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472 documents · Page 16 of 24

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Environmental Agreement Annual Report 1998, Ekati Diamond Mine (BHP Billiton, April 1999)
30 April 1999Report
BHP Diamonds Inc.'s 1998 Environmental Agreement Annual Report documents the Ekati Diamond Mine's transition from construction to operations, including compliance monitoring results, environmental studies, wildlife and aquatic effects monitoring, and continuous improvement initiatives. The report covers operations of the Panda pit, water licence compliance, processed kimberlite management, and various mitigation measures for environmental protection in the Northwest Territories.
Environmental Agreement Monitoring Water Quality
14th Board of Directors Meeting Package (IEMA, July 1999)
16 April 1999Meeting Minutes
Minutes from the 13th Board of Directors Meeting of the Independent Environmental Monitoring Agency (April 16-18, 1999) documenting discussions on Ekati Diamond Mine operations, including budget negotiations with BHP, kimberlite toxicity studies, tailings management concerns, fish habitat compensation planning, and regulatory processes for mine expansion applications involving Sable, Pigeon, and Beartooth kimberlite pipes.
Board Meetings Minutes Water Quality Fish Habitat Development Plans
Reclamation Cost Estimate for Closure in 1999, Ekati Diamond Mine (BHP Billiton, March 1999)
4 March 1999Report
This document provides a detailed reclamation cost estimate for the Ekati Diamond Mine assuming closure in 1999, broken down by reclamation unit (Panda Pit, Panda Waste Dump, Long Lake Containment Area, Buildings and Facilities, and Chemicals/Contaminated Soils), with a total estimated closure cost of $6,671,716 including 10 years of post-closure monitoring.
Closure & Reclamation Closure Plan Post-Closure Monitoring Development Plans
Water Licence N7L2-1616 Annual Report for 1998, Ekati Diamond Mine (BHP Billiton, March 1999)
1999Report
BHP Diamonds Inc. Annual Report for 1998 under Type A Water Licence N7L2-1616, submitted March 24 1999 to Gordon Wray, Chairman, NWT Water Board (Yellowknife), in accordance with Part B Section 5. Includes Surveillance Network Program station 1616-12 (September 15-21 1998) ICP-MS chemistry for Tot-Cadmium, Tot-Copper, Tot-Aluminum, Tot-Arsenic, Tot-Boron, pH, Orthophosphate, Biological Oxygen Demand, NO3-N + NO2-N, Ammonia-N, Nitrate; and the EKATI Diamond Mine Spill Contingency Plan covering Little Lake suspended-sediment containment, dam-to-Nema Lake topographic-low stockpiling restrictions, and intermediate-dike breach scenarios.
Water Licence Regulatory SNP
Project Description, Proposed Development of Sable, Pigeon & Beartooth Kimberlite Pipes, Ekati Diamond Mine (BHP Billiton, February 1999)
1 February 1999Regulatory Filing
BHP Diamonds Inc. proposes development of three additional kimberlite pipes (Beartooth, Pigeon, and Sable) at the Ekati Diamond Mine in the Northwest Territories, utilizing open pit mining methods and existing site infrastructure. The document details mining methods, waste rock and water management strategies, environmental impacts and mitigation measures, and reclamation plans including post-closure pit lake development for fisheries habitat replacement.
Development Plans Waste Rock Fish Habitat Wildlife
Environmental Agreement Annual Report, EKATI Diamond Mine (BHP Billiton, 1998)
1 February 1999Report
BHP Diamonds Inc.'s 1998 Environmental Annual Report documents the first year of full diamond mining operations at the Ekati Diamond Mine in the Northwest Territories, detailing environmental management practices, monitoring programs, and operational sustainability across water, air, wildlife, and land resources.
Development Plans Monitoring Water Quality
Review of Cover Design Technologies for the Reclamation of Tailings (G. Ward Wilson, University of Saskatchewan, 1999)
~1999Report
Approximate date — inferred from filename
This technical paper reviews cover design technologies for tailings reclamation across four distinct climate regimes (arid, temperate, high rainfall, and tropical monsoon) using numerical soil-atmosphere modeling. The analysis demonstrates that no single cover system design is universally applicable and that climate parameters, soil properties, and site-specific conditions must be integrated to achieve effective tailings containment and oxidation prevention.
Closure & Reclamation Waste Rock Acid Rock Drainage Kimberlite Tailings
BHP Diamonds Facts, Issue 3 (BHP Billiton, 1999)
~1999Report
Approximate date — inferred from filename
This corporate fact sheet describes the Ekati Diamond Mine in the Northwest Territories, Canada—a joint venture operated by BHP Diamonds Inc. that represents Canada's first diamond mine. The document provides comprehensive details on the mine's location, geology, infrastructure, operations, environmental management, and workforce.
Development Plans Exploration Regulatory Waste Rock Water Quality
Land Use Permit and Water Licence Inspection Reports, Ekati Diamond Mine, January 1999 to July 2001 (DIAND, 1999 to 2001)
1999–2001Report
Land Use Permit and Water Licence Inspection Reports binder January 1999 – July 2001, compiled by the Independent Environmental Monitoring Agency from INAC inspectors (Yellowknife Airport) for BHP Diamonds Inc. under Water Licence N7L2-1616. Includes photographic documentation of: snow-cleared diversion channel near the Misery road and Canyon area survey stakes, Misery Lake dewatering operations (three pumps, two CATERPILLAR generators GEA3517 / CAT POWER 225 with double-walled fuel tank, discharge flowing along natural drainage toward Lac de Gras), Coarse kimberlite rejects dumps west of the plant site within the waste-rock-dump footprint, Panda waste rock dump north of Panda pit and Koala sump, and frozen seepage from Coarse Kimberlite Rejects stockpiles.
Water Quality Regulatory Water Licence Wastewater
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
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
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
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
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
10th Board of Directors' Meeting Package (IEMA, October 1998)
30 October 1998Meeting Minutes
This document is a compilation of meeting minutes, agendas, and reports from the Independent Environmental Monitoring Agency's October 1998 board retreat and meetings, including discussions on environmental monitoring at Ekati Diamond Mine, traditional knowledge integration, tailings management, cumulative effects assessment for the proposed Diavik mine, and community consultations with Aboriginal organizations.
Board Meetings Minutes Traditional Knowledge Waste Rock
11th Board of Directors Meeting Briefing Binder (IEMA, December 1998)
30 October 1998Meeting Minutes
Minutes from the 10th Board of Directors Meeting of the Independent Environmental Monitoring Agency (October 30 - November 1, 1998) documenting discussions on Ekati mine environmental monitoring, tailings management issues, Diavik cumulative effects assessment, traditional knowledge workshop planning, and community consultations in Lutsel K'e.
Board Meetings Minutes Monitoring
"If We Wait and See, It Will Be Too Late": Critique of Approach to Environmental Management by Voisey's Bay Nickel Company (Innu Nation, October 1998)
~1998Regulatory Filing
Approximate date — inferred from filename
This is a formal submission by Innu Nation to an environmental assessment panel hearing on the proposed Voisey's Bay Nickel Mine, critiquing the adequacy of environmental impact prediction, assessment of alternatives, and the sufficiency of relying on monitoring to address serious uncertainties about mining impacts on traditional Innu lands and harvesting rights.
Traditional Knowledge Environmental Agreement Waste Rock

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472 documents · Page 16 of 24