Closure & Reclamation

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

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Processed Kimberlite Tailings Reclamation, Annual Report, Ekati Diamond Mine (BHP Billiton, January 2001)
19 January 2001Report
This annual report documents a comprehensive study on stabilizing processed kimberlite tailings at Ekati Diamond Mine through vegetation reclamation using various soil amendments. The research combines greenhouse and field components evaluating amendment combinations including peat, lake sediment, sewage sludge, and calcium sources to improve plant growth on the serpentine tailings at Long Lake Containment Facility.
Closure & Reclamation Revegetation Kimberlite Tailings Monitoring
Sable, Pigeon & Beartooth Kimberlite Pipes Water Licence & Land Use Permit Regulatory Case File, Binder 3 (BHP Billiton, 2001 to 2002)
2001–2002Regulatory Filing
Sable, Pigeon and Beartooth (SPB) Binder 3 for the Ekati Diamond Mine BHP Billiton Diamonds Inc. development application (2001-2002). Includes regulatory-phase Tab 1: BHPB's reply to final written submissions on the SPB public hearing (Jim Excell BHP June 18 2002 to Melody McLeod MVLWB), MVLWB workplan correspondence (Laurie Cordell, David Livingstone DIAND, Red Pedersen Agency), Sable Pipe geochemistry (host rock almost entirely granite with small biotite-schist and diabase-dyke components, granite waste rock kimberlite ore), site plan layouts with PROAPE pit and waste piles, and dust-suppression water usage 100,000 m³/yr from Falcon (with GNWT RWED's Laurie Bruno (MVLWB Regulatory Officer) correspondence June 2001).
Regulatory Development Plans Water Licence Correspondence
News Clippings, Transcripts and Media Releases, Ekati Diamond Mine (CBC, 2001 to 2005)
2001–2005Report
News Clippings, Transcripts and Media Releases binder for the Ekati Diamond Mine (1996-2004). Includes CBC Special Report October 7 2004 "Diamond Mines take More Environmentally Responsible Approach", News/North Business Briefs June 11 2001 "BHP-Billiton merger approved" (potential $10 billion petroleum business divestiture speculation), Robin Staples / Zabey Nevitt / Kevin O'Reilly internal IEMA forwarded news clippings, "BHP Diamonds Inc. is the operator" investor materials on Dia Met's continued global diamond exploration program, and Yellowknifer (January 5 2001) review of nine recommendations on the Agency responsible for Ekati environmental monitoring.
Correspondence Regulatory Water Quality Wildlife
Reclamation Liability Estimate, Sable, Pigeon & Beartooth Pits, Ekati Diamond Mine, Appendices (Komex, 2001)
~2001Report
Approximate date — inferred from filename
A comprehensive reclamation liability estimate for the Sable, Pigeon, and Beartooth pit additions and the broader Ekati Diamond Mine, detailing estimated costs across multiple liability units (camp facilities, operations, open pits, tailings cells, waste rock storage, monitoring) projected for 2001, 2005, 2010, and 2014 with confidence intervals (10th percentile, median, and 90th percentile estimates).
Closure & Reclamation Closure Plan Waste Rock Water Quality Monitoring
Reclamation Research Program 2000, EKATI Diamond Mine (BHP Billiton, 2000)
18 December 2000Report
This 2000 reclamation research report documents BHP Diamonds' revegetation efforts at the Ekati Diamond Mine, including soil topdressing effectiveness at Fox portal, vegetation establishment in the Panda Diversion Channel, and development of a reclamation registry. After five growing seasons, organic soil topdressing proved most favorable for plant growth, while native-grass cultivars achieved highest cover (39-52%), and Arctic Pendant Grass transplants in the diversion channel showed 60-92% survival rates.
Closure & Reclamation Revegetation Monitoring Aquatics Fish Habitat
Reclamation Research Program 2000, Ekati Diamond Mine (ABR, Inc., December 2000)
18 December 2000Report
This 2000 reclamation research report documents vegetation establishment efforts at Ekati Diamond Mine, including soil topdressing effectiveness at Fox portal and riparian habitat creation in Panda Diversion Channel. The report evaluates microbial activity, plant survival rates, and natural colonization across different soil amendments and transplant methods, and describes development of a reclamation registry to track mine site restoration progress.
Closure & Reclamation Revegetation Monitoring Waste Rock Water Quality
BHP Newsletter, Issue 6 (BHP Billiton, December 2000)
1 December 2000Report
BHP Diamonds Inc. newsletter for December 2000 reporting on Ekati Diamond Mine operations, including Family Day visits, environmental assessment progress for Sable, Pigeon and Beartooth pipes, reclamation research at Long Lake Containment Facility, mining development at Koala and Misery pits, and operational improvements in safety, maintenance, and workforce development.
Development Plans Closure & Reclamation Revegetation
Processed Kimberlite Tailings Reclamation Research Program, Ekati Diamond Mine, 2000 Annual Report (BHP Billiton, December 2000)
1 December 2000Report
This annual report documents the Processed Kimberlite Tailings Reclamation Research Program for 2000 at the Ekati Diamond Mine, presenting first-year results from three field studies (Soil Amendment, Revegetation, and Species Trials) designed to develop effective revegetation techniques for processed kimberlite tailings disposal cells. The studies evaluate soil amendments, seed treatments, and plant species suitability to determine whether vegetative cover or rock cover is appropriate for long-term tailings stabilization.
Closure & Reclamation Revegetation Kimberlite Tailings Water Quality
BHP Newsletter, Issue 6, Family Day 2000 (BHP Billiton, December 2000)
1 December 2000Report
BHP Diamonds Inc. newsletter for December 2000 reporting on Family Day 2000 visits, mine development progress at Misery and Koala pits, reclamation research at Long Lake Containment Facility, the Positive Attitude Safety System (PASS), operational excellence initiatives, and various personnel and community activities at the Ekati Diamond Mine.
Development Plans Closure & Reclamation Revegetation Waste Rock
Processed Kimberlite Tailings Reclamation Research Program, 2000 Annual Report, Ekati Diamond Mine (BHP Billiton, December 2000)
1 December 2000Report
This 2000 annual report documents BHP Diamonds' Processed Kimberlite Tailings Reclamation Research Program at the Ekati Diamond Mine, detailing three field studies (Soil Amendment, Revegetation, and Species Trials) established in Cell B of Long Lake Containment Facility to develop effective techniques for revegetating processed kimberlite tailings. The report presents baseline soil chemistry data, study design rationale, construction methods, monitoring protocols, and first-year results from revegetation research using various soil amendments and native grass species.
Closure & Reclamation Revegetation Kimberlite Tailings
BHP Newsletter, Issue 6, December 2000 (BHP Billiton, December 2000)
1 December 2000Report
BHP Diamonds Inc. newsletter for December 2000 reporting on operations at the Ekati Diamond Mine, including family visits, environmental assessment progress for Sable-Pigeon-Beartooth pipes, reclamation research at Long Lake Containment Facility, mining operations at Koala and Misery pits, staff achievements, and ongoing operational improvements.
Closure & Reclamation Revegetation Kimberlite Tailings Monitoring
King Pond Fish Habitat Compensation Program, Ekati Diamond Mine (BHP Billiton, September 2000)
1 September 2000Report
BHP Diamonds Inc. proposes a fish habitat compensation plan for King Pond at the Ekati Diamond Mine, which will be converted into a water settling facility for the Misery Pit development. The plan addresses harmful alteration of fish habitat (HADD) under the federal Fisheries Act and implements the Department of Fisheries and Oceans' No Net Loss policy through mitigation measures during operation and habitat restoration and enhancement following mine closure.
Fish Habitat Regulatory Development Plans Closure & Reclamation
Environmental Assessment Information Update #8, Sable, Pigeon & Beartooth Kimberlite Pipes, Ekati Diamond Mine (MVEIRB, July 2000)
20 July 2000Report
EA Information Update #8 from the Mackenzie Valley Environmental Impact Review Board detailing the progress of BHP Ekati Diamond Mines' environmental assessment for the Sable, Pigeon, and Beartooth Kimberlite Pipes project, including conformity decisions, information request procedures, and upcoming public meeting scheduled for August 30, 2000 in Yellowknife.
Development Plans Regulatory Exploration Closure & Reclamation
Conformity Response, Sable, Pigeon & Beartooth Kimberlite Pipes, Ekati Diamond Mine (BHP Billiton, July 2000)
1 July 2000Regulatory Filing
BHP Diamonds Inc.'s conformity response to the Review Board addressing six non-conformity items regarding the proposed development of Sable, Pigeon, and Beartooth kimberlite pipes at Ekati Diamond Mine, including temporary shutdown procedures, migratory bird habitat assessment, kimberlite toxicity testing, vegetation classifications, temporal boundaries for environmental assessment, and quarry site selection for construction materials.
Development Plans Closure & Reclamation Wildlife Air Quality
BHP Environment and Community Report 2000 (BHP Billiton, June 2000)
30 June 2000Report
BHP's Corporate Environment and Community Report 2000 presents the company's environmental and social performance across its global mining, petroleum, and steel operations for the 13-month period ending 30 June 2000. The report outlines BHP's integrated Health, Safety, Environment and Community Policy, management standards, project lifecycle approaches, and performance against targets aligned with the company's goal of zero harm to people and the environment.
Development Plans Air Quality Water Quality Waste Rock Wildlife
Preliminary Design of Water Control Structures, Sable, Pigeon & Beartooth Pit Developments, Ekati Diamond Mine (EBA Engineering, April 2000)
1 April 2000Report
EBA Engineering Consultants prepared preliminary designs for water control structures at three proposed kimberlite pit developments (Sable, Pigeon, and Beartooth) at the Ekati Diamond Mine. The report includes designs for frozen core retention dams, semi-pervious filter dykes, stream diversions, and water management systems to address hydrologic and environmental requirements for each site.
Development Plans Wastewater Water Quality Closure & Reclamation
Reclamation Research Program, 1999, Ekati Diamond Mine (ABR Inc., May 2000)
1 March 2000Report
This 1999 annual report documents BHP Diamonds' reclamation research program at the Ekati Diamond Mine, evaluating kimberlite and lake sediment as growth substrates for vegetation, assessing riparian and wetland vegetation establishment in the Panda Diversion Channel, and monitoring reclamation efforts at multiple mine disturbance sites. The research focused on developing techniques to support long-term plant establishment and ecosystem recovery in support of mine closure and reclamation objectives.
Closure & Reclamation Revegetation Kimberlite Tailings Water Quality
Interim Abandonment and Restoration Plan, Ekati Diamond Mine (BHP Billiton, February 2000)
1 February 2000Report
This interim abandonment and restoration plan describes BHP's strategy for reclaiming disturbed areas at the Ekati Diamond Mine following the mining of four kimberlite pipes (Panda, Koala, Fox, and Misery) over a projected 15-year operational period. The plan details reclamation approaches for open pits, underground facilities, tailings containment areas, waste rock storage, water management structures, quarries, roads, and other infrastructure, emphasizing stable landforms, water resource protection, and facilitation of natural recovery through progressive reclamation, revegetation research, and post-closure monitoring.
Closure & Reclamation Closure Plan Revegetation
Heat Smut on Slender Wheat Grass, Table 2: Hosts and Localities of Ustilago bullata Specimens (Multiple parties, 2000)
~2000Dataset
Approximate date — inferred from filename
A scientific table documenting host plant species and geographic localities for specimens of Ustilago bullata (heat smut fungus) preserved in the National Mycological Herbarium, covering multiple grass species across Canadian provinces and territories outside the District of Mackenzie.
Closure & Reclamation Uncategorized / needs review
Alien and Invasive Native Vascular Plants Along the Norman Wells Pipeline, District of Mackenzie, Northwest Territories (Cody et al., 2000)
1 January 2000Report
This 2000 peer-reviewed study documents 34 alien vascular plant taxa and 13 invasive native taxa found along the Norman Wells to Zama pipeline (751 km in NWT), including 15 species new to the Continental Northwest Territories, despite mitigation efforts using certified native seed mixes during construction and revegetation (1983–1995).
Revegetation Closure & Reclamation Monitoring Habitat Assessment

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