Closure Plan

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RECLAIM 8 User Manual, Mine Closure and Reclamation Cost Estimation Tool (Crown-Indigenous Relations and Northern Affairs Canada, June 2025)
16 June 2025Report
RECLAIM 8.0 is a user manual for a Microsoft Excel-based cost estimation tool developed by CIRNAC and GNWT to calculate closure and reclamation cost estimates for mines and advanced mineral exploration projects in the Northwest Territories and Nunavut. The manual provides guidance on estimating direct and indirect costs associated with mine closure activities, including water treatment, waste management, interim care and maintenance, and post-closure monitoring.
Closure & Reclamation Closure Plan Post-Closure Monitoring Wastewater Regulatory
Interim Closure and Reclamation Plan (ICRP) Annual Progress Report, Appendix H, Ekati Diamond Mine (Arctic Canadian Diamond Company, January 2024)
31 January 2024Report
Burgundy Diamond Mines' 2022-2023 Annual Closure and Reclamation Progress Report documents reclamation research, activities, and closure planning at the Ekati Diamond Mine, including Long Lake Containment Facility stabilization, vegetation monitoring, Old Camp reclamation, Pigeon Pit closure design, and updated reclamation security holdings of $313.3 million as of January 31, 2024.
Closure & Reclamation Closure Plan Water Quality Regulatory
Interim Closure and Reclamation Plan (ICRP), Version 3.1, Part 2, Ekati Diamond Mine (Arctic Canadian Diamond Company, December 2022)
1 December 2022Report
This is the Ekati Diamond Mine Interim Closure and Reclamation Plan Version 3.1 (December 2022), a comprehensive regulatory document outlining the permanent closure and reclamation strategy for the Ekati mine, expected to continue operations until 2029. The plan presents site-wide closure objectives, criteria, and detailed reclamation approaches for seven planning areas including open pits, underground workings, waste rock storage areas, processed kimberlite containment facilities, water management infrastructure, and buildings/infrastructure, with emphasis on wildlife safety, caribou movement, ecosystem restoration, and community engagement.
Closure & Reclamation Closure Plan Waste Rock Revegetation
Interim Closure and Reclamation Plan (ICRP) 2021 Annual Progress Report, Ekati Diamond Mine (Arctic Canadian Diamond Company, December 2021)
23 December 2021Report
Arctic Canadian Diamond Company's 2021 Annual Closure and Reclamation Progress Report documents reclamation research, activities, and monitoring completed at the Ekati Diamond Mine to meet Water Licence W2020L2-0004 reporting requirements. The report details engagement activities, reclamation research findings, completed and planned progressive reclamation activities, and updates on reclamation security held by the Government of the Northwest Territories totaling $282,126,775 as of December 31, 2021.
Closure & Reclamation Closure Plan Revegetation Waste Rock Regulatory
Wastewater and Processed Kimberlite Management Plan (WPKMP), Version 9.0, Reasons for Decision, Ekati Diamond Mine (Wek'èezhìı Land and Water Board, June 2019)
13 June 2019Regulatory Filing
The Wek'èezhìi Land and Water Board approved Dominion Diamond Mines' Wastewater and Processed Kimberlite Management Plan (WPKMP) Version 9.0 on June 13, 2019, which addresses previous board direction and proposes reduced inspection frequency for processed kimberlite deposition into Panda and Koala pits. The decision includes requirements for closure and reclamation planning consistency with the approved Interim Closure and Reclamation Plan.
Regulatory Water Licence Wastewater
Interim Closure and Reclamation Plan (ICRP), Version 3.0, Part 1, Ekati Diamond Mine (Dominion Diamond, August 2018)
15 August 2018Regulatory Filing
Dominion Diamond Ekati ULC submits Interim Closure and Reclamation Plan Version 3.0 to the Wek'èezhìi Land and Water Board, updating the 2011 approved plan to incorporate the 2018 life-of-mine plan, new research findings, regulatory requirements, and closure strategies for all permitted disturbed areas at the Ekati Diamond Mine in the Northwest Territories, with operations scheduled to continue until 2035.
Closure & Reclamation Closure Plan Regulatory
Interim Closure and Reclamation Plan (ICRP), Version 3.0, Part 2, Open Pits, Ekati Diamond Mine (Dominion Diamond, August 2018)
1 August 2018Report
This section of the Ekati Mine Interim Closure and Reclamation Plan (ICRP) Version 3.0 from August 2018 details closure objectives, criteria, and engineering works for open pits at the Ekati Diamond Mine. It presents pit-by-pit evaluations for constructing littoral zones to enhance ecological complexity in pit lakes, water quality modelling predictions, and community engagement outcomes regarding pit lake closure and reclamation strategies.
Closure & Reclamation Closure Plan Aquatics Traditional Knowledge
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
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
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
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
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
Interim Closure and Reclamation Plan (ICRP) Regulatory Case File, Ekati Diamond Mine (WLWB, 2006 to 2009)
3 February 2009Report
A collection of documents from January-February 2009 regarding BHP Billiton's Interim Closure and Reclamation Plan (ICRP) for Ekati Diamond Mine, including the working group meeting agenda for February 3-4, 2009, and detailed comments from regulators, environmental monitors, and Indigenous communities on closure objectives, reclamation research, wildlife habitat, and post-closure monitoring.
Closure & Reclamation Closure Plan Post-Closure Monitoring
Final Interim Closure and Reclamation Plan (ICRP) Working Draft, Ekati Diamond Mine (BHP Billiton, December 2008)
16 December 2008Report
This Final Interim Closure and Reclamation Plan (ICRP) working draft submitted by BHP Billiton in December 2008 outlines comprehensive closure and reclamation strategies for the Ekati Diamond Mine in the Northwest Territories, including pit lake flooding, waste rock management, infrastructure removal, and long-term environmental monitoring through 2060. The plan was developed with input from northern communities, government agencies, and regulatory bodies to ensure compliance with water licences, environmental agreements, and closure standards.
Closure & Reclamation Closure Plan Waste Rock
Interim Closure and Reclamation Plan (ICRP), Appendices Volume 2 - Draft (BHP Billiton, January 2007)
1 January 2007Report
This document is the draft Interim Closure and Reclamation Plan (ICRP) for the Ekati Diamond Mine, prepared by BHP Billiton in January 2007, providing comprehensive closure objectives, reclamation criteria, research plans, and monitoring protocols for all major mine components including open pits, underground mines, waste rock storage areas, and containment facilities.
Closure & Reclamation Closure Plan Post-Closure Monitoring
Interim Closure and Reclamation Plan (ICRP) Volume 1 - Draft, Ekati Diamond Mine (BHP Billiton, January 2007)
1 January 2007Report
This interim closure and reclamation plan for the Ekati Diamond Mine outlines BHP Billiton's objectives, methods, and timeline for closing and reclaiming the mine site, with operations anticipated to continue until 2020 and post-closure monitoring extending to approximately 2054. The plan addresses six major mine components—open pits, underground mines, waste rock storage areas, processed kimberlite containment facilities, dams/dykes/channels, and buildings/infrastructure—detailing pre-disturbance conditions, closure criteria, engineering approaches, risks, research needs, and monitoring programs.
Closure & Reclamation Closure Plan Post-Closure Monitoring Traditional Knowledge
Closure Options Evaluation Minesite Tour (BHP Billiton, July 2006)
7 July 2006Presentation
This document is a comprehensive presentation and tour package for the Ekati Diamond Mine closure options evaluation conducted July 7-9, 2006, involving community representatives, regulators, and IEMA. It details closure options for major mine components (open pits, waste rock storage areas, the Panda Diversion Channel, and Long Lake Containment Facility), technical information on mining operations, and BHP Billiton's environmental and social commitments.
Closure & Reclamation Closure Plan Waste Rock Regulatory
Agency Ekati Closure and Reclamation Workshop (IEMA, February 2006)
2006Report
Independent Environmental Monitoring Agency (IEMA) Ekati Closure and Reclamation Workshop, IEMA Boardroom, February 14-16 2006 — workshop agenda, materials and Draft NWT Mine Site Reclamation Guidelines. Sessions cover Mine Component 1 and 2 objectives, options and criteria for further development of Agency advice to BHPB. Includes Mackenzie Valley Land and Water Board (MVLWB) standard licence template Surveillance Network Program text, closure-and-reclamation plan revision/approval timing (six months after Board notification), and reclamation guidance for Aboriginal/Federal/Territorial governments, land owners, communities, regulatory authorities and mining proponents.
Closure & Reclamation Closure Plan Board Meetings Post-Closure Monitoring Waste Rock

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