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472 documents · Page 11 of 24

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Permafrost Engineering Considerations in Mining, Handout D (BGC Engineering, March 2002)
~2002Presentation
Approximate date — inferred from filename
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.
Development Plans Waste Rock Closure & Reclamation Monitoring
Applying Risk Assessments to Acid Rock Drainage (ARD), Handout K (Mehling Environmental Management, March 2002)
~2002Presentation
Approximate date — inferred from filename
A handout presenting a framework for applying risk assessments to acid rock drainage (ARD) at mining operations, including hazard identification, probability and consequence evaluation, and case studies of mitigation measures for collection ditches, treatment systems, and waste rock management.
Acid Rock Drainage Waste Rock Geochemistry Monitoring
Ground Ice Distribution, Classification & Properties (BGC Engineering, March 2002)
~2002Presentation
Approximate date — inferred from filename
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.
Closure & Reclamation Development Plans Waste Rock Wastewater
Investigation of the Fate of Wastewater Phosphorus within the Processed Kimberlite Containment Area, Ekati Diamond Mine (University of Alberta, 2002)
19 February 2002Report
This Master of Science thesis by Karen Patricia Graham investigates the adsorption of phosphorus from wastewater effluent onto kimberlite tailings in BHP's Ekati Diamond Mine's processed kimberlite containment area through controlled laboratory isotherm studies. The research determines that approximately 0.5 kg of dried kimberlite per litre of wastewater effluent is needed at 18°C to reduce phosphorus concentration from 10 mg/L to 0.1 mg/L, with results showing that coagulant and flocculant addition does not affect phosphorus adsorption, and pH and temperature changes do not cause desorption.
Wastewater Kimberlite Tailings Waste Rock Monitoring
Incoming & Outgoing Correspondence re Environmental Agreement Five Year Review & IEMA Board Matters (IEMA, 1997 to 2002)
7 February 2002Letter
BHP Billiton initiates the five-year review of the Environmental Agreement (dated January 6, 1997) as required by Article 15.2(b), proposing a formal review process with meetings scheduled for March 20, 2002, and requesting that parties submit suggested amendments by February 22, 2002. The company also responds to recommendations from the Independent Environmental Monitoring Agency's 2000-2001 Annual Report, addressing issues including Aboriginal knowledge integration, aquatic effects monitoring, waste rock geochemistry, wildlife management, and reclamation criteria.
Environmental Agreement Correspondence Traditional Knowledge Waste Rock
Waste Rock Storage Area Seepage and Waste Rock Survey Report, Ekati Diamond Mine (SRK Consulting, 2001)
1 February 2002Report
This 2001 waste rock storage area seepage and waste rock survey report documents monitoring results from the Ekati Diamond Mine in compliance with Water Licence N7L2-1616, evaluating seepage quality, waste rock geochemistry, thermal conditions, and groundwater characteristics at the Panda/Koala, Misery, and Coarse Kimberlite Reject storage areas.
Waste Rock Acid Rock Drainage Geochemistry
Waste Rock Storage Area Seepage and Waste Rock Survey Report, Ekati Diamond Mine (SRK Consulting, February 2002)
1 February 2002Report
This 2001 waste rock storage area seepage and waste rock survey report documents monitoring results from the Ekati Diamond Mine, including characterization of seepage quality, geochemical testing of waste rock from Panda, Koala, and Misery pits, thermal monitoring, and groundwater investigation conducted in compliance with Water Licence N7L2-1616. The report presents findings on acid-generating potential, seepage water types, and environmental impacts from multiple waste rock and kimberlite storage areas.
Waste Rock Acid Rock Drainage Geochemistry
Responses to Information Requests for Sable, Pigeon and Beartooth Kimberlite Pipes (BHP Billiton, February 2002)
1 February 2002Regulatory Filing
BHP Billiton's formal responses to multiple regulatory information requests concerning the proposed development of three kimberlite pipes (Sable, Pigeon, and Beartooth) at the Ekati Diamond Mine, addressing topics including road design and wildlife impacts, water quality monitoring, waste rock and hydrocarbon management, surface water diversion engineering, and aquatic effects monitoring protocols.
Development Plans Regulatory Water Quality
Wastewater & Processed Kimberlite Management Plan, Appendix 8.2-1, Ekati Diamond Mine (BHP Billiton, January 2002)
1 January 2002Report
This preliminary Wastewater and Processed Kimberlite Management Plan for the Ekati Diamond Mine describes comprehensive waste water management strategies and processed kimberlite disposal methods for the mine's 17-year operational life, including details on lake dewatering, pit water management, the Long Lake Containment Facility, and remote site operations at Misery and Sable.
Wastewater Kimberlite Tailings Water Quality
Legislation and Guidelines (Miscellaneous) Reference Binder 1 (Canadian Institute of Resources Law, 2002)
2002Report
Legislation & Guidelines (Miscellaneous) Binder 1 for the Independent Environmental Monitoring Agency — includes Tab 1 Mackenzie Valley Resource Management Act (MVRMA), DIAND distributions, US EPA April 1999 Section 1030 (Data Quality) of Standard Methods for the Examination of Water and Wastewater (20th Edition), Proposed Canadian Water Quality Guidelines poster, Canadian Institute of Resources Law materials, MVEIRB distributions (December 1998), Sahtu Land and Water Board fact sheet (Fort Good Hope NT, 867-598-2413), Gwich'in Land and Water Board fact sheet (Inuvik NT, 867-777-4954), and Important Writing Guidelines (planning your report, outline / paragraph headings / one-idea-per-paragraph rule).
Regulatory Environmental Agreement Water Quality Development Plans
Appendix 8.2 & 10.1 Support Documents, Ekati Diamond Mine (BHP Billiton, 2001 to 2002)
1 January 2002Report
This preliminary wastewater and processed kimberlite management plan for the Ekati Diamond Mine describes treatment and disposal strategies for all wastewater sources including lake dewatering, process plant drainage, pit water, and sewage, with detailed specifications for the Long Lake Containment Facility and separate management plans for Misery and Sable sites. The plan addresses water quality criteria, retention times, discharge volumes, and monitoring requirements over the 17-year mine life through 2014.
Kimberlite Tailings Wastewater Water Quality Monitoring
Mine Site Reclamation Policy for the Northwest Territories (DIAND, 2002)
~2002Report
Approximate date — inferred from filename
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.
Closure & Reclamation Closure Plan Regulatory Water Quality
Sable, Pigeon and Beartooth Water Licence MV2001L2-0008 Regulatory Case File, Binder 4 (BHP Billiton, 2002 to 2008)
2002–2008Report
Sable, Pigeon and Beartooth (SPB) Binder 4 for the Ekati Diamond Mine BHP Billiton Diamonds Inc. (2008). Includes BHPB amalgamation of SPB Licence with main licence proposal (Eric Denholm, Laura Tyler, Ricus Grimbeek BHPB), Bruce Hanna (DFO), Violet Camsell-Blondin and Ryan Fequet (WLWB) correspondence on the SPB renewal process and notice of receipt of submissions. Geochemistry: biotite schist's failure to generate acidic leachate within 43 weeks not proving long-term drainage chemistry; Beartooth and Pigeon kimberlite Net Potential (NP) determinations based on Sobek methodology incompatible with kimberlite matrix; Beartooth designated Potentially Acid Generating (PAG), Pigeon not PAG (no segregation required). IEMA submissions and waste-rock-storage-area runoff water-quality contingencies.
Regulatory Water Licence Waste Rock
Sable, Pigeon and Beartooth Water Licence Application, Information Requests and Supporting Documents (MVLWB, January 2002)
2002Report
Mackenzie Valley Land and Water Board (MVLWB) January 18 2002 binder on BHP Billiton Diamonds Inc. Class A Water Licence Application for development of the Sable, Pigeon and Beartooth (SPB) kimberlite pipes. Board's scope-of-review (1999 project description Rev 3, Environmental Assessment Report), regulatory question forms (4.18 ore characteristics and mill processes if tailings are recovered as backfill, 4.19 tailings recovery details, retaining-structure dimensions/materials, drainage-basin descriptions, tailings-area total capacity by water balance and stage-volume calculations), and Cell B/C Processed Kimberlite Containment Area site plans (drawings 11580V65A/V66A).
Regulatory Water Licence Development Plans
Tailings Management File, Binder 1, Ekati Diamond Mine (Multiple parties, 2002)
2002Report
Tailings Management Binder 1 (2002) for the Ekati Diamond Mine (BHP Billiton). Correspondence between Ian Goodwin (BHPB), John Witteman (BHP), Derek Chubb (BHPB), Darnell McCurdy (DIAND), Bill Ross (IEMA / Agency), Melody McLeod (MVLWB). Includes the Agency letter on Misery Land Treatment — water-retention times before reaching Cujo Lake, meteorology / precipitation variability impacts, road-side ponding control, contingency plans for treatment-process failure, and ecological effects on valued ecosystem relationships. References Price (1996) Mine Rock and Resource Characterization Guidelines and Mills & Jambor 1995 AQUAMIN (Assessment of the Aquatic Effects of Mining in Canada Working Group) report.
Waste Rock Kimberlite Tailings Regulatory
Pigeon Pipe Preliminary Waste Rock Storage Management Plan, Ekati Diamond Mine (SRK Consulting, January 2002)
1 January 2002Report
This preliminary waste rock storage management plan for BHP Billiton's Pigeon Pipe kimberlite mining development describes geochemical testing, thermal and hydrological modeling, and adaptive management strategies to minimize environmental impacts from waste rock disposal, incorporating operational experience from existing Ekati waste rock storage areas.
Waste Rock Geochemistry Acid Rock Drainage
Beartooth Pipe Preliminary Waste Rock Storage Management Plan (SRK Consulting, January 2002)
1 January 2002Report
This preliminary waste rock storage management plan for BHP Billiton's Beartooth Pipe development describes geochemical testing, site characterization, and management strategies for waste rock disposal in the Panda/Koala waste rock storage area. The document concludes that approximately 99% of waste rock (biotite granite) has low reactivity, while small components of biotite schist are potentially acid-generating and will be segregated and encapsulated with non-reactive granite to ensure freezing conditions.
Waste Rock Geochemistry Acid Rock Drainage
Sable Pipe Preliminary Waste Rock Storage Management Plan (BHP Billiton, January 2002)
1 January 2002Report
This preliminary waste rock storage management plan for the Sable Pipe at Ekati Diamond Mine addresses geochemical characterization, testing methods, and operational management strategies for granite and kimberlite waste rock disposal. The plan incorporates adaptive management based on Panda Waste Rock Storage Area experience, including permafrost maintenance, toe berm construction, and water quality monitoring to minimize environmental impacts.
Waste Rock Geochemistry Acid Rock Drainage
Environmental Agreement Annual Report 2001, Ekati Diamond Mine (BHP Billiton, December 2001)
31 December 2001Report
BHP Billiton's 2001 Environmental Agreement Annual Report documents the company's mining operations, environmental monitoring programs, and reclamation efforts at the Ekati Diamond Mine in the Northwest Territories. The report covers air and water quality monitoring, wildlife effects assessments, fish habitat management, archaeological investigations, and discusses key environmental challenges such as acid rock drainage mitigation and caribou migration protection.
Environmental Agreement Acid Rock Drainage Waste Rock
Processed Kimberlite Tailings Vegetation Research 2001 Report (BHP Billiton, December 2001)
23 December 2001Report
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.
Closure & Reclamation Revegetation Kimberlite Tailings Monitoring

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472 documents · Page 11 of 24