Main Content
DDMI Annual Report 2025
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The 2025 PKMW EA Annual Report provides an update on the post-EA regulatory process to date, status on DDMI’s implementation of the Reasons for Decision Measures and DDMI’s commitments made during the PKMW EA or Review.
2024 PKMW EA Annual Report
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The 2024 PKMW EA Annual Report provides an update on the post-EA regulatory process to date, status on DDMI’s implementation of the Reasons for Decision Measures and DDMI’s commitments made during the PKMW EA or Review.
GNWT Annual Report 2024
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DDMI Annual Report 2023
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GNWT Annual Report 2023
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GNWT Annual measures report 2022
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2022 PKMW Annual Report
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DDMI 2021 PKMW Project EA Annual Report
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DDMI 2020 PKMW Project EA Annual Report
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GNWT Annual EA Measures Report 2020
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Letter from the Government of the Northwest Territories and the Government of Canada to the North Slave Metis Alliance regarding the Minister's decision for EA1819-01.
Letter from the Government of the Northwest Territories and the Government of Canada to the Lutsel K'e Dene First Nation regarding the Minister's decision for EA1819-01.
Letter from the Government of the Northwest Territories and the Government of Canada to the Hay River Metis Government Council regarding the Minister's decision for EA1819-01.
Letter from the Government of the Northwest Territories and the Government of Canada to the Fort Smith Metis Council regarding the Minister's decision for EA1819-01.
Letter from the Government of the Northwest Territories and the Government of Canada to the Deninu Kue First Nation regarding the Minister's decision for EA1819-01.
Letter from the Government of the Northwest Territories and the Government of Canada to the Northwest Territory Metis Nation regarding the Minister's decision for EA1819-01.
etter from the Government of the Northwest Territories and the Government of Canada to the Fort Resolution Metis Government regarding the Minister's decision for EA1819-01.
Letter from the Government of the Northwest Territories and the Government of Canada to the Kitikmeot Inuit Association regarding the Minister's decision for EA1819-01.
GNWT letter to MIM Re: Minister's Final Decision
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Letter from the Government of the Northwest Territories and the Government of Canada to the Yellowknives Dene First Nation regarding the Minister's decision for EA1819-01.
Letter from the Government of the Northwest Territories and the Government of Canada to the Tlicho Government regarding the Minister's decision for EA1819-01.
Decision Letter to MVEIRB for Diavik EA 1819-01
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FRMG letter to the GNWT
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DDMI Response to Post-EA Engagement Submissions
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LKDFN letter to the GNWT and GoC
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NWTMN letter to the GNWT
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DKFN letter to the GNWT and GoC
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TG letter to GNWT and GoC
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YKDFN letter to GNWT and GoC
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NSMA letter to GNWT and GoC
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KIA letter to GNWT and GoC
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Diavik's updated engagement record
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Note to file - summary of January 17 meeting
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The presentation for the January 17th meeting, where Review Board staff will present the Report of Environmental Assessment and Reasons for Decision.
Notice of Proceeding - presentation of the REA
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GNWT and GoC letter to ADFN Re: Report of EA
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GNWT and GoC letter to TG Re: Report of EA
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GNWT and GoC letter to NWTMN Re: Report of EA
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GNWT and GoC letter to NSMA Re: Report of EA
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GNWT and GoC letter to KIA Re: Report of EA
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GNWT letter to MIM Re: Report of EA
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This is the Review Board's Report of Environmental Assessment and Reasons for Decision for EA1819-01 - Diavik - Depositing processed kimberlite into pit(s) and underground.
Letter to the Minister about Diavik Report of EA
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The public record for EA1819-01 is now closed.
Closing argument from Diavik
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Closing argument from the NWTMN
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Closing argument from FRMC
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Closing argument from NSMA
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Closing argument from federal agencies
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Closing argument from YKDFN
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Closing argument from the GNWT
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Closing argument from LKDFN
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Closing argument from the TG
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Closing argument from DKFN
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Letter from Environment and Climate Change Canada to the Review Board in response to post-hearing follow up
Note to file - post-hearing follow up with ECCC
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Closing argument from EMAB
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Diavik response to LKDFN questions
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Note to file describing Bertha Norwegian's role as a special advisor to the Review Board for the remainder of this assessment
A letter from Deninu Kue First Nation regarding commitment 2 from the public hearings. Public hearing undertakings and commitments are described in PR#169.
Diavik response to Undertaking 2
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Diavik response to NSMA's comments
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Letter from NSMA Re: Undertaking 5
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Letter from Lutsel K'e Dene First Nation with several outstanding questions. Diavik has agreed to respond by Sept. 27, 2019.
Diavik's response to the recommendations provided by Lutsel K'e Dene First Nation in it's hearing presentation.
Updated list of Diavik commitments
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A letter from the Government of the Northwest Territories to the Review Board, indicating that the GNWT does not have any new evidence or information to submit regarding the supplementary information requests.
Notice of Proceeding - Post hearing
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Note to file - undertakings and commitments
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Transcript from the final day of public hearings, September 6 2019.
Bathurst Caribou Range Plan 2019
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Diavik's response to Board question related to project storage capacity with dam raises, undertaking 4 from the public hearing.
The transcript of the first day of technical hearings in Yellowknife on September 5, 2019.
Updated hearing presentation for ECCC
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Diavik's response to undertaking 3 from the public hearing.
Teleconference and video presentation information for day 2 of public hearing.
GNWT-Health and Social Services Response to question from Behchoko hearing about Healing, wellness and on the land programs.
Diavik's response to undertaking 1 from the public hearing.
The transcript of the community hearing in Dettah on September 4, 2019.
Note to file describing how to access video presentation services for the technical hearings in Yellowknife.
CV for YKDFN consultants
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The transcript of the community hearing in Behchoko on September 3, 2019.
Diavik provided an updated presentation for the public hearing in Dettah.
Retention of Joe Handley as special advisor
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Diavik technical hearing presentation
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Diavik community hearing presentation
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Teleconference information for the technical hearings in Yellowknife on September 5th and 6th, 2019.
NWTMN Hearing Presentation
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FRMC Hearing Presentation
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LKDFN hearing presentation
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The YKDFN's public hearing presentation
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GNWT hearing presentation
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ECCC hearing presentation
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DFO hearing presentation
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TG community hearing presentation
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TG hearing presentation
(2.58 MB)
EMAB hearing presentation
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DKFN hearing presentation
(1.6 MB)
NSMA hearing presentation
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CV for internal consultant for the Review Board
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As part of its response to interventions, DDMI submitted a video of processed kimberlite consolidation. This note to file describes how to view the video online.
DDMI response to interventions
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Notice of Proceeding describing the temporary closure of the public record for EA1819-01 in advance of the public hearings.
Diavik and GNWT meeting report
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Revised public hearing agenda
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CVs for Diavik consultants
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Public Hearing agenda
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YKDFN TK Reports referenced in Intervention
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CVs from EMAB technical experts
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Curriculum vitae for Tony Pearse - technical expert with Tlicho Government.
DDMI response to the Review Board's supplemental information request #5
Meeting notes from the second pre-hearing conference, held on August 9 2019.
Letter to interveners requesting information necessary to finalize pubic hearing agenda.
Slides for the second pre-hearing conference, to be held at 10am on August 9, 2019.
Corrections to interventions from ECCC and YKDFN
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Draft Public hearing agenda
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Intervention from NSMA
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Notice of Proceeding describing the requirement for interveners and the developer to submit CVs for expert technical witnesses.
Letter from the NWT Treaty 8 Tribal Corporation - Akaitcho IMA Office to the Review Board withdrawing its intervener status for these hearings.
Correspondence with NSMA and the Akaitcho IMA Office regarding late submission of NSMA's and the Akaitcho IMA Office's interventions. Diavik has indicated it will respond, as long as the interventions are received by August 7, 2019.
Pre-hearing conference follow-up meeting agenda
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Intervention from NWT Metis Nation
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Intervention from FRMC
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Intervention from TG
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Intervention from GNWT
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Intervention from YKDFN
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Intervention from ECCC
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Intervention from DFO
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Intervention from LKDFN
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Attachments for Intervention from EMAB
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Intervention from EMAB
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Intervention from DKFN
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Diavik-DFO Meeting Report
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A letter from the Review Board to Fort Resolution Metis Council in response to the July 29, 2019 extension request for interventions (PR#99).
Notice of proceeding on how parties can respond to the evidence provided by Diavik in response to the Review Board's supplemental information request through the public hearing phase of this EA.
Review Board response to FRMC hearing request
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Notice of Proceeding describing how members of the public can participate in the hearings for this EA.
Diavik's responses to Review Board supplementary information requests #1-4 and timeline for response to supplementary information request #5
FRMC Request for extension on interventions
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A letter from the Review Board requiring clarification and more detailed information on several topics. The letter identifies five supplemental information requests for diavik to respond to.
List of interveners
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Note to file describing a meeting between Review Board staff and consultants and Diavik Diamond Mines Inc. on July 25, 2019.
Letter to Participants on Diavik Site Tour
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Diavik-ECCC Meeting Report
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A letter from the Chair of the Review Board to the Minister of Crown-Indigenous Relations, regarding the participation of Board member Joe Handley in the Diavik public hearings and the vacant Tlicho Government nomination Board position.
The FRMC have invited the Review Board to host a community hearing in Fort Resolution.
Pre-hearing Conference Meeting Notes
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A joint letter from the Mackenzie Valley Environmental Impact Review Board and the Wek'eezhii Land and Water Board in response to Diavik's June 19 letter (PR#64).
Workplan - July 10, 2019
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The revised call-in information for the pre-hearing conference.
The Mackenzie Valley Review Board's pre-hearing conference powerpoint presentation.
Part 3 of 3 of the attachments from the ORS comment table for the Information Requests for DDMI's Depositing Process Kimberlite in Pits and Underground (EA1819-01).
PDF's include: the TK Panel session report Our Youth Our Future, DDMI's cover letter to MVEIRB re 2nd round IR's, Tlicho Government's summary of recommendations, and Tlicho Governments Diavik Report (1999).
The attachments from the ORS comment table for the Information Requests for DDMI's Depositing Process Kimberlite in Pits and Underground (EA1819-01).
PDF includes: Part 2 of the TK Panel Reefs and Water Monitoring Report, the TK panel Session report on Caribou and NCRP Closure Plan, and the TK Panel session report on options for processed kimberlite.
The attachments from the ORS comment table for the Information Requests for DDMI's Depositing Process Kimberlite in Pits and Underground (EA1819-01). Index to the pdf's included on the first page of the document.
Information Requests - ORS Summary
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NWT Treaty 8 Tribal Corporation - Akaitcho IMA Implementation Office response to the Review Board's April 26, 2019 information requests (Questions 1 and 2, PR#43).
Notice of Proceeding - site visit opportunity
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Pre-hearing Conference Agenda
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A notice of proceeding with guidance from the Review Board on preparing interventions.
Federal Government response to Review Board IRs
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FRMC response to Review Board IRs
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NSMA response to Review Board IRs
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DKFN response to Review Board IRs
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NWT Metis Nation response to Review Board IRs
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GNWT response to Review Board IR
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LKDFN response to Review Board IRs
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TG response to Review Board IRs
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EMAB response to Review Board IR
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YKDFN response to Review Board IRs
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Notice of Proceeding - Hearing Phase
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Workplan - June 28, 2019
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Note to file- Meeting report reminder
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This document contains the comments and attachments received from parties and the developer during the ORS review of Diavik's request for a clarification on scope (PR#46).
A letter from Diavik to the Review Board and the Wek'eezhii Land and Water Board, requesting an updated on the MVEIRB-WLWB coordinated process for the Processed Kimberlite to Pits and Underground project. See PR#3 for the Boards' original joint letter in February 2019.
Letter from the Review Board to the Yellowknives Dene First Nation in response to the June 6, 2019 extension request.
YKDFN Extension Request
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GNWT's response to the Review Board's letter (PR#57), indicating the GNWT intends to fully participate in this EA and at the public hearings.
A notice of proceeding describing the Review Board's decision to grant Lutsel K'e Dene First Nation's request for a two-week extension for preparing information requests.
MVEIRB letter to DFO Re: participation in EA
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MVEIRB letter to ECCC Re: participation in EA
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MVEIRB letter to GNWT Re: participation in EA
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A letter from the Government of the Northwest Territories to the Review Board, describing the relevant roles and expertise of GNWT departments in this environmental assessment.
IR Extension Request from LKDFN
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The Review Board's Reasons for Decision on clarification on scope of assessment for EA1819-01.
Summary Impact Statement
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Notice of Proceeding to parties regarding clarifications on the scope of assessment in response to Diavik's May 2, 2019 letter on scope.
Updated Participant Funding Letter from CIRNAC
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Participant Funding Announcement from CIRNAC
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At the request of Lutsel K'e First Nation (LKDFN), Review Board staff have removed PR#44, which containted LKDFN's initial response to the Board's information requests.
ECCC letter to Review Board Re: Species at Risk
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A notice of proceeding from the Review Board regarding the items discussed in the May 2 letter from Diavik (PR#46)
Letter from Diavik to the Review Board related to its plans for submitting information request responses and the Summary Impact Statement. The letter also discusses Diavik's position on Scope of Development and scope of assessment for this environmental assessment.
Note to file describing a meeting between Review Board staff and Diavik staff on April 30, 2019.
Review Board Information Requests to Parties
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Updated Workplan
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Notice of Proceeding - information requests
(246.76 KB)
The Review Board's final scope for EA1819-01, including its reasons for decision.
Note to file to all parties describing a meeting held between Review Board staff and staff and consultants from Diavik Diamond Mines Inc.
Request for extension to the participant funding application deadline submitted by Fort Resolution Metis Council.
This document contains all of the comments and attachments received from parties and the developer from the ORS review of the draft Scoping Document and Workplan.
A letter from the Tlicho Government to the Review Board, discussing the proposed environmental assessment and water licence amendment process for EA1819-01.
This Notice of EA and Initiation of Aboriginal consultation letter from the GNWT to the Akaitcho Pre-screening Board includes the March 15th letter from the GNWT and GoC to the Akaitcho Dene First Nation Chiefs (PR#28).
Scoping Meeting Summary
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Updated Notice to Parties re Participant Funding
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Participant Funding Application Form
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Participant Funding Guide
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A letter from the Mackenzie Valley Review Board to Environment and Climate Change Canada identifying the species under the Species at Risk Act that might be affected by Diavik's proposed project (EA1819-01).
The Comprehensive Study Report the Canadian Environmental Assessment Act completed on the Diavik Dimond Mine in 1999. The Mackenzie Valley Review Board references this report in its reason for decision for referring Diavik's Depositing Process Kimberlite in Pits and Underground project to environmental assessment.
The letter's sent to indigenous governments and organizations from the GNWT Department of Lands and the Government of Canada's Northern Projects Management Office, notifying groups of the environmental assessment for Diavik's project (EA1819-01) and the initiation of the governments' consultation on the project. PR#35 is a similar letter from the GNWT to the Akaitcho Pre-screening Board.
Diavik's revised presentation for the scoping session in Yellowknife, March 18.
Review slides for scoping meeting
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Developer's Presentation - Scoping Session
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Scoping Meeting Agenda - Diavik EA1819-01
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A summary table of all comments, recommendations, and developer responses received on the online review system for the review of Diavik's responses to the WLWB's Aug. 31 information requests.
A summary table of all comments, recommendations, and developer responses received on the online review system for the initial review of Diavik's amendment application.
A notice of proceeding from the Review Board, providing more details about an upcoming scoping meeting in Yellowknife.
The response from Diavik to DFO regarding the information requests from the WLWB technical session on the water license amendment (W2015L2-0001) to deposit process kimberlite in mine workings.
The response from the GNWT Environment and Natural Resources to the information requests from the WLWB technical session on Diavik's water license amendment (W2015L2-0001) to deposit process kimberlite into mine workings.
The response from the Environmental Monitoring Agency Board (EMAB) to the information requests from the WLWB technical session on Diavik's water license amendment application (WL2015L2-0001) to deposit process kimberlite into mine workings.
The Department of Fisheries and Ocean's (DFO) response to the information requests from the WLWB technical session on Diavik's water license (W2015L2-0001) amendment application to deposit process kimberlite in mine workings.
The Diavik's response to WLWB's information requests from the WLWB's technical session for the water license (W2015L2-0001) amendment request for the deposition of processed kimberlite into mine workings.
Environment and Climate Change Canada's response to the IR's issued to Diavik from the WLWB Technical Sessions regarding the W2015L2-0001 amendment application.
A letter from the WLWB detailing the Information Requests resulting from the WLWB Technical Session on Diavik's Water License (W2015L2-0001) Amendment Application for Processed Kimberlite to Mine Workings.
Diavik's presentation from the WLWB's Technical Session on the water license (W2015L2-0001) amendment application to deposit process kimberlite into mine workings.
A report from Golder Associates regarding the model calibration for Diavik's Sensitivity Analysis Results. See PR#007 for excel file of the sensitivity analysis results for the A418 development case.
Diavik's response to the information request from the WLWB for more information regarding the amendment application to Water License W2015L2-0001 for the deposition of processed kimberlite into mine workings. The response includes a technical report from Golder Associates that summarizes the preliminary modeling analysis at closure/post-closure in response to the WLWB's requests.
The Diavik's response to the WLWB information request for more information to inform a preliminary screening determination for the amendment application for the placement of processed kimberlite in mine workings.
The information request from the WLWB to DDMI regarding the Water License (W2015L2-0001) Amendment Application for Processed Kimberlite to Mine Workings.
Part 2 of DDMI's Interim Closure and Reclamation Plan v3.2 replacing North Country Rock Pile ICRP.
Part 3 of DDMI's Interim Closure and Reclamation PLan v3.2 replacing North Country Rock Pile ICRP.
Part 4 of DDMI's Interim Closure and Reclamation PLan v3.2 replacing North Country Rock Pile ICRP.
Part 5 of DDMI's Interim Closure and Reclamation PLan v3.2 replacing North Country Rock Pile ICRP.
Part 6 of DDMI's Interim Closure and Reclamation PLan v3.2 replacing North Country Rock Pile ICRP.
Part 7 of DDMI's Interim Closure and Reclamation PLan v3.2 replacing North Country Rock Pile ICRP.
Part 1 of DDMI's Interim Closure and Reclamation Plan v3.2 replacing North Country Rock Pile ICRP.
The results of Diavik's sensitivity analysis for the A418 Development Case.
A letter from the Mackenzie Valley Review Board to the Distribution list regarding the notice of referral to environmental assessment of DDMI's Depositing of Processed Kimberlite in Pits and Underground.
The Water License Amendment Application and supporting documents for Diavik Diamond Mines (2012) Inc.'s (DDMI) request to the WLWB to amend the Water License WL2015L2-0001 to allow for the deposition of Processed Kimberlite (PK) material into mine workings.
Draft EA Scoping Document and Workplan
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A joint letter from the WLWB and the Mackenzie Valley Review Board outlining their commitment to coordinate their activities regarding the assessment of Diavik's application of Depositing Process Kimberlite in Pits and Underground.
Reasons for Decision for Referral to EA
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Notice of Referral to EA
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