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Review of Cover Design Technologies for the Reclamation of Tailings (G. Ward Wilson, University of Saskatchewan, 1999)
~1999Report
Approximate date — inferred from filename
This technical paper reviews cover design technologies for tailings reclamation across four distinct climate regimes (arid, temperate, high rainfall, and tropical monsoon) using numerical soil-atmosphere modeling. The analysis demonstrates that no single cover system design is universally applicable and that climate parameters, soil properties, and site-specific conditions must be integrated to achieve effective tailings containment and oxidation prevention.
Closure & Reclamation Waste Rock Acid Rock Drainage Kimberlite Tailings
Critical Technical Review of BHP Tailings Characterization Study & Wastewater and Tailings Management Plan, Ekati Diamond Mine (Chris Mills, September 1998)
1 September 1998Report
A critical technical review by Chris Mills of BHP Diamonds Inc.'s tailings characterization study and wastewater/tailings management plan for the Ekati Diamond Mine, prepared for IEMA in September 1998. The review examines changes to mill design producing finer tailings (nominally minus 500 µm) and assesses associated impacts on water quality, tailings behaviour, and Long Lake impoundment management.
Waste Rock Kimberlite Tailings Wastewater
Waste Rock & Ore Storage Management Plan, Ekati Diamond Mine, Revision 2 (BHP Billiton, July 1998)
31 July 1998Report
BHP Diamonds Inc. submitted a Waste Rock and Ore Storage Management Plan for the Ekati Diamond Mine detailing geochemical characterization, testing methodologies, water quality predictions, and mitigation strategies for managing drainage from waste rock and ore storage facilities at four kimberlite pipes (Panda, Koala, Misery, and Fox) in the Northwest Territories.
Waste Rock Acid Rock Drainage Geochemistry
Histopathological, Endocrine & Immunological Assessment of Rainbow Trout Exposed to Kimberlite Ore Tailings (GLOBALTOX, July 1998)
6 July 1998Report
This multi-part final report documents a dose-response study of rainbow trout exposed to kimberlite ore tailings at 50 and 500 mg/L concentrations over 15 and 30 days, assessing histopathological changes in gills, liver and kidney, serum hormone levels (cortisol, estradiol, testosterone), and immunological parameters including phagocytic function and lymphoproliferation. The studies collectively demonstrate that kimberlite exposure caused adverse effects at all tested concentrations, with LOEC/LOAEC estimated below 50 mg/L, and immunomodulatory effects dependent on dose and exposure duration.
Aquatics Kimberlite Tailings Waste Rock
BHP Tailings Characterization Study, Panda & Fox Kimberlite Tailings, Ekati Diamond Mine (EBA Engineering, June 1998)
1 June 1998Report
This tailings characterization study documents the physical and chemical properties of Panda and Fox kimberlite tailings from the Ekati Diamond Mine, including effects of polymer treatment, thickening processes, and thermal behaviour to support tailings disposal facility design and operations at Long Lake.
Kimberlite Tailings Waste Rock Geochemistry Development Plans
Wastewater and Tailings Management Plan, Ekati Diamond Mine (EBA Engineering, June 1998)
1 June 1998Report
This is the Wastewater and Tailings Management Plan for the Ekati Diamond Mine, detailing the handling and disposal of all mine-related wastewater and 133 million tonnes of tailings over 25 years of operation. The plan describes tailings discharge into Long Lake Containment Area cells, water treatment processes, pit dewatering, sewage treatment, and monitoring protocols required under Northwest Territories Water License N7L2-1616.
Wastewater Kimberlite Tailings Waste Rock
Wastewater and Tailings Management Plan, Ekati Diamond Mine (EBA Engineering, June 1998)
1 June 1998Report
This wastewater and tailings management plan for the Ekati Diamond Mine details the handling of 133 million tonnes of mine tailings over 25 years of operation, including tailings disposal in Long Lake containment area cells, water treatment and discharge protocols, pit water management, and camp sewage systems. The plan addresses tailings characterization, consolidation behavior, seasonal deposition patterns, and monitoring requirements to ensure compliance with water license conditions.
Wastewater Waste Rock Kimberlite Tailings
Wastewater and Tailings Management Plan, Ekati Diamond Mine (EBA Engineering, June 1998)
1 June 1998Report
This wastewater and tailings management plan for the Ekati Diamond Mine describes comprehensive strategies for handling 133 million tonnes of tailings over 25 years of operation, including tailings containment in Long Lake cells, water treatment, pit dewatering, camp sewage management, and monitoring protocols to ensure compliance with NWT water licence requirements.
Wastewater Waste Rock Kimberlite Tailings
Technical Review of Acid/Alkaline Rock Drainage (ARD) and Geochemical Characterization Program and Waste Rock and Ore Storage Management Plan, Ekati Diamond Mine (Chris Mills, March 1998)
8 March 1998Report
Chris Mills provides a technical review of BHP Diamonds Inc.'s Acid/Alkaline Rock Drainage (ARD) and Geochemical Characterization Program and Waste Rock and Ore Storage Management Plan for the Ekati Diamond Mine. The review identifies critical uncertainties regarding the realizable neutralizing potential of kimberlitic materials proposed for blending with potentially acid-generating waste rock, particularly Misery Schist and Fox Diabase, and recommends additional quantitative mineralogical studies to resolve these uncertainties before final waste rock dump design.
Acid Rock Drainage Waste Rock Geochemistry Monitoring
Waste Rock Management Plans, Fox & Misery Pipes, Ekati Diamond Mine (BHP Billiton, 1998 to 2003)
1998–2003Report
Waste Rock Management Plans binder for the Ekati Diamond Mine (BHP Billiton Diamonds Inc.) covering 2000–2006. Includes Kevin Morin (Day, 2003) analysis of acid rock drainage (ARD) prediction problems at Ekati, Sexsmith / Milnes ARD reviews, Agency (Independent Environmental Monitoring Agency) reviews of Waste Rock and Ore Storage Management plans (Red Pederson, Melody McLeod, Gordon Wray correspondence), MVLWB correspondence on Operating Environmental Management Plan support documents, BHP Billiton diamond drill logs (FGT-07 — biotite granite, plagioclase, K-alteration), EBA Engineering Consultants 1997 tailings size-distribution data (Gaudin-Schuhmann), and proposed Misery, Panda/Koala, North/South/East waste rock dump configurations on Lac de Gras.
Acid Rock Drainage Waste Rock Geochemistry
Acid Rock Drainage and Geochemical Characterization Program, Ekati Diamond Mine (Dames & Moore, December 1997)
31 December 1997Report
This final geochemical characterization report for BHP Diamonds' proposed diamond mine in the Northwest Territories evaluates the acid/alkaline rock drainage potential of waste rock, ore (kimberlite), and tailings through static and kinetic testing methods. The study predicts water quality from mine facilities including waste rock dumps, pits, underground workings, ore stockpiles, and tailings, identifying the Misery Schist Waste Rock Dump as a potential source of acidic drainage with elevated metal concentrations, while most other facilities are expected to remain benign.
Acid Rock Drainage Waste Rock Geochemistry
Modifications to Repair the Phase 1 Tailings Containment Area (BHP Billiton, October 1997)
6 October 1997Letter
BHP Diamonds Inc. requests modification to water licence N7L2-1616 to repair and reline the Phase 1 tailings containment area due to liner damage discovered during inspection. The remediation work includes dewatering the unlined portion, removing the pumphouse, installing a new HDPE liner, and infilling with till material and waste rock.
Regulatory Water Licence Waste Rock
Kimberlite Studies Collection (BHP Billiton, 1997 to 2004)
1997–2004Report
Kimberlite Studies binder for the Ekati Diamond Mine (1998-2004). Includes Ian Goodwin (BHPB) distribution of the 2003 Wildlife Effects Monitoring Program (WEMP) Draft Report and "Aquatic Toxicity Associated with Diamond Ore (Kimberlite) Mining" report (Appendices 2-4), Red Pederson (Agency) comment letter on toxicity identification evaluation and health/body-condition assessment, BHP Terms of Reference for a Kimberlite Toxicity Study under Water Licence N7L2-1616 (January 6 1998, Steve Harbicht recipient), ETL Enviro Test Chemspec Analytical Ltd. laboratory data, Pascoe / Evans / Woodworth (1986) heavy-metal-toxicity / water-hardness references, and Kimberlite Elemental Whole Rock Analysis tables for Misery, Panda, Fox, Leslie, Koala pits.
Kimberlite Tailings Waste Rock Aquatics
Acid Rock Drainage (ARD) Case Study, Snip Mine, 1990 to 1999 (BHP Billiton, 1990 to 1999)
11 July 1996Report
This case study documents Snip Mine's (1990–1999) tailings and underground workings closure strategy, focusing on mitigation of acid rock drainage and metal leaching through impoundment management, bulkheading, and long-term monitoring, with lessons applied to other British Columbia mining operations.
Closure & Reclamation Waste Rock Acid Rock Drainage Post-Closure Monitoring
Proposed Tailings Facility, Submission to the Water Technical Session, BHP Diamond Mine Environmental Assessment Panel (GNWT, February 1996)
1 February 1996Regulatory Filing
The Government of Northwest Territories reviews the NWT Diamonds Project Environmental Impact Statement, concluding that frozen core dams are acceptable for the mine site if proper freeboard and construction controls are maintained, but expressing concern that the proposed large tailings facility in Long Lake presents unresolved challenges for long-term erosion control and recommends concentrating tailings in upper watershed areas instead.
Waste Rock Kimberlite Tailings Closure & Reclamation
Proposed Tailings Facility, Submission to Water Technical Session (GNWT, February 1996)
1 February 1996Regulatory Filing
The Northwest Territories Departments of Renewable Resources and Safety and Public Services submitted a technical review of the proposed NWT Diamonds Project (Ekati) tailings facility design, concluding that frozen core dams are acceptable for the site but recommending modifications to address freeboard adequacy and proposing concentration of tailings in upper watershed areas to reduce long-term erosion risks.
Waste Rock Kimberlite Tailings Closure & Reclamation
Assessing the Potential for Significant Metal Leaching or Acid Rock Drainage (ML/ARD) (BHP Billiton, 1996)
~1996–2001Report
This technical guidance document provides comprehensive procedures and interpretation methods for assessing the potential for acid rock drainage (ARD) and metal leaching (ML) from mining materials, including material characterization, static and kinetic testing approaches, and criteria for predicting ARD generation.
Acid Rock Drainage Waste Rock Geochemistry Kimberlite Tailings
Assessing Mine Waste Rock Drainage Risk, Acid Rock Drainage Geochemistry Guidance (BHP Billiton, 1996)
~1996–2001Report
This document provides technical guidance on assessing mine waste drainage risk, covering the complex factors influencing water quality at mining operations and presenting an Eh-pH diagram for the iron-oxygen-water system to illustrate geochemical stability relationships.
Waste Rock Acid Rock Drainage Geochemistry Kimberlite Tailings
Samatosum Mine Acid Rock Drainage Case Study (BHP Billiton, 1996)
~1996–2001Report
A case study examining drainage treatment and mitigation strategies at the Samatosum mine, detailing measures to limit leaching from waste rock dumps and tailings, including costs and long-term monitoring requirements for managing acid rock drainage and sludge disposal.
Waste Rock Acid Rock Drainage Geochemistry Monitoring Closure & Reclamation
Tailings Management Plan, NWT Diamonds Project (EBA Engineering, December 1995)
15 December 1995Report
This tailings management plan for the BHP Diamonds Project describes the design and operation of a 133-million-tonne tailings disposal system using Long Lake basin in the Northwest Territories, including perimeter dams, intermediate dykes, water management strategies, and long-term reclamation to restore the site to a wetland environment.
Waste Rock Kimberlite Tailings Closure & Reclamation

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84 documents · Page 4 of 5