamond Ekati Corporation. The report presents comprehensive field methodology and detailed monitoring data collected from October 2014 to September 2015 across meteorology, hydrology, physical limnology, water quality, phytoplankton, zooplankton, benthic invertebrates, and fish communities in lakes and streams across four watersheds surrounding the mine.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) 2015 Annual Report, Part 3, Statistical Report, Ekati Diamond Mine (Dominion Diamond, March 2016)
1 March 2016Report
This is the 2015 Aquatic Effects Monitoring Program Part 3 Statistical Report for the Ekati Diamond Mine, prepared by ERM Consultants Canada Ltd. for Dominion Diamond Ekati Corporation. The report presents comprehensive statistical analyses of water quality, plankton, benthos, and fish data collected from monitored and reference lakes in the Koala, King-Cujo, Pigeon-Fay, and Upper Exeter watersheds, using linear mixed effects regression, Tobit regression, and before-after control-impact (BACI) design methodologies to detect potential mine-related effects on aquatic ecosystems.
Aquatic Effects Monitoring (AEMP)Aquatics 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
Aquatic Effects Monitoring Program (AEMP) Part 1 — Evaluation of Effects, Ekati Diamond Mine (BHP Billiton, March 2013)
1 March 2013Report
This is a comprehensive 2012 aquatic effects monitoring report for the Ekati Diamond Mine covering the Koala and King-Cujo watersheds, evaluating physical limnology, water quality, plankton, benthos, and fish populations across multiple lakes and streams using statistical and graphical analyses to assess mining-related impacts.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) Part 2 — Data Report, Ekati Diamond Mine (BHP Billiton, March 2013)
1 March 2013Report
This 2012 Aquatic Effects Monitoring Program (AEMP) Part 2 Data Report presents comprehensive field methodology and detailed monitoring data for the aquatic environment at BHP Billiton's Ekati Diamond Mine. The report documents physical limnology, water quality, plankton, benthic invertebrates, fish communities, hydrology, and meteorology data collected from October 2011 to September 2012 across multiple lakes and streams in the Koala and King-Cujo watersheds.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Panda Diversion Channel Proposed Habitat Enhancements, Ekati Diamond Mine (BHP Billiton, December 2012)
21 December 2012Report
BHP Billiton proposes final habitat enhancements to the Panda Diversion Channel to fulfill the 1996 Fish Habitat Compensation Agreement with Fisheries and Oceans Canada, including transplantation of 139 eelgrass clumps and installation of seven rocky ramps, three groyne pairs, and boulder clusters to increase habitat variability for Arctic grayling and other fish species.
Fish Habitat Aquatics Aquatic Effects Monitoring (AEMP)Development Plans
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
Panda Diversion Channel Monitoring Program Final Report, Ekati Diamond Mine (BHP Billiton, March 2012)
1 March 2012Report
This is the final year (2011, 13th year) of monitoring the Panda Diversion Channel (PDC), a compensatory fish habitat constructed in 1997 to offset stream losses from Ekati Diamond Mine development. The report assesses the PDC's effectiveness through measurements of physical habitat (flow, temperature, water quality, culverts, enhancement structures), biological productivity (benthic invertebrates, vegetation, fish populations), and Arctic grayling use, concluding that the PDC has successfully matured and serves its purpose as defined in the 1996 Fish Habitat Compensation Agreement with Fisheries and Oceans Canada.
Fish Habitat Aquatic Effects Monitoring (AEMP)Monitoring Traditional Knowledge
Environmental Impact Report (EIR) Technical Session & Related IEMA Meeting Materials, Ekati Diamond Mine (BHP Billiton, March to September 2012)
2012Meeting Agenda
Agenda — BHP Billiton Canada Inc. Environmental Impact Report (EIR) Technical Session for the EKATI Diamond Mine, Katimavik Room, Explorer Hotel, July 9-11 2012. Day 1 covers Completion of the Panda Diversion Channel (PDC) Monitoring Program (constructed 1997 as compensation for stream-habitat loss, 10-year monitoring) by François Landry (Rescan Environmental Services Ltd.) — comparison to Pigeon and Polar-Vulture Streams reference systems. Day 2 covers EIR Technical Session including the Effluent Discharge Plan to restore Long Lake Containment Facility (LLCF) Emergency Storage Capacity through winter/spring (within allowable flow rates) and EKATI Site-Specific Water Quality Objective (SSWQO) for Nitrate.
Agendas Board Meetings Fish Habitat
General Fish-out Protocol for Lakes and Impoundments in the Northwest Territories and Nunavut (Fisheries and Oceans Canada, 2011)
~2011Report
Approximate date — inferred from filename
This technical report provides a standardized general fish-out protocol for lakes and impoundments in the Northwest Territories and Nunavut, developed by Fisheries and Oceans Canada to ensure consistent and scientifically rigorous removal of fish populations when development activities require lake destruction or dewatering. The protocol includes detailed methodologies for fish community assessment, biological data collection, limnological sampling, habitat inventory, and data management to maximize utility of harvested fish for local communities while gathering ecological data.
Fish Habitat Aquatic Effects Monitoring (AEMP)Benthic Invertebrates

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220 documents · Page 2 of 11