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NWT Diamonds Project Scoping Presentation, Response to Draft EIS Guidelines (BHP Billiton, March 1995)
10 March 1995Report
This NWT Diamonds Project overview document presents BHP Diamonds Inc.'s proposed diamond mine development at Lac de Gras, including site layouts for multiple phases (1997-2006), environmental assessment schedules, and detailed responses to key project issues including water quality, caribou impacts, grizzly bear management, and employment/training initiatives. The document demonstrates project feasibility with onsite power generation and existing winter road access, while addressing concerns about cumulative effects, traditional knowledge incorporation, and mitigation strategies for wildlife disturbance.
Development Plans Water Quality Wildlife
Review of Draft Guidelines for the Preparation of an Environmental Impact Statement (EIS), BHP NWT Diamonds Project (Natural Resources Canada, March 1995)
1995Report
Review of the Draft Guidelines for the Preparation of an EIS on BHP Diamonds Inc.'s NWT Diamonds Project, prepared by CANMET (Canada Centre for Mineral and Energy Technology, Natural Resources Canada / Ressources naturelles Canada, Ottawa K1A 0E4), March 31 – April 19 1995. Comments on EIS organization, Panel role in identifying and prioritizing issues, division of responsibility between administering agencies and the Proponent for permits/approvals, and probabilistic uncertainty in extrapolating 1000-year maxima from only 65 years of regional data (1930-1995).
Development Plans Regulatory Correspondence Waste Rock Water Quality
Application Package for Submittal to the Canadian Coast Guard, NWT Diamonds Project (BHP Billiton, January 1995)
5 January 1995Regulatory Filing
BHP Diamonds Inc. submits an application package to the Canadian Coast Guard under the Navigable Waters Protection Act for the proposed NWT Diamonds Project, a 25-year diamond mining operation near Lac de Gras in the Northwest Territories. The application includes detailed technical summaries of all works affecting navigable waters, including water intake systems, diversion channels, lake dewatering procedures, tailings disposal in Long Lake with perimeter dams, discharge systems, and fisheries compensation measures.
Regulatory Development Plans Water Quality Waste Rock Wastewater
Presentation Notes to the BHP Scoping Committee, BHP Diamond Mine Environmental Review Panel (Mike Beauregard, 1995)
~1995Presentation
Approximate date — inferred from filename
Mike Beauregard presents comments to the BHP Diamond Mine Environmental Review Panel addressing the scale of the proposed operation, health and safety concerns related to kimberlite mining (particularly serpentine dust and water control), and socio-environmental impacts of increased winter road traffic for mine operations.
Development Plans Air Quality Wildlife Correspondence
NWT Diamonds Project Environmental Impact Statement Summary (BHP Billiton, 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
This Environmental Impact Statement Summary describes the NWT Diamonds Project, a joint venture between BHP Diamonds Inc. and the Blackwater Group to develop Canada's first diamond mine at Lac de Gras in the Northwest Territories. The document outlines the project description, environmental setting, community consultations, mining operations including five kimberlite pipes, tailings management, and mitigation measures addressing concerns from Aboriginal communities regarding caribou migration, water quality, grizzly bears, and traditional land use.
Development Plans Traditional Knowledge Wildlife
Draft Guidelines for the Preparation of an Environmental Impact Statement, BHP NWT Diamond Mine (Federal Environmental Assessment Review Panel, January 1995)
~1995Report
Approximate date — inferred from filename
Draft guidelines issued by the Federal Environmental Assessment Review Panel for BHP Diamonds Inc. to prepare an Environmental Impact Statement for the proposed diamond mine in Lac de Gras, Northwest Territories. The document outlines comprehensive requirements for describing the project, existing environment, anticipated biophysical and socio-economic effects, mitigation measures, monitoring programs, and consultation with aboriginal peoples and communities.
Development Plans Environmental Agreement Traditional Knowledge Water Quality
Bulk Sampling, Misery Lake, Additional Information (BHP Billiton, January 1995)
1995Regulatory Filing
BHP Diamonds Inc. NWT Diamonds — Bulk Sampling Misery Lake Additional Information submission, January 17 1995, from BHP Diamonds Inc. (Yellowknife) to David Livingstone, Director Natural Resources & Environment, Department of Indian Affairs & Northern Development (DIAND, P.O. Box 1500, Yellowknife). Covers the exploration access road from west of Paul Lake to Misery Lake (following natural drainage divides, 10 km connecting road to other exploration targets), spring-freshet peak-flow accommodation at the Paul Lake stream crossing, Fish Habitat Assessment using back-pack electroshocker (1994 spring/summer survey — adult fish dominance spring with spawning grayling), and EBA Engineering particle-size analyses of soils (clay/silt/sand/gravel grading).
Exploration Regulatory Land Use Permit Correspondence
Water Technical Presentation, NWT Diamonds Project (BHP Billiton, 1995)
~1995Presentation
Approximate date — inferred from filename
A comprehensive technical presentation by BHP Diamonds Inc. and DIA MET Minerals Ltd. documenting baseline environmental conditions and predicted impacts of the NWT Diamonds Project on water resources, including hydrology, water quality, and aquatic biology in the Lac de Gras and Koala watershed areas.
Development Plans Water Quality Aquatics Wastewater
NWT Diamonds Project Description Report (BHP Billiton, December 1994)
1 December 1994Regulatory Filing
BHP Diamonds Inc.'s project description report for the proposed NWT Diamonds project outlines plans to develop Canada's first diamond mine in the Lac de Gras area, approximately 300 km northeast of Yellowknife. The report details the mining of five kimberlite pipes (Panda, Misery, Koala, Fox, and Leslie) through open pit and underground mining methods, with processing operations, infrastructure, environmental baseline conditions, and anticipated impacts on aquatic, terrestrial, and socioeconomic environments.
Development Plans Exploration Waste Rock Closure & Reclamation Wildlife
NWT Diamonds Project Description Report (BHP Billiton, December 1994)
1 December 1994Report
BHP Diamonds Inc. submitted a Project Description Report for the proposed NWT Diamonds project, Canada's first diamond mine located 300 km northeast of Yellowknife, describing plans to develop five kimberlite pipes through open pit and underground mining with production from mid-1995 to mid-2021, processing 9,000-18,000 tonnes per day of ore, and addressing environmental and socioeconomic impacts including aquatic habitat loss, wildlife disturbance, and employment generation.
Development Plans Exploration Waste Rock Closure & Reclamation
Aerosol & Gaseous Concentrations in the Air of Ventilated Dry Arctic Snow Covers, Tenth International Northern Research Basins Symposium & Workshop Proceedings (SINTEF, August to September 1994)
1994Report
Proceedings of the Tenth International Northern Research Basins Symposium and Workshop, Spitsbergen Norway, August 28 – September 3 1994. Organized by SINTEF Norwegian Hydrotechnical Laboratory and Norwegian Water Resources board. Includes H.G. Jones (INRS-Eau Ste-Foy), J.W. Pomeroy, T.D. Davies, M. Tranter, P. Marsh paper on aerosol and gaseous concentrations in ventilated dry Arctic snow covers — filter pack methodology for ions in snow vs ambient air, snow-atmosphere interface flow, enrichment factors, inter-grain ice ion transfer, and chemical composition of snow vs ambient air in sub-Arctic snowpacks.
Air Quality Monitoring Water Quality
Panda Lake Diversion and Fish Habitat Enhancement Channel Design (BHP Billiton, June 1994)
1 June 1994Report
This design report describes the engineering and environmental specifications for a 3,530-meter diversion channel connecting Panda Lake to Kodiak Lake to enable water flow and fish passage during mining operations at the Ekati Diamond Mine. The document details channel design parameters, fish habitat enhancement measures including meanders, baffles, outlet pools, and rock placement, along with erosion control and reclamation strategies.
Fish Habitat Development Plans Aquatics Waste Rock
Comments on the Draft BHP Diamond Mine EIS Guidelines (BHP Billiton, March 1994)
10 March 1994Letter
BHP Diamonds Inc. submits comments on the Draft Guidelines for the Environmental Impact Statement (EIS) of the proposed BHP Diamond Mine in the Northwest Territories, addressing proponent definition, traditional knowledge integration, land claims considerations, and cumulative effects assessment requirements.
Development Plans Traditional Knowledge Correspondence Wildlife Water Quality
Public Hearing Presentation, NWT Diamonds Project Environmental Assessment Panel (Aggie Brockman, February 1994)
23 February 1994Report
Aggie Brockman testifies at the NWT Diamonds Project environmental review panel hearing, expressing concerns about the proposed Ekati mine's impacts on northern communities, indigenous rights, and environmental protection, while questioning BHP's accountability and the adequacy of the review process.
Development Plans Traditional Knowledge Correspondence Water Quality Caribou
An Evaluation of Lake Trout Spawning Habitat Characteristics and Methods for Their Detection (Fitzsimons, 1994)
1 January 1994Report
This technical report evaluates lake trout spawning habitat characteristics in inland and Great Lakes environments, synthesizing data from verified spawning sites to develop criteria for identifying new spawning locations. The study identifies physical and hydrological factors (multi-layered cobble substrates, depth-related to lake size, slope inclination, currents) as primary determinants of spawning site selection, and recommends buried egg entrapment gear as superior to surface methods for detecting spawning habitat.
Fish Habitat Aquatics Monitoring
NWT Diamonds Project Description Report (BHP Billiton, January 1994)
~1994Regulatory Filing
Approximate date — inferred from filename
BHP Minerals Canada Ltd. submitted a comprehensive project description report for the proposed NWT Diamonds Project, a large-scale diamond mining operation located 300 km northeast of Yellowknife in the Coppermine River basin. The report details mining plans for three kimberlite pipes (Koala, Fox, and Leslie), processing methods, infrastructure development, and environmental management strategies including tailings storage in Long Lake and mitigation measures for impacts on aquatic and terrestrial ecosystems.
Development Plans Exploration Waste Rock Closure & Reclamation
News Reports & Media Clippings, BHP Diamond Mine Environmental Review (Multiple parties, November 1993 to March 1996)
1993Report
News Reports clipping binder for the Ekati / BHP Diamond Mine project (1996-2001). Includes Yellowknifer (February 28 1996, Mark Sproxton Hotham News Services) "Hiring causes concerns But businesses behind diamond project", Globe and Mail (January 9 1996) Reuters report "Broken Hill charged with harming fish — Hopes to build diamond mine on Arctic site" (charges around mud-sediment from winter drilling clouding Misery Lake), and political/business commentary on BHP Minerals + Dia Met bringing a Lac de Gras diamond mine on stream, treaty rights cautions, and Bill C-68 firearms-legislation hunting impacts.
Development Plans Correspondence Regulatory Traditional Knowledge Aquatics
Baseline Environmental Study Protocols, NWT Diamonds Project (BHP Billiton, October 1993)
1 October 1993Report
BHP Minerals Canada Ltd. submitted comprehensive baseline environmental study protocols to the Regional Environmental Review Committee in October 1993 for the NWT Diamonds Project located near Yellowknife. The document outlines protocols for biophysical sampling programs including climate, hydrology, water quality, aquatic ecology, fisheries, soils, permafrost, vegetation, wildlife, heritage resources, and socioeconomic studies to establish environmental baseline conditions in anticipation of potential full-scale mining development at the Koala and Fox kimberlite pipes.
Monitoring Development Plans Water Quality
Northwest Territories Waters Regulations, SOR/93-303 (DIAND, June 1993)
8 June 1993Report
This regulation establishes the Northwest Territories Waters Regulations, replacing the Northern Inland Waters Regulations, and sets out comprehensive licensing criteria, fees, and application procedures for water use and waste deposit across various undertaking types including industrial, mining, municipal, power, agricultural, conservation, and recreational activities.
Regulatory Water Licence Wastewater
Relocation of Major Ions in Snow along the Tundra-Taiga Ecotone (J.W. Pomeroy et al., 1993)
22 February 1993Report
This research paper examines the spatial distribution and relocation of major ions in seasonal snowcover along the tundra-taiga ecotone near Inuvik, Northwest Territories, demonstrating that ion concentrations vary significantly by landscape type due to snow redistribution, temperature-gradient metamorphism, aerosol deposition, and photochemical processes. The study shows that while sulfate scales linearly with snow accumulation, sea-salt and calcium ions are enriched through dry deposition and aerosol scavenging mechanisms, with nitrate undergoing vaporization loss, resulting in a useful landscape-stratification method for extrapolating Arctic snow chemistry measurements across larger regions.
Monitoring Air Quality Water Quality Traditional Knowledge

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940 documents · Page 46 of 47