Water Quality

Chemical, physical, microbiological water properties, water-licence criteria

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Aquatic Effects Monitoring Program (AEMP) Re-evaluation and Refinement Report, Proposed Program for 2003–2007, Ekati Diamond Mine (BHP Billiton, January 2003)
1 January 2003Report
This is an Aquatic Effects Monitoring Program (AEMP) re-evaluation and refinement report for 2003-2007 prepared by BHP Billiton and Rescan Environmental Services. The document evaluates and proposes refinements to the AEMP monitoring program for the Ekati Diamond Mine, including assessment of sampling locations, monitoring frequencies, quality assurance procedures, and monitored parameters based on analysis of historical data and comparison with other established monitoring programs.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality Benthic Invertebrates
Summary Report, Environmental Agreement Annual Report 2002 & Environmental Impact Report 2003, Ekati Diamond Mine (BHP Billiton, 2003)
1 January 2003Report
BHP Billiton's Environmental Agreement Annual Report 2002 and Environmental Impact Report 2003 presents a comprehensive overview of environmental programs and monitoring at the Ekati Diamond Mine in the Northwest Territories, covering air quality, water management, wildlife effects, reclamation initiatives, and compliance with regulatory permits over the three-year period 2000–2002, with projections through 2005.
Monitoring Development Plans Environmental Agreement
Land Use Permit and Water Licence Inspection Reports, Ekati Diamond Mine (DIAND, 2003 to 2009)
2003–2009Report
Land Use Permit and Water Licence Inspection Reports binder July 2001 onwards (with note that October 2003 reports are archived in the IEMA file cabinet storage room). Includes inspection of underground mine workshops & refuelling stations, underground-mine-operations dewatering sump system, waste-management stations / material laydown / lunchrooms, January 2008 Industrial Water Use Inspection (BHP Billiton — Julie Ellison and Laura Tyler reps, Manager Environment Laura Tyler), 2003 Fox Floc Plant generator and Booster Pump #2 photos, Fox Haul Road Surveillance Network Program documentation.
Water Quality Regulatory Water Licence Waste Rock
Corporate Brochure, Ekati Diamond Mine (BHP Billiton, 2003)
~2003Report
Approximate date — inferred from filename
This corporate informational brochure describes the Ekati Diamond Mine's operations, history, geology, mining processes, infrastructure, and environmental management practices in the Northwest Territories. It covers diamond discovery, production, processing, marketing, community relations, and environmental monitoring programs across multiple pit mines and underground operations.
Development Plans Monitoring Waste Rock Water Quality Closure & Reclamation
BHP Ekati Diamond Mine Site & Regional Maps (BHP Billiton, 2003)
~2003Map
Approximate date — inferred from filename
Site map of the BHP Ekati Diamond Mine showing mining infrastructure, pit locations, water management features, and surrounding geographic features in the Northwest Territories.
Development Plans Waste Rock Kimberlite Tailings Water Quality
Panda Diversion Channel Monitoring Program Technical Report, Ekati Diamond Mine (BHP Billiton, January 2003)
1 January 2003Report
This technical report presents findings from the 2002 Panda Diversion Channel (PDC) Monitoring Program at the Ekati Diamond Mine, documenting hydrology, fish communities, habitat stability, and benthic and periphyton communities in the channel designed to compensate for habitat lost to mining operations. The 2002 monitoring year was characterized by low spring precipitation and peak flows, yet Arctic grayling continued to extensively utilize the PDC for spawning and migration with the second-highest numbers recorded since monitoring began in 1998.
Aquatics Fish Habitat Monitoring
Aquatic Effects Monitoring Program (AEMP) Appendix 1 Data Report, Ekati Diamond Mine (BHP Billiton, December 2002)
31 December 2002Report
The 2002 Aquatic Effects Monitoring Program (AEMP) Data Report presents comprehensive environmental monitoring data collected at the Ekati Diamond Mine, including meteorological, hydrological, water quality, sediment quality, and biological community data (phytoplankton, zooplankton, benthos, and fish) from multiple lakes and streams for the year 2002.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Cumulative Effects Assessment and Management (CEAM) Regional Plan of Action for the Slave Geological Province, Working Draft #4 (SGP Project Group, December 2002)
5 December 2002Report
This is Working Draft #4 of a Cumulative Effects Assessment and Management (CEAM) Regional Plan of Action for the Slave Geological Province, prepared by the SGP Project Group under review by federal and territorial governments and multi-stakeholder committees. The document outlines a framework for assessing and managing cumulative environmental effects from mining, infrastructure, and other development activities across the approximately 300,000 km² SGP region spanning NWT and Nunavut, identifying gaps, challenges, and recommended actions across nine CEAM framework components including land use planning, baseline monitoring, research, regulation, and information management.
Development Plans Monitoring Traditional Knowledge
Air Quality Monitoring Report, Ekati Diamond Mine (BHP Billiton, December 2002)
1 December 2002Report
This comprehensive air quality monitoring report for the Ekati Diamond Mine covers 1998-2001 data, analyzing total suspended particulates, snow chemistry, and emissions from mining operations to assess environmental impacts. The report concludes that air quality objectives appear to be met at mineral claim boundaries, with dust and metal deposition limited to approximately 5 km from mine activities, though gaseous emissions show broader atmospheric distribution.
Air Quality Particulate Matter Monitoring Greenhouse Gas Water Quality
Aquatic Effects Monitoring Program (AEMP) Technical Report, Ekati Diamond Mine (BHP Billiton, December 2002)
1 December 2002Report
The 2002 Aquatic Effects Monitoring Program technical report evaluates baseline and post-baseline monitoring data from the Koala and King-Cujo watersheds to assess impacts of the Ekati Diamond Mine on aquatic environments. The report finds that while mine activities caused localized changes in water quality parameters within both watersheds, no major adverse ecological effects were observed in biological communities, though some elevated nutrient levels and phytoplankton biomass changes were detected in specific receiving lakes.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Toxicity of Nitrates to Early Life Stages of Salmonid Fish, Ekati Diamond Mine (Sprague Associates, October 2002)
29 October 2002Report
This report evaluates the toxicity of nitrates to early life stages of salmonid fish, with specific application to wastewater from the Ekati Diamond Mine in the Northwest Territories. The analysis examines the Kincheloe et al. (1979) research indicating nitrate toxicity at concentrations around 10 mg/L and recommends this as a tentative water quality criterion, while noting that Moose Lake currently shows rising but still acceptable nitrate levels.
Water Quality Aquatics Fish Habitat
Aquatic Effects Monitoring Program (AEMP) Re-evaluation and Refinement Report, Proposed Program for 2003–2007, Ekati Diamond Mine (BHP Billiton, October 2002)
1 October 2002Report
This AEMP re-evaluation and refinement report for the Ekati Diamond Mine proposes modifications to the aquatic effects monitoring program for 2003-2007, including assessments of sampling locations (Grizzly, Leslie, and Little Lakes), annual and seasonal monitoring frequencies, quality assurance/quality control procedures, and evaluated parameters. The document evaluates whether water quality changes in Grizzly Lake result from fugitive dust or ANFO leaching, recommends adding Leslie Lake and reconsidering Vulture Lake as reference sites, and proposes reducing seasonal phytoplankton and zooplankton sampling from three times per year to August-only collection while maintaining other monitoring frequencies.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Bearclaw Diversion Dam, Final Design Report, Ekati Diamond Mine (EBA Engineering, October 2002)
1 October 2002Report
Final design report for Bearclaw Diversion Dam at Ekati Diamond Mine, a frozen core rockfill dam designed to divert water from Bearclaw Lake around the proposed Beartooth Pit during open-pit mining. The report presents thermal and stability analyses, construction plans, and monitoring requirements for this high-consequence structure.
Development Plans Closure & Reclamation Water Quality Monitoring Regulatory
Life History Characteristics of Freshwater Fishes Occurring in the Northwest Territories and Nunavut, with Major Emphasis on Riverine Habitat Requirements (DFO, 2002)
~2002Report
Approximate date — inferred from filename
Comprehensive literature review documenting the life history characteristics and riverine habitat requirements of 46 freshwater fish species occurring in the Northwest Territories and Nunavut, with detailed habitat preference data organized by species, developmental stage, and physical habitat features including depth, substrate, cover, and water quality.
Fish Habitat Aquatics Monitoring Water Quality
Aquatic Effects Monitoring Program (AEMP) Re-Evaluation and Refinement Report, Proposed Program for 2003–2007, Ekati Diamond Mine (BHP Billiton, October 2002)
1 October 2002Report
This is a draft report evaluating and refining the Aquatic Effects Monitoring Program (AEMP) at the Ekati Diamond Mine for the 2003-2007 period. The report recommends modifications to sampling locations (adding Leslie Lake, evaluating Vulture Lake and Little Lake), monitoring frequencies, and analytical procedures based on assessment of historical data and comparison with established monitoring guidelines.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality Benthic Invertebrates
Technical Specifications and Construction Drawings, Sable Road Stream Crossings, Ekati Diamond Mine (EBA Engineering, October 2002)
1 October 2002Report
Technical specifications and construction drawings for the installation of three stream crossings (SR-3, SR-4, SR-5) along Sable Road at Ekati Diamond Mine, including detailed requirements for culvert placement, foundation preparation, fill materials, and seepage collar installation.
Development Plans Regulatory Water Quality Monitoring
Environmental Agreement Annual Report 2001 (BHP Billiton, September 2002)
25 September 2002Report
BHP Billiton's 2001 Environmental Agreement Annual Report documents comprehensive environmental monitoring and management programs at the Ekati Diamond Mine in the Northwest Territories, including air and water quality assessments, wildlife effects monitoring, fish habitat restoration, and progressive reclamation efforts. The report demonstrates the company's commitment to minimizing environmental impacts through adaptive management, traditional knowledge integration with Aboriginal groups, and compliance with regulatory requirements including the Type A Water Licence.
Environmental Agreement Monitoring Water Quality
Sable, Pigeon and Beartooth No Net Loss Plan, Ekati Diamond Mine (BHP Billiton, September 2002)
1 September 2002Report
This No Net Loss Plan documents fish and fish habitat impacts from BHP Billiton's proposed development of three kimberlite pipes (Sable, Pigeon, and Beartooth) at the Ekati Diamond Mine in the Northwest Territories, and outlines habitat compensation strategies to comply with the federal Fisheries Act and DFO's No Net Loss policy.
Fish Habitat Development Plans Regulatory Water Quality Monitoring
Panda Diversion Channel Monitoring Program, Data Synthesis 1998–2001, Technical Report Draft, Ekati Diamond Mine (BHP Billiton, September 2002)
1 September 2002Report
This technical report synthesizes and analyzes hydrologic, benthic invertebrate, periphyton, and fisheries data collected from the Panda Diversion Channel Monitoring Program from 1998–2001, evaluating the effectiveness of the constructed compensation channel that maintains fish passage between North Panda and Kodiak Lakes at the Ekati Diamond Mine. The report presents streamflow hydrographs, rating curves, habitat assessments, and biological community analyses to support future management decisions for the channel through 2007.
Aquatics Benthic Invertebrates Aquatic Effects Monitoring (AEMP)
Incoming & Outgoing Correspondence (IEMA, August 2002 to September 2004)
2002Letter
Correspondence binder August 15 2002 – September 15 2004 for the Independent Environmental Monitoring Agency (IEMA / Agency) covering the Ekati Diamond Mine. Includes North Slave Metis Alliance (NSMA) request for intervener funding from MVLWB (Stephen Nielson), JCSFOS 2003-002 Final Report for ASTF Grant #98-1-012 "Salmon as a Bioassay Model of Effects of Total Dissolved Solids" (Alaska Science and Technology Foundation, Anchorage), NWT CEAM Blueprint Implementation Gathering May 13-14 2003 (Katimavik Rooms, Explorer Hotel Yellowknife — Participant Resource Binder), Mackenzie Valley Land and Water Board correspondence (April 2003), and ongoing BHP Billiton Diamonds Inc. correspondence to IEMA (Zabey Nevitt).
Correspondence Closure & Reclamation Métis

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