Mine closure plans, reclamation, abandonment, post-closure monitoring
348 documents · Page 9 of 18
A comprehensive technical short course delivered by BGC Engineering Inc. on geotechnical engineering applied to mine waste, covering soil mechanics, permafrost terrain, tailings dam design, construction methods, monitoring instrumentation, and case histories of dam failures including Omai (1995), Los Frailes (1997), and permafrost-related failures.
A five-day technical short course organized by DIAND from April 22–26, 2002, covering geotechnical engineering, permafrost design, acid rock drainage prediction and control, and risk assessment in cold environments, delivered by experts from BGC Engineering, Mehling Environmental Management, and Oboni Associates.
KOMEX International prepared a probabilistic reclamation liability estimate for the Sable, Pigeon, and Beartooth Pits at the Ekati Diamond Mine using a Monte Carlo Simulation Model, providing cost projections for 2005, 2010, and 2014 to establish security deposit requirements under the Type A Water License and Environmental Agreement.
BHP Billiton Diamonds Inc. newsletter (Issue 11, April 2002) reporting on Ekati Diamond Mine operations, including the fifth annual environmental workshop, development of Koala North underground mine (Canada's first), recovery of 10 millionth carat milestone, management appointments, and community partnership initiatives. The document covers environmental monitoring, operational excellence programs, safety training, and aboriginal partnerships.
This is BHP Billiton's 2001 Environmental Agreement and Water Licence Annual Report for the Ekati Diamond Mine, submitted to government, aboriginal peoples, and IEMA. The report documents compliance with the Environmental Agreement and Type A Water Licence N7L2-1616, detailing mining operations, water management, environmental monitoring programs, reclamation activities, and continuous improvement initiatives across the operation's five years of activity.
Technical presentation on soil cover design strategies for mine waste in cold climates, including barrier covers, store-and-release systems, and frozen covers that utilize below-freezing temperatures to restrict acid rock drainage generation.
BHP Public Hearing on the Sable, Pigeon and Beartooth Pits Developments, March 12 2002 (BHP Billiton Diamonds Inc., Yellowknife), Source Centre. Hearing transcript opened with prayer by Joe Migwi (Dogrib First Nation). Discusses Agency recommendations against the proposed change in the ammonia criteria, road design and slope effects on caribou movement and migration, vehicle-speed operational procedures to avoid caribou harassment, Technical Advisory Committee formation for licence/land-use-permit conditions, and reclamation discussion.
A presentation handout by Mehling Environmental Management Inc. on soil cover design and application for mine waste management, covering conceptual modeling, design steps, field testing, and construction methodologies to prevent acid rock drainage through water and oxygen limiting covers.
A technical presentation by BGC Engineering on permafrost engineering considerations for mining operations, covering site investigation, infrastructure design (foundations, embankments, water containment), tailings facilities, and open pit/underground mine design with specific applications to Ekati Diamond Mine projects including Diavik and Panda Pit.
Educational handout on permafrost distribution and landforms in Canada and Arctic regions, covering permafrost definition, temperature regimes, geographic extent, and typical landforms including ice wedges and pingos. Includes technical discussion of permafrost degradation in response to construction disturbance and surface modification.
This is an educational presentation on ground ice distribution, classification, and engineering properties in permafrost terrain, covering origins of ground ice, water content, and three design approaches (thawing, freezing, and frozen) with case examples from permafrost engineering projects.
This document is a database search result from the University of Oslo's Recent Literature on Lichens index containing bibliographic citations and abstracts of 14 scientific papers published between 1966 and 2000 on lichen reestablishment, growth, conservation, and colonization, particularly in boreal and arctic ecosystems.
This 2001 Wildlife Effects Monitoring Program report for the Ekati Diamond Mine presents five years of data on wildlife species and habitats, including monitoring of caribou migration patterns, grizzly bear presence, wolf denning, wolverine disturbance, and upland breeding birds. The report documents habitat losses of 1,148 hectares (46% of predicted loss), assesses effectiveness of mitigation measures for vehicle/aircraft collisions and landfill management, and evaluates impacts of mining activities on valued ecosystem components in the Northwest Territories.
This 2002 policy document establishes federal standards and principles for mine site reclamation in the Northwest Territories, addressing environmental protection, closure planning, financial security requirements, and the allocation of reclamation liability between mining operators and the Crown. It sets out mandatory elements for closure and reclamation plans, financial assurance mechanisms, and regulatory coordination to ensure sustainable mining development and reduce long-term government environmental liability.
This technical report documents the 2001 monitoring year of the Panda Diversion Channel (PDC) at the Ekati Diamond Mine, a compensation program designed to maintain fish habitat and connectivity between North Panda and Kodiak lakes following mining operations. The report presents findings on hydrology, fish spawning and migration, larval emergence, habitat stability, benthic invertebrates, and revegetation, concluding that the channel continues to function as designed and provide suitable habitat for multiple fish species.
This 2001 research report by Neil Burton Reid examines methods to stabilize processed kimberlite tailings at Ekati Diamond Mine through vegetation reclamation, testing various soil amendments (peat, lake sediment, sewage sludge, calcium sources) in both greenhouse and field trials at the Long Lake Containment Facility. Preliminary results show that organic amendments combined with nutrient sources, particularly sewage sludge with peat, significantly improve substrate conditions and plant growth, including ground cover, plant height, and development.
This annual report documents revegetation research projects conducted at BHP Billiton's Ekati Diamond Mine in 2001, including habitat creation in the Panda Diversion Channel, airstrip revegetation monitoring, Culvert Camp rehabilitation, till revegetation testing, and a survey of reclaimed mine sites near Yellowknife to predict post-closure landscape recovery.
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.
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.
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.