Closure & Reclamation

Mine closure plans, reclamation, abandonment, post-closure monitoring

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Environmental Agreement and Water Licence Annual Report 2012, Ekati Diamond Mine (Dominion Diamond, April 2013)
1 April 2013Report
This is the 2012 Environmental Agreement and Water Licence Annual Report for the Ekati Diamond Mine, submitted by Dominion Diamond Ekati Corporation in April 2013, detailing compliance with Type A Water Licence W2009L2-0001 and the Environmental Agreement requirements. The report provides comprehensive monitoring data on water use, waste management, kimberlite processing, wildlife and aquatic effects monitoring, closure planning, spill management, and all operational activities throughout 2012.
Monitoring Regulatory Water Quality
Annual Interim Closure and Reclamation Plan (ICRP) Progress Report, EKATI Diamond Mine (BHP Billiton, December 2012)
21 December 2012Report
BHP Billiton's 2012 Annual Interim Closure and Reclamation Plan Progress Report documents the first year of implementation of the approved ICRP Version 2.4, detailing reclamation research activities, community engagement, progressive reclamation work completed, and proposed 2013-2015 milestones for closure planning at the Ekati Diamond Mine. The report confirms that BHP Billiton remains on schedule with reclamation research and planning activities in compliance with regulatory obligations under the Water Licence W2009L2-0001 and Environmental Agreement.
Closure & Reclamation Closure Plan Regulatory Waste Rock
Environmental Agreement and Water Licence Annual Report 2011 (BHP Billiton, April 2012)
30 April 2012Report
BHP Billiton Canada Inc.'s 2012 Environmental Agreement and Water Licence Annual Report documents the EKATI Diamond Mine's 2011 operations and compliance with regulatory requirements, including water use, waste management, mining activities, and environmental monitoring programs. The report covers water and waste summaries, construction activities, reclamation work, aquatic effects monitoring, wildlife monitoring, and closure planning for the diamond mine located 300 km northeast of Yellowknife in the Northwest Territories.
Regulatory Water Licence Monitoring
Environmental Impact Report (EIR) Technical Session & Related IEMA Meeting Materials, Ekati Diamond Mine (BHP Billiton, March to September 2012)
2012Meeting Agenda
Agenda — BHP Billiton Canada Inc. Environmental Impact Report (EIR) Technical Session for the EKATI Diamond Mine, Katimavik Room, Explorer Hotel, July 9-11 2012. Day 1 covers Completion of the Panda Diversion Channel (PDC) Monitoring Program (constructed 1997 as compensation for stream-habitat loss, 10-year monitoring) by François Landry (Rescan Environmental Services Ltd.) — comparison to Pigeon and Polar-Vulture Streams reference systems. Day 2 covers EIR Technical Session including the Effluent Discharge Plan to restore Long Lake Containment Facility (LLCF) Emergency Storage Capacity through winter/spring (within allowable flow rates) and EKATI Site-Specific Water Quality Objective (SSWQO) for Nitrate.
Agendas Board Meetings Fish Habitat
Year in Review, Celebrate the Discovery, Ekati Diamond Mine (BHP Billiton, 2011)
31 December 2011Report
BHP Billiton's 2011 Year in Review for EKATI Diamond Mine reports on operational achievements including 3 million carats of rough diamond production, 1,213 person-years of employment (650 for Northerners and Northern Aboriginals), C$327 million in spending, and major community investments in education and women's housing; the document also highlights safety excellence, environmental stewardship through ISO certifications, and extensive Traditional Knowledge preservation projects with Impact Benefit Agreement partners.
Development Plans Traditional Knowledge Wildlife Closure & Reclamation Air Quality
Wastewater and Processed Kimberlite Management Plan Version 2.0, EKATI Diamond Mine (BHP Billiton, October 2011)
20 October 2011Report
BHP Billiton's Wastewater and Processed Kimberlite Management Plan Version 2.0 (October 2011) describes the comprehensive management strategy for all wastewater and fine processed kimberlite at the Ekati Diamond Mine, submitted to the Wek'èezhii Land and Water Board for approval under Water Licence W2009L2-0001. The plan proposes significant updates to processed kimberlite deposition strategy, deferring or potentially eliminating the need for Cell D deposition by utilizing upstream areas in Cells A and C and the mined-out Beartooth Pit, while maintaining water quality standards and minimizing environmental effects in the receiving environment.
Kimberlite Tailings Wastewater Water Quality
Cover System Design for Mine Closure Short Course, Mine Closure 2011 (BHP Billiton, September 2011)
18 September 2011Report
This is the conference program and materials for the 6th International Conference on Mine Closure held September 18-21, 2011 at the Fairmont Chateau Lake Louise in Alberta, Canada. The document includes a short course on Cover System Design for Mine Closure delivered on September 18, 2011 by experts from the University of Alberta and Golder Associates, along with the full conference schedule, plenary speakers, technical sessions, and sponsorship information for the 600-delegate international conference on mine closure practices.
Closure & Reclamation Closure Plan Waste Rock
Interim Closure and Reclamation Plan (ICRP) Version 2.4, EKATI Diamond Mine (BHP Billiton, August 2011)
31 August 2011Report
BHP Billiton's Interim Closure and Reclamation Plan Version 2.4 for the EKATI Diamond Mine (August 2011) outlines comprehensive strategies for site reclamation including pit lake creation through flooding, waste rock storage management with permafrost preservation, Long Lake Containment Facility capping, and progressive reclamation of infrastructure. The plan incorporates regulatory requirements from water licences, environmental agreements, and Board directives, with extensive research programs addressing uncertainties in water quality, wildlife safety, and vegetation sustainability.
Closure & Reclamation Closure Plan Water Quality
Interim Closure and Reclamation Plan (ICRP) Version 2.4, Ekati Diamond Mine (BHP Billiton, August 2011)
31 August 2011Report
BHP Billiton's Interim Closure and Reclamation Plan (Version 2.4) for the EKATI Diamond Mine in the Northwest Territories outlines comprehensive strategies for mine closure and environmental reclamation, including pit lake creation, waste rock management, processed kimberlite containment, infrastructure removal, and extensive research and monitoring programs to address uncertainties in water quality, wildlife safety, and ecosystem recovery.
Closure & Reclamation Closure Plan Water Quality
Fay Bay Monitoring Program, Ekati Diamond Mine (BHP Billiton, August 2011)
12 August 2011Report
This report presents the 2010 Fay Bay Aquatic Monitoring Program results following an unplanned processed kimberlite (PK) release in May 2008. The monitoring data indicate recovery of both aquatic and terrestrial environments, with vegetation re-establishing and water quality parameters returning toward baseline conditions, though some chemical effects remain three years after the incident.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Environmental Agreement and Water Licence Annual Report, Ekati Diamond Mine (BHP Billiton, April 2011)
30 April 2011Report
BHP Billiton Canada Inc.'s 2010 Environmental Agreement and Water Licence Annual Report documents compliance with Type A Water Licence W2009L2-0001 and the Environmental Agreement for the Ekati Diamond Mine. The report provides comprehensive data on water and waste management, mining operations (4.9 million tonnes of ore processed), environmental monitoring programs, spill incidents, and closure and reclamation planning with an updated liability estimate of $157 million CAD.
Environmental Agreement Water Licence Water Quality
General Fish-out Protocol for Lakes and Impoundments in the Northwest Territories and Nunavut (Fisheries and Oceans Canada, 2011)
~2011Report
Approximate date — inferred from filename
This technical report provides a standardized general fish-out protocol for lakes and impoundments in the Northwest Territories and Nunavut, developed by Fisheries and Oceans Canada to ensure consistent and scientifically rigorous removal of fish populations when development activities require lake destruction or dewatering. The protocol includes detailed methodologies for fish community assessment, biological data collection, limnological sampling, habitat inventory, and data management to maximize utility of harvested fish for local communities while gathering ecological data.
Fish Habitat Aquatic Effects Monitoring (AEMP)Benthic Invertebrates
Guidelines for the Closure and Reclamation of Advanced Mineral Exploration and Mine Sites in the NWT (AANDC, 2011)
~2011Report
Approximate date — inferred from filename
Comprehensive guidelines for closure and reclamation planning of advanced mineral exploration and mine sites in the Northwest Territories, developed jointly by Aboriginal Affairs and Northern Development Canada and the Mackenzie Valley Land and Water Boards. The document outlines regulatory requirements, an objectives-based approach to closure planning, and technical considerations for site closure and reclamation.
Closure & Reclamation Closure Plan Post-Closure Monitoring
2008-2009 Fay Bay Monitoring Program, Ekati Diamond Mine (BHP Billiton, September 2010)
20 September 2010Report
This 2008-2009 monitoring report documents the environmental response to and effects assessment of an unplanned release of approximately 4,465 m³ of processed kimberlite into Fay Bay from Cell B of the Long Lake Containment Facility in May 2008. The report presents results of land-based vegetation reclamation monitoring and comprehensive aquatic monitoring including water quality, sediment chemistry, benthic invertebrate and fish community assessments, concluding that effects were generally localized to Fay Bay with evidence of short-term impacts and successful cleanup of over 80% of the released material.
Monitoring Aquatics Water Quality
Interim Closure and Reclamation Plan (ICRP) Public Hearing, Ekati Diamond Mine (IEMA, September 2010)
2010Regulatory Filing
Interim Closure and Reclamation Plan (ICRP) Public Hearing September 28-29 2010 for the Ekati Diamond Mine — BHP Billiton's Sustainable Development Policy submissions to the Wek'èezhii Land and Water Board, including Part 2 "No Jurisdiction Re: Fish Habitat" arguing that DFO under the Fisheries Act has the obligation to determine the manner of securing fish-habitat compensation (specific-vs-general statutory conflict doctrine), Main Site Water Licence reclamation terms under Mackenzie Valley Land Use Regulations s. 26, DFO's 2006 "Practitioners Guide to Writing a Subsection 35(2) Fisheries Act Authorization" reference, and extrinsic-evidence citations to Minister of Indian Affairs and Northern Development.
Closure & Reclamation Regulatory Fish Habitat
BHP Billiton Additional Information for ICRP Hearing, Fish Habitat Compensation Agreement Exhibits (IEMA, June to July 2010)
2010Regulatory Filing
BHPB Additional Information for the Interim Closure and Reclamation Plan (ICRP) Hearing, filed June 2010 — includes the Independent Environmental Monitoring Agency (IEMA) Submission to the Wek'èezhii Land and Water Board (WLWB) Public Hearing on the Ekati ICRP, May 2009 (Violet Camsell-Blondin WLWB). Discusses DIAND audit findings on mine reclamation and abandonment policy (1993 audit identifying need for policy), Technical Advisory Committee (TAC) membership (affected First Nations and Aboriginal groups, March 1996 BHP licence application), and Nunavut Impact Review Board's primary jurisdiction status.
Closure & Reclamation Closure Plan Regulatory
Environmental Agreement and Water Licences Annual Report 2009, EKATI Diamond Mine (BHP Billiton, April 2010)
30 April 2010Report
BHP Billiton Canada Inc.'s 2009 Environmental Agreement and Water Licences Annual Report for the EKATI Diamond Mine documents compliance with Type A Water Licence W2009L2-0001 and the Environmental Agreement, providing comprehensive data on water use, waste management, environmental monitoring, and closure planning activities. The report includes detailed operational metrics, monitoring program results, and summaries of environmental management activities conducted throughout 2009.
Regulatory Water Licence Environmental Agreement
Updated 2008 Interim Closure and Reclamation Plan (ICRP), Appendix 5.1-4A Reclamation Research Plans, Ekati Diamond Mine (BHP Billiton, February 2010)
2010Report
Updated 2008 Interim Closure and Reclamation Plan (ICRP) for the Ekati Diamond Mine, BHP Billiton Canada Inc. (Operator), with ICRP Appendix 5.1-4A Reclamation Research Plans. Includes Research Plan #1 Pit Perimeter Safety (uncertainty around wildlife and people safety near open pits during pit flooding and post-closure), and Research Plan #14 Stabilization of Extra Fine Processed Kimberlite (EFPK) in the Long Lake Containment Facility (LLCF) — kimberlite characterization for Panda and Fox pipes (clay types, settling characteristics), Project Tracking PKCA schedule, total expected costs $1.0-1.5 million, references to BHP Billiton 2006 Wastewater and Processed Kimberlite Management Plan.
Closure & Reclamation Closure Plan Wildlife Regulatory
Year in Review, Ekati Diamond Mine (BHP Billiton, December 2009)
31 December 2009Report
BHP Billiton's 2009 Year in Review reports on Ekati Diamond Mine's operations, highlighting safety improvements with a 47% decrease in injury rates, employment of over 2,000 people with 59% Northern participation, $268 million in spending (67% with Northern businesses), and community investments exceeding $2.9 million. The report also documents environmental management initiatives, production achievements, and progress on future mining projects.
Development Plans Monitoring Greenhouse Gas Closure & Reclamation Wildlife Traditional Knowledge
Resourcing the Future, Annual Report 2009 (BHP Billiton, October 2009)
1 October 2009Report
BHP Billiton's 2009 Annual Report describes the company's performance during the global financial crisis, including record operating cash flow of US$18.9 billion and net profit of US$5.9 billion, while noting seven workplace fatalities and discussing the company's diversified portfolio of tier-one mining and energy assets across petroleum, metals, and coal operations globally.
Development Plans Exploration Closure & Reclamation Greenhouse Gas

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