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Communications Program and Public Involvement Update, NWT Diamonds Project (BHP Billiton, December 1995)
15 December 1995Report
BHP Diamonds Inc. and DIA MET Minerals Ltd. submit a comprehensive communications program and public involvement update for the NWT Diamonds Project covering June through December 1995, detailing extensive community consultations, EIS communications strategies, impact and benefit agreement negotiations with Aboriginal groups, and community mobilization initiatives across northern territories and communities.
Correspondence Development Plans Traditional Knowledge Tłı̨chǫ
NWT Community Mobilization Partnership Strategy (BHP Billiton, December 1995)
15 December 1995Report
BHP Diamonds Inc. presents a comprehensive community mobilization and job development partnership strategy for NWT communities affected by the proposed Ekati Diamond Mine, including the successful Wha Ti Youth and Elders Community Friendship Centre project funded with $188,888 by Youth Service Canada and a multi-phase job development strategy linking 30 businesses, 22 government/non-government organizations, and participating communities.
Development Plans Tłı̨chǫ Traditional Knowledge Correspondence
Tailings Management Plan, NWT Diamonds Project (EBA Engineering, December 1995)
15 December 1995Report
This tailings management plan for the BHP Diamonds Project describes the design and operation of a 133-million-tonne tailings disposal system using Long Lake basin in the Northwest Territories, including perimeter dams, intermediate dykes, water management strategies, and long-term reclamation to restore the site to a wetland environment.
Waste Rock Kimberlite Tailings Closure & Reclamation
West Kitikmeot/Slave Study Terms of Reference (West Kitikmeot/Slave Study Society, December 1995)
14 December 1995Report
This document establishes the terms of reference for the West Kitikmeot / Slave Study, approved December 14, 1995, which aims to collect environmental and socioeconomic information to support informed resource management decisions and assess cumulative effects of development in the region. The study is governed by a consensus-based Management Board representing aboriginal organizations, industry, environmental groups, and government, with research coordinated from a Study Office in Yellowknife.
Traditional Knowledge Yellowknives Dene Métis
Emergency Response & Contingency Plans (603g), NWT Diamonds Project (BHP Billiton, December 1995)
14 December 1995Regulatory Filing
BHP's response to the Environmental Assessment Panel's request for additional information on emergency response and contingency plans for the NWT Diamonds Project, particularly addressing spill response procedures for the Echo Bay Winter Road and mine operations, including historical spill data, equipment inventories, personnel training requirements, and detailed response protocols for various environmental media.
Development Plans Regulatory Wastewater Correspondence
Submission to the BHP Diamond Mine Environmental Assessment Panel (Management North Limited, December 1995)
11 December 1995Letter
Management North Limited submits a letter to the BHP Diamond Mine Environmental Assessment Panel supporting approval of the BHP diamond mining project, arguing that the North urgently needs non-renewable resource development to address economic hardship and employment needs. The letter contextualizes this position within the North's history of managing resource development since the Berger Inquiry and emphasizes the balance between economic benefits and manageable environmental impacts.
Development Plans Correspondence Regulatory Wildlife Traditional Knowledge
Eskers, Carnivores and Dens 1995 Baseline Study Update (BHP Billiton, December 1995)
1 December 1995Report
This 1995 baseline study documents eskers, carnivore distributions, and grizzly bear habitat use in the Lac de Gras area for the NWT Diamonds Project. Twenty-three grizzly bears were radio-collared to track movements and habitat preferences, while ground surveys identified 75 carnivore dens across major eskers and assessed food habits and ecosystem use.
Grizzly Bear Wildlife Habitat Assessment Development Plans Wolverine
Air Quality Monitoring Program Records, Ekati Diamond Mine (BHP Billiton, 1995 to 2005)
1 December 1995Regulatory Filing
This document is BHP Billiton's December 1995 response to the panel's request for additional information on monitoring programs for the NWT Diamonds Project (Ekati), detailing adaptive management criteria, thresholds, and monitoring sensitivity for water, land, air, wildlife, and socioeconomic parameters, along with establishing an independent Environmental Advisory Group. The second section (dated March 2004) presents Rescan Environmental Services' proposal to update the EKATI air dispersion model using ISC3, incorporating current meteorological data, terrain, emissions inventories, and cumulative effects assessment with the Diavik mine.
Development Plans Monitoring Water Quality Waste Rock
Baseline Study Update, Meteorology, Hydrology and Water Quality, Ekati Diamond Mine (BHP Billiton, December 1995)
1 December 1995Report
BHP Diamonds Inc.'s 1995 baseline study update on meteorology, hydrology, and water quality for the NWT Diamonds Project (Ekati) documents continued monitoring showing 40% higher precipitation than 1994, elevated surface water flows approaching 1-in-100 year event levels, and localized water quality impacts in Kodiak Lake from the Panda Lake Diversion Channel construction, while downstream water quality at Slipper Lake outlet remained unchanged.
Monitoring Water Quality Air Quality Regulatory
Eskers, Carnivores and Grizzly Bears, 1995 Baseline Study Update (BHP Billiton, December 1995)
1 December 1995Report
This 1995 baseline study documents eskers, carnivores (foxes, wolves, wolverines), and grizzly bears in the Lac de Gras area of the NWT Diamonds Project. The report presents results from extensive field surveys including 75 total carnivore dens located, 23 collared grizzly bears tracked to determine habitat use and movement patterns, and analysis of carnivore food habits and important denning habitats for wildlife management and impact assessment.
Grizzly Bear Wildlife Habitat Assessment
Meteorology, Hydrology and Water Quality 1995 Baseline Study Update (BHP Billiton, December 1995)
1 December 1995Report
This 1995 baseline study update reports meteorological, hydrological, and water quality monitoring for the NWT Diamonds Project (Ekati Mine) in the Koala/Long Lake watershed. The year was characterized by significantly higher precipitation (40% above 1994 and baseline estimates), resulting in elevated streamflows and lake levels that approached 1-in-100-year flood event magnitudes, with observed peak flows correlating well with regional historical data; water quality analysis showed localized effects in Kodiak Lake and elevated metals in the Panda Diversion Channel, though no significant changes were observed in Slipper Lake, the watershed outlet.
Monitoring Water Quality Air Quality Development Plans
Alternatives to Accelerate Pit Water Infilling, EIS Additional Information Request 16 (BHP Billiton, December 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
This document provides BHP's response to a panel request for alternatives to accelerate water infilling of mined-out open pits at the Ekati Diamond Mine, discussing options such as waste rock backfilling, tailings deposition, and surface water diversion, along with their environmental and economic trade-offs for each pit.
Development Plans Closure & Reclamation Aquatics
Caribou Assessment 1995 Baseline Study Update (BHP Billiton, December 1995)
1 December 1995Report
This 1995 baseline study documents the occurrence, movements, and distribution of caribou within the Lac de Gras area (1,900 km²) during spring, summer, and fall migration periods, with aerial survey data collected to establish pre-development baseline conditions for the proposed NWT Diamonds project. The study tracks caribou use of major travel corridors including the north shore of Lac de Gras and esker systems, identifies seasonal habitat preferences, and notes the absence of calving and rutting behavior within the study area during the monitoring period.
Caribou Wildlife Monitoring Development Plans
Baseline Information on Ground Water, EIS Additional Information Response (Section 9, 806d) (BHP Billiton, December 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
This document responds to a panel's request for additional information on baseline ground water data and monitoring plans for the proposed BHP Diamond Mine at Lac de Gras. The proponent describes low predicted groundwater inflows based on permafrost presence and low hydraulic conductivity of granite bedrock, with plans for periodic monitoring of actual pit dewatering rates rather than a comprehensive regional monitoring program.
Water Quality Monitoring Development Plans Waste Rock Regulatory
Commitments and Policies, EIS Additional Information Section 6, Item 604 (BHP Billiton, December 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
BHP describes which of its commitments and policies are binding on contractors and subcontractors, including safety, environmental, and security policies that are contractually enforceable, while employment-related policies such as wages and northern allowance apply only to BHP employees. BHP encourages but does not mandate northern and aboriginal hiring through its contractors via the Community-Based Job Development Strategy.
Development Plans Correspondence Traditional Knowledge
Fisheries and Aquatic Life Baseline Study Update, Koala Watershed, Ekati Diamond Mine (BHP Billiton, December 1995)
1 December 1995Report
BHP Diamonds Inc. submitted a 1995 baseline study update on fisheries and aquatic life in the Koala watershed for the proposed Ekati Diamond Mine project. The report presents results of sampling periphyton, benthic invertebrates, zooplankton, and fish populations from four long-term monitoring lakes (Vulture, Kodiak, Nema, and Slipper) and associated streams to establish baseline environmental conditions against which future mining impacts will be measured.
Aquatics Aquatic Effects Monitoring (AEMP)Monitoring
Monitoring Programs (EIS Additional Information, Section 15) (BHP Billiton, 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
This document is the proponent's detailed response to regulatory panel requests for information on environmental and socioeconomic monitoring programs for the NWT Diamonds Project. It outlines comprehensive monitoring plans for water quality, wildlife, air, land, permafrost, and socioeconomic parameters; describes the establishment of an independent Environmental Advisory Group; and addresses post-closure monitoring commitments and adaptive management thresholds.
Monitoring Water Quality Development Plans
Waste Management Plans, Additional Information Response to Panel Information Request 603a, Ekati Diamond Mine (BHP Billiton, December 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
This document is a detailed response to a regulatory panel's information requests regarding waste management plans for the Ekati Diamond Mine, specifically addressing tailings management, water treatment facilities, nitrogen contamination from ANFO explosives, dam failure scenarios, and waste rock drainage control. The response includes engineering designs for a Long Lake tailings facility with sequential cells, water clarification methods tested during bulk sampling, contingency plans for dam failures, and management practices to minimize ammonia losses from explosive use.
Waste Rock Wastewater Water Quality Regulatory
Fisheries and Aquatic Life Baseline Study Update, Ekati Diamond Mine (BHP Billiton, December 1995)
1 December 1995Report
This 1995 baseline fisheries and aquatic life study documents environmental conditions in the Koala watershed near the proposed Ekati Diamond Mine, establishing baseline data for long-term monitoring of four designated lakes (Vulture, Kodiak, Nema, Slipper) and associated streams. The report presents results of sampling periphyton, larval drift, benthic invertebrates, zooplankton, and fisheries data collected to assess potential mining impacts on aquatic habitat and biota.
Aquatics Aquatic Effects Monitoring (AEMP)Benthic Invertebrates
Tailings Dams Preliminary Design Report, NWT Diamonds Project (EBA Engineering, December 1995)
1 December 1995Report
EBA Engineering Consultants prepared preliminary designs for tailings dams and associated earthworks at the NWT Diamonds Project located 300 km northeast of Yellowknife, featuring four perimeter dams around Long Lake using frozen core technology to retain water and tailings, with extensive thermal and stability analyses to ensure permafrost integrity over a 25-year operational period.
Development Plans Waste Rock Closure & Reclamation Monitoring

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1,662 documents · Page 70 of 84