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Aquatic Toxicity Associated with Diamond Ore (Kimberlite) Mining (Enviro-Test Laboratories, December 1998)
9 December 1998Report
This comprehensive toxicity study examines the aquatic effects of kimberlite ore from BHP Diamonds Inc.'s diamond mining operations in the Northwest Territories. The study includes acute and chronic toxicity testing on multiple species, toxicity identification evaluation, and 30-day fish exposure experiments assessing sublethal effects, concluding that the water licence limit of 25 mg/L kimberlite discharge is adequate for environmental protection.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Exploration Correspondence & Land Use Permitting, Ekati Diamond Mine (BHP Billiton, December 1998 to April 2008)
1998Letter
Exploration (BHP) binder for the Ekati Diamond Mine claims (2002-2008). Includes correspondence between Dave Abernethy (BHPB), Jason Brennan (DIAND), Julie Ellison (BHPB), Bruce Hanna (DFO), and Latisha Heilman (MVLWB) on Mineral Exploration Pelonquin Lake Area, winter 2008 drilling program update MV2002C0040, amendment to Land Use Permit MV2001C0026 for ground geophysics, and Boxcar Camp exploration overview (77,000 L double-walled fuel tank, 10'x28' utility trailer on skis, bulldozer/tractor-trailers/water truck/snow cat equipment, grid-control pickets). Maps locate Gazelle, Phoenix, Piranha claim blocks relative to Ekati Diamond Mine and Diavik's proposed mine (UTM coordinates 64°30'-64°45'N, 110°-110°45'W).
Exploration Correspondence Regulatory
Larry Lake and Leslie Lake Reconnaissance Surveys, Ekati Diamond Mine (BHP Billiton, December 1998)
1 December 1998Report
Rescan Environmental Services conducted reconnaissance surveys of Larry Lake and Leslie Lake on September 1, 1998 to assess potential impacts from mine effluents and operations. Larry Lake showed evidence of nutrient enrichment with elevated phytoplankton biomass, while Leslie Lake remained largely pristine except for elevated nitrate concentrations from dam construction activities.
Aquatics Water Quality Monitoring Benthic Invertebrates Wastewater
Wolf Notes No. 3, Winter 1998/99 (NWT Esker/Wolf Project, Winter 1998/99)
~1998Report
Approximate date — inferred from filename
This Winter 1998/99 newsletter reports on the NWT Esker/Wolf Project's ongoing research into wolf movements, denning habitat, and tracking technology in the central Arctic. The project describes Phase 2 preparations including transition from satellite to VHF collars, a wolf management workshop held in Lutsel K'e, GPS collar testing results, and 1998 field data on wolf movements and pup counts across 12 monitored dens.
Wildlife Monitoring Habitat Assessment Traditional Knowledge Caribou
Aquatic Effects Monitoring Program (AEMP) Technical Report Appendices, Volume I, Ekati Diamond Mine (BHP Billiton, December 1998)
1 December 1998Report
The 1998 Aquatic Effects Monitoring Program (AEMP) technical report appendices document environmental sampling locations across multiple lakes and streams near the Ekati Diamond Mine, including detailed meteorological data, stream flow measurements, and water quality monitoring parameters collected throughout the year.
Aquatic Effects Monitoring (AEMP)Aquatics Monitoring
BHP Corporate Environmental Report 1998 (BHP Billiton, 1998)
1 December 1998Report
BHP's 1998 Environmental Report details the company's environmental performance and management across its global operations in minerals, petroleum, and steel, with a focus on compliance with regulations, reduction of emissions and waste, and case studies of specific environmental initiatives such as fish protection at Ekati diamond mine and ecosystem preservation in the Timor Sea.
Air Quality Greenhouse Gas Waste Rock Monitoring
Operating Environmental Management Plan, Ekati Diamond Mine (BHP Billiton, December 1998)
1 December 1998Report
BHP's Operating Environmental Management Plan for the Ekati Diamond Mine outlines comprehensive environmental management strategies and monitoring programs for the operational phase of the mine in the Northwest Territories, covering mining operations, mineral processing, waste management, wildlife protection, air quality, and aquatic life management across an anticipated 25-year operational period.
Development Plans Air Quality Wildlife
Overview of the Hydrology and Water Quality of the Coppermine River (Coulombe-Pontbriand, Reid & Jackson, December 1998)
1 December 1998Report
This comprehensive hydrological and water quality overview of the Coppermine River basin presents mean annual discharge data, seasonal flow patterns, and flood frequency analyses from multiple gauging stations, along with water quality monitoring results comparing measured parameters to Canadian guidelines. The report evaluates the potential effects of Ekati diamond mine de-watering operations on natural river flows and regional hydrological characteristics.
Water Quality Monitoring Aquatics Regulatory
Operating Environmental Management Plan (OEMP) Supporting Documents, Volume A (BHP Billiton, December 1998)
1998Report
EKATI Diamond Mine Operating Environmental Management Plan (OEMP) Supporting Documents — Volume A (December 1998). Includes Support Document A Environmental Awareness Training Plan, Solid Waste Landfill Operating Plan (Section 2.1 Inert Solid Waste Landfill — non-hazardous waste, Section 2.2 hazardous-waste handling rules including aerosol-can puncturing/draining/incineration, chemical wastes, lead acid batteries, salvageable/recyclable materials), Tire Recycling Stockpile arrangement (used light/heavy vehicle tires in designated landfill area uncovered until full), and Enviro-Test Labs (Edmonton) Phenol-Water GC/MS Method 62 SCC/CAEAL accreditation with ETL Chemspec AIHA Lab ID 11663.
Development Plans Waste Rock Monitoring Environmental Agreement Regulatory
Environmental Baseline Assessment, Gazelle Lake, Ekati Diamond Mine (BHP Billiton, December 1998)
1 December 1998Report
An environmental baseline study of Gazelle Lake conducted in August 1998 to document aquatic resources prior to bulk sampling of a kimberlite pipe. The study assessed bathymetry, hydrology, water quality, sediment quality, and aquatic communities including fish species and habitats.
Aquatics Aquatic Effects Monitoring (AEMP)Fish Habitat
Operating Environmental Management Plan, Supporting Documents, Ekati Diamond Mine (BHP Billiton, December 1998)
1998Report
EKATI Diamond Mine Operating Environmental Management Plan (OEMP) Supporting Documents, BHP, Yellowknife NWT, December 1998. Includes Support Document A Environmental Awareness Training Plan, Support Document G Echo Bay Mines Ltd. Highway and Winter Road Drivers' Policy and Procedures Manual ("The President's Message" — Echo Bay Mines as winter-road operator), SCC/CAEAL Laboratory Accreditation Program scope-of-testing for Enviro-Test Labs (Edmonton) Phenol-Water GC/MS method, and ETL Chemspec Analytical Ltd. American Industrial Hygiene Association (AIHA) laboratory ID 11663 accreditation.
Development Plans Environmental Agreement Regulatory Waste Rock
Environmental Management Procedures Manual, Supporting Document B, Ekati Diamond Mine (BHP Billiton, December 1998)
1 December 1998Report
BHP Diamonds Inc.'s Environmental Management Procedures Manual for the Ekati Diamond Mine establishes comprehensive operating procedures to minimize environmental impacts across air quality, water, wildlife, waste, traffic, and archaeological resource management. The manual outlines reporting mechanisms, mitigation strategies, and operational guidelines for all site personnel, contractors, and visitors.
Development Plans Wildlife Air Quality
Environmental Baseline Assessment, Point Lake, Ekati Diamond Mine (BHP Billiton, December 1998)
1 December 1998Report
Environmental baseline study of Point Lake conducted in August 1998 to document aquatic resources and provide baseline environmental information for potential bulk sampling of a diamondiferous kimberlite deposit beneath the lake. The study assessed bathymetry, water quality, sediment chemistry, and aquatic communities (phytoplankton, zooplankton, benthic invertebrates, and fish), concluding that Point Lake is a very unproductive oligotrophic lake with low densities of lake trout and sculpins.
Aquatics Water Quality Aquatic Effects Monitoring (AEMP)
Panda-Kodiak Channel Research Project Progress Report (University of Alberta, December 1998)
~1998Report
Approximate date — inferred from filename
This 1998 progress report documents the inaugural year of the University of Alberta's research project assessing the effectiveness of the Panda-Kodiak Diversion Channel as fish habitat, established as compensation for loss of surface water connectivity in the Koala Watershed due to mine development. The project combines baseline surveys of the constructed channel and natural reference streams using habitat mapping, fish community assessments, benthic sampling, and hydrodynamic analyses to understand how created habitats support productive fish populations in the tundra environment.
Fish Habitat Aquatic Effects Monitoring (AEMP)Benthic Invertebrates Development Plans
Submission on the Proposed Voisey's Bay Mining Development, Environmental Management (Labrador Inuit Association, November 1998)
4 November 1998Regulatory Filing
The Labrador Inuit Association (LIA) submits a comprehensive proposal for ongoing environmental management of the proposed Voisey's Bay mining development, centered on establishing a legally binding Environmental Agreement between the four parties to the Memorandum of Understanding (Canada, Newfoundland, LIA, and Innu Nation) plus the mining company. The submission outlines the need for a multi-stakeholder Environmental Agreement Agency, a Monitoring Partnership involving VBNC, LIA, and Innu Nation, coordination with a Marine Management Plan under the Oceans Act, and a Shipping Agreement to address Inuit concerns about ice shipping, emphasizing that these arrangements are essential conditions for any environmental approval and meaningful Aboriginal participation in long-term Project management.
Environmental Agreement Traditional Knowledge Monitoring Water Quality Wildlife
Tremendous Effort Praised at Ekati Opening, Diamonds Update Final Issue (BHP Billiton, November 1998)
1 November 1998Report
BHP's official opening ceremony for Canada's first diamond mine at Ekati on October 14, 1998, celebrating successful construction completed on time and within budget, with remarks from federal and territorial officials praising safety, environmental management, and benefits to northern communities and aboriginal peoples.
Development Plans Correspondence Monitoring Environmental Agreement
Waste Rock Storage Area Seepage Survey, Ekati Diamond Mine (BHP Billiton, November 1998)
1 November 1998Report
This 1998 waste rock storage area seepage survey documents monitoring of five seepage stations (SEEP001-98 through SEEP005-98) at the Ekati Diamond Mine, conducted in accordance with Water License N7L2-1616 requirements. The report presents field measurements and laboratory analysis of seepage quality from granitic waste rock and till dumps, with key findings showing elevated ammonia and aluminum concentrations at some stations, and recommendations for continued monitoring and improved quality assurance procedures in 1999.
Waste Rock Geochemistry Water Quality
Waste Rock Storage Area Seepage Survey, Ekati Diamond Mine (BHP Billiton, November 1998)
1998Report
1998 Waste Rock Seepage Survey results for the Ekati Diamond Mine, transmitted by BHP Diamonds Inc. (November 12 1998) to Red Pedersen, Chairman, Independent Environmental Monitoring Agency, with INAC-South Mackenzie District fax to Peter McCart. Tables 3-2, 3-3, 3-4 report SEEP-002-98, SEEP-003-98, SEEP-004-98 seepage station results at the east toe of the Panda Till Dump and 700 m / 1 km downstream, with field parameters (pH, temperature) and grab/average chemistry vs. criteria for June and September 1998 sampling.
Waste Rock Water Quality Monitoring Regulatory
Toxicity of Inorganic Nitrogen Compounds to Aquatic Organisms, A Review (P. McCart, November 1998)
~1998Report
Approximate date — inferred from filename
A literature review examining the toxicity of inorganic nitrogen compounds (nitrate, nitrite, and ammonia) to aquatic organisms, with emphasis on factors influencing toxicity such as dissolved oxygen, pH, temperature, and species sensitivity, particularly in the context of mining operations using nitrogen-based explosives.
Aquatics Water Quality Fish Habitat
Tremendous Effort Praised at Ekati Opening (BHP Billiton, November 1998)
1 November 1998Report
BHP Diamonds' official opening newsletter documenting the inauguration of Canada's first diamond mine at Ekati on October 14, 1998, featuring speeches from government and mining officials, construction achievements completed safely on time and budget, and ongoing operations including a new sorting and valuation facility in Yellowknife.
Development Plans Correspondence Regulatory Traditional Knowledge

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1,662 documents · Page 49 of 84