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472 documents · Page 12 of 24

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Processed Kimberlite Tailings Reclamation Research Program, 2001 Annual Report, Ekati Diamond Mine (BHP Billiton, December 2001)
1 December 2001Report
This annual report documents a multi-year reclamation research program conducted by BHP Billiton Diamonds Inc. at the Ekati Diamond Mine to evaluate methods for revegetating processed kimberlite tailings in Cell B of the Long Lake Containment Facility. The 2001 report presents second-year results from 2000 studies (soil amendments, revegetation strategies, and grass species trials) and first-year results from 2001 studies (lake sediment soil amendments and grazing effects), demonstrating that plant establishment is feasible with appropriate soil amendments, particularly peat or lake sediment combined with fertilizer and grass seed.
Closure & Reclamation Revegetation Kimberlite Tailings Geochemistry
Kinetic Test Progress Report, Sable, Pigeon & Beartooth Pipes, Ekati Diamond Mine (SRK Consulting, October 2001)
16 October 2001Report
Kinetic geochemical testing progress report on waste rock and kimberlite samples from Sable, Pigeon and Beartooth Pipes at Ekati Diamond Mine, presenting humidity cell and carbonic acid leaching results to evaluate acid-generation potential and metal leaching behavior over approximately 40 test cycles.
Geochemistry Waste Rock Acid Rock Drainage
Proceedings of the Northern Latitudes Mining Reclamation Workshop, Whitehorse, Yukon (DIAND, October 2001)
3 October 2001Report
Proceedings of the first bi-annual Northern Latitudes Mining Reclamation Workshop held in Whitehorse, Yukon in October 2001, comprising 13 peer-reviewed papers and 24 presentation abstracts addressing mine reclamation, closure, and abandoned mine lands in northern and alpine climates. Topics include revegetation techniques, reclamation methods, residual contaminants, and cost assessment.
Closure & Reclamation Revegetation Waste Rock Geochemistry Monitoring
Interim Abandonment and Restoration Plan, Diavik Diamonds Project (Diavik Diamond Mines, October 2001)
2001Report
2001 Interim Abandonment and Restoration Plan for the Diavik Diamond Mines Inc. Diavik Diamonds Project (NWT), EMS File 6.6.2, NKSL 4200-41EG-1019 Rev. 0, October 2001, transmitted by DDMI to Melody McLeod, Chairperson, Mackenzie Valley Land and Water Board, Yellowknife. Covers country-rock fill placement over sandy silt sediment (starting 2 m layers), fish habitat replacement under the No Net Loss Plan for small lakes lost during construction, deep-water vs shallow-water habitat proportions, and DDMI's Environmental Management System (Version 1) Continual Improvement, Conservation, and Communications policies.
Closure & Reclamation Closure Plan Regulatory
First Bi-Annual Northern Latitudes Mining Reclamation Workshop, Program & Abstracts (Alaska-Yukon Mining Working Group, September to October 2001)
30 September 2001Report
Conference proceedings from the First Bi-Annual Northern Latitudes Mining Reclamation Workshop held in Whitehorse, Yukon, September 30 - October 3, 2001, featuring technical sessions, posters, and field trips on mine reclamation, closure, and remediation in northern climates, with emphasis on acid rock drainage, vegetation restoration, water quality prediction, and abandoned mine site rehabilitation.
Closure & Reclamation Revegetation Acid Rock Drainage
Desperation and Carrie Ponds No Net Loss Plan, Misery Pit, Ekati Diamond Mine (BHP Billiton, August 2001)
31 August 2001Report
BHP Diamonds Inc.'s No Net Loss Plan quantifies fish habitat losses from Misery Pit development at Desperation and Carrie Ponds (0.587 weighted habitat units) and proposes habitat compensation through enhancement projects at other lakes and streams to achieve net gain in productive fish habitat capacity in compliance with federal Fisheries Act and DFO policy.
Fish Habitat Aquatics Regulatory Waste Rock
Mining Industry Questionnaire for Water Licence Application, Beartooth, Pigeon & Sable Pits, Ekati Diamond Mine (BHP Billiton, August 2001)
30 August 2001Regulatory Filing
BHP Diamonds Inc. submitted a Mining Industry Questionnaire for Water Licence Applications to the Mackenzie Valley Land and Water Board in August 2001, providing supplemental information in support of their application for water licensing of the proposed Beartooth, Pigeon, and Sable kimberlite pipe developments at the Ekati Diamond Mine. The questionnaire details mine operations, geology, water usage, dewatering plans, tailings management, and environmental monitoring for the three new pit developments, which would extend the mine life by approximately three years.
Regulatory Water Licence Development Plans
Aspects of Prevention, Mitigation and Reclamation, Metal Leaching and Acid Rock Drainage Course (Ron Nicholson, August 2001)
22 August 2001Presentation
A lecture on metal leaching and acid rock drainage prevention, mitigation, and reclamation strategies delivered by Ron Nicholson covering oxidation processes in sulphide minerals, disposal methods (underwater and engineered covers), treatment options, and site-specific considerations for permafrost, arid, and saline environments.
Acid Rock Drainage Waste Rock Geochemistry
Terms of Reference Technical Responses and Recommendations, Ekati Diamond Mine Expansion (BHP Billiton, August 2001)
20 August 2001Report
This document is a Terms of Reference review with technical responses and recommendations from various regulatory agencies and stakeholders regarding BHP Diamonds Inc.'s proposed expansion of the Ekati Diamond Mine involving three new kimberlite pipes (Sable, Pigeon, and Koala). The review addresses consultation requirements, environmental assessment scope, closure and reclamation planning, hazardous materials handling, and cumulative watershed impacts.
Development Plans Traditional Knowledge Closure & Reclamation
Introduction to Metal Leaching and Acidic Drainage, Course Outline (North West Community College, August 2001)
20 August 2001Report
A five-day course outline on metal leaching and acid rock drainage assessment, prediction, and mitigation strategies for mining operations, delivered by North West Community College in August 2001. The course covers material characterization, field assessment, case studies of operating and closed mines in British Columbia, and decision-making frameworks for managing ML/ARD risks at mine sites.
Acid Rock Drainage Waste Rock Water Quality Development Plans
Spring Waste Rock Storage Area Seepage Survey, Ekati Diamond Mine (BHP Billiton, August 2001)
2001Report
BHP Diamonds Inc. 2001 Spring Waste Rock Storage Area Seepage Survey for the EKATI Diamond Mine, submitted August 29 2001 to Melody MacLeod, Mackenzie Valley Land and Water Board, under Water Licence N7L2-1616 (Part F, Section 3(b)), Report No. 1CB009.04. Discusses Acid Rock Drainage (ARD) indicators including elevated sulphate (>30 mg/L) and pH<6, stagnant site drainage and stratification, wind-blown dust contamination near waste rock piles, bioassay-test water-chemistry evaluation, frequency of equipment malfunctions in field measurements (pH, conductivity, flow), and recommendations for early-winter visual inspection of waste-rock pile venting/hot-air signatures of ARD heat generation.
Waste Rock Acid Rock Drainage Water Quality
Community Needs, Mine Development Planning and Acid Rock Drainage (Glenda Ferris, August 2001)
~2001Presentation
Approximate date — inferred from filename
Glenda Ferris presents a framework for community engagement in mine development planning, emphasizing the need for transparent consultation on acid rock drainage risks, technical capacity building, and equitable inclusion of all community members—including First Nations—throughout mine conception, operation, and post-closure phases.
Acid Rock Drainage Waste Rock Closure & Reclamation
Proposed Development of Sable, Pigeon and Beartooth Kimberlite Pipes, Ekati Diamond Mine, Land Use Permit and Water Licence Supporting Document (BHP Billiton, August 2001)
1 August 2001Regulatory Filing
BHP Diamonds Inc. submitted this supporting document to the Mackenzie Valley Land and Water Board for regulatory permits to develop three additional kimberlite pipes (Sable, Pigeon, and Beartooth) at the Ekati Diamond Mine in the Northwest Territories. The document describes the proposed open pit mining methods, waste rock and water management strategies, infrastructure requirements, and abandonment/restoration plans for each pipe, building upon the existing regulatory framework and environmental agreements already in place for the mine.
Development Plans Regulatory Water Licence Fish Habitat
Huckleberry Mines Ltd. Water Quality Monitoring Data, Multiple Sampling Locations (BHP Billiton, 1997 to 2001)
17 July 2001Dataset
Water quality monitoring data from Huckleberry Mines Ltd. (Ekati Diamond Mine) covering multiple sampling locations from 1997 to 2001, including physicochemical parameters, toxicity tests, and dissolved/total metal concentrations tracked across tailings pond, pit, ditch, and creek locations.
Water Quality Monitoring Wastewater Effluent Quality Criteria
Introduction to Metal Leaching and Acid Rock Drainage: Aspects of Prevention, Mitigation and Reclamation, Monitoring and Contingencies (Kidd Metallurgical Division, Tailings Geochemistry, July 2001)
11 July 2001Presentation
A presentation on metal leaching and acid rock drainage prevention, mitigation, and reclamation delivered by Ron Nicholson, covering monitoring approaches (classical and recent environmental effects monitoring), in-situ tailings and waste rock sampling techniques, pore water geochemistry data from July 2000, and contingency planning strategies for managing unexpected environmental failures at mining operations.
Waste Rock Acid Rock Drainage Geochemistry
Introduction to Metal Leaching and Acid Rock Drainage: Aspects of Prevention, Mitigation and Reclamation, Beyond Yes or No Answers (Kidd Metallurgical Division, July 2001)
11 July 2001Presentation
Presentation by Ron Nicholson on metal leaching and acid rock drainage prevention, mitigation, and reclamation, delivered at Northwest Community College in August 2001, introducing methodology for quantifying environmental impacts from sulphide mine waste and establishing priorities for mitigation efforts.
Acid Rock Drainage Waste Rock Geochemistry
Tailings and Seepage Monitoring Report, Second Quarter 2001 (Huckleberry Mines Ltd., July 2001)
2001Report
Huckleberry Mines Ltd. (Smithers BC) quarterly report to Wally Bergen, Regional Manager, Ministry of Energy and Mines, July 19 2001. Q2 2001 mill throughput 1,885 tonnes/day. Includes Acid-Base Accounting (ABA) data for tailings and waste rock from Tailings Management Facility (TMF-2 downstream Granodiorite samples, Net-Acid-Generation NAG fines testing), Blast Sample geochemistry (Total Sulfur %, Sulfate %, Sulfide %, AP/NP/NPR/NNP, TIC %), and exposed waste rock pH monitoring June 2001 at East Zone Pit haul road (hornfelsed andesite with pyrite, chalcopyrite, molybdenite, gypsum). Reference example for IEMA on ARD reporting.
Waste Rock Acid Rock Drainage Geochemistry
Summary of the Equity Silver Mine 2000 Security Review (IEMA, June 2001)
22 June 2001Report
This security review report evaluates the financial and environmental requirements for reclamation and long-term management of the closed Equity Silver Mine in British Columbia, calculating a net present value liability of $23.55 million based on projected lime treatment costs, operating expenses, and periodic maintenance through 2070. The review establishes operational protocols for acid rock drainage treatment, cost triggers for security adjustments, and monitoring requirements to manage environmental risks including contaminated drainage and aquatic ecosystem impacts.
Closure & Reclamation Acid Rock Drainage Waste Rock
Water Surveillance Network Program (SNP) Monthly Reports, Water Licence N7L2-1616, Ekati Diamond Mine (BHP Billiton, January 2000 to May 2001)
11 June 2001Report
BHP Diamonds Inc. water surveillance program monthly report for May 2001 submitted to the Mackenzie Valley Land and Water Board in compliance with water licence N7L2-1616, containing water sampling results, flow and volume measurements for various lakes and facilities, waste rock production data, and weather data from the mine site.
Water Quality Monitoring Regulatory Wastewater
BHP Newsletter, Issue 8, BHP Billiton Merger (BHP Billiton, June 2001)
1 June 2001Report
BHP Diamonds Inc. newsletter (Issue 8, June 2001) announces the BHP-Billiton merger completion, reports on operational achievements including 90-day safety milestones and winter production performance, and highlights environmental research partnerships with Canadian universities, facility expansions, staff recognition, and community engagement at the Ekati Diamond Mine.
Development Plans Traditional Knowledge Wildlife Caribou Monitoring Waste Rock

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472 documents · Page 12 of 24