Geochemistry

129 documents · Page 3 of 7

Documents

Sort

Waste Rock Storage Area Seepage and Waste Rock Survey Report, Ekati Diamond Mine (SRK Consulting, March 2003)
1 March 2003Report
This 2002 waste rock storage area seepage and waste rock survey report for Ekati Diamond Mine documents monitoring of seepage quality, waste rock geochemistry, and thermal conditions at storage areas including Panda/Koala, Misery, and the Coarse Kimberlite Reject Storage Area. The report fulfills Water Licence N7L2-1616 requirements and includes detailed investigations of low pH waters observed since 1999, with findings on sulphate concentrations, acid generation potential, and freeze-concentration effects in seepage.
Waste Rock Geochemistry Acid Rock Drainage
Beartooth Pipe Acid/Alkaline Rock Drainage (ARD) and Geochemical Characterization Plan (BHP Billiton, 2003)
1 January 2003Report
This Acid/Alkaline Rock Drainage and Geochemical Characterization Plan for the Beartooth Pipe at Ekati Diamond Mine describes predictive testing, operational monitoring, and waste rock management strategies to assess potential environmental impacts from mining waste rock storage. Geochemical testing indicates that biotite granite (>99% of waste rock) has low reactivity, while biotite schist and kimberlite require segregation and encapsulation strategies to prevent acid generation and control drainage chemistry.
Acid Rock Drainage Waste Rock Geochemistry Regulatory
Pigeon Pipe Acid/Alkaline Rock Drainage (ARD) and Geochemical Characterization Plan (SRK Consulting, January 2003)
1 January 2003Report
This document presents the Acid/Alkaline Rock Drainage (ARD) and Geochemical Characterization Plan for the Pigeon Pipe at the Ekati Diamond Mine, prepared by SRK Consulting for BHP Billiton Diamonds to meet Water License MV2001L2-0008 conditions. The plan describes geochemical testing results, waste rock management strategies, and monitoring protocols for host rocks (biotite granite, diabase, biotite schist) and kimberlite, incorporating adaptive management based on operational experience from the Panda and Misery pipes.
Acid Rock Drainage Waste Rock Geochemistry
Processed Kimberlite Tailings Reclamation Research Program, 2002 Annual Report, Ekati Diamond Mine (Harvey Martens & Associates, December 2002)
1 December 2002Report
BHP Billiton Diamonds Inc. conducted a comprehensive seven-year reclamation research program on processed kimberlite tailings at the Ekati Diamond Mine in the Northwest Territories, with this 2002 annual report documenting revegetation trials, soil amendment studies, native plant establishment methods, and trace element assessments to determine optimal long-term stabilization strategies for mine tailings.
Closure & Reclamation Revegetation Kimberlite Tailings
Establishment of a Vegetation Cover on Kimberlite Mine Tailings (University of Alberta, 2002)
~2002Report
Approximate date — inferred from filename
This Master's thesis investigates the establishment of vegetation cover on processed kimberlite mine tailings at the Ekati Diamond Mine in the Northwest Territories through greenhouse and field studies. The research evaluates structural and nutrient-providing amendments to overcome tailings limitations and facilitate permanent vegetation stabilization using native grass species.
Closure & Reclamation Revegetation Kimberlite Tailings Monitoring
Annual Water Licence Geotechnical Inspection (EBA Engineering, August 2002)
~2002Report
Approximate date — inferred from filename
EBA Engineering completed the annual water licence geotechnical inspection of five water-retaining structures at Ekati Diamond Mine between July 19–23, 2002, documenting observations on stability, water levels, ground temperatures, seepage, and settlement at Phase 1 Pond, Panda Diversion Dam, Long Lake Outlet Dam, Intermediate Dyke B, and King Pond Dam.
Regulatory Water Licence Waste Rock Geochemistry Kimberlite Tailings
Spring Waste Rock Storage Area Seepage Survey, Ekati Diamond Mine (SRK Consulting, June 2002)
1 August 2002Report
This report documents the results of the 2002 spring waste rock storage area seepage survey at Ekati Diamond Mine, conducted in June 2002 in accordance with Water Licence N7L2-1616 requirements. The survey monitored seepage quality from multiple waste rock and kimberlite storage areas, including chemical analysis of water samples for pH, conductivity, major ions, nutrients, and metals.
Waste Rock Water Quality Monitoring
MEND Manual, Volume 3 - Prediction (MEND, July 2002)
29 July 2002Report
MEND Manual Volume 3 on Prediction is a comprehensive reference document for Canadian mining industry practitioners on sampling, analysis, prediction, prevention, control, treatment and monitoring of acidic drainage from mines. The manual provides information on chemistry, engineering, economics, case studies and scientific data for mine operators, environmental staff, consulting engineers and governments.
Acid Rock Drainage Waste Rock Water Quality
Waste Rock Dam and Seepage Collection Dam As-Built Construction Report, Misery Site, Ekati Diamond Mine (EBA Engineering, July 2002)
1 July 2002Report
This as-built construction report documents the monitoring and completion of the Waste Rock Dam and Seepage Collection Dam at the Ekati Diamond Mine's Misery site from November 2001 to May 2002, detailing foundation preparation, material placement, liner system installation, thermosyphon construction, and quality assurance testing.
Waste Rock Geochemistry Monitoring Water Quality
Waste Rock and Ore Storage Management Plan Support Document, Addendum #1, Fox Pipe, Ekati Diamond Mine (BHP Billiton, June 2002)
1 June 2002Report
This addendum to the approved Waste Rock and Ore Storage Management Plan (February 2000) presents updated geological, geochemical, and characterization data for the Fox Pipe at Ekati Diamond Mine, along with refinements to waste rock management strategies based on site experience and adaptive management practices since 2000. The plan describes geochemical testing results, monitoring methods, and waste rock storage management strategies incorporating permafrost formation, encapsulation of reactive kimberlite, and toe berm construction to control runoff.
Waste Rock Geochemistry Acid Rock Drainage
MEND Reports Available, Catalogue of Acid Mine Drainage Research Reports (MEND, 2002)
22 May 2002Report
A comprehensive catalog of MEND (Mine Environment Neutral Drainage) program reports and resources available for purchase, covering research, prevention, control, and treatment methods for acid mine drainage from mining operations, with ordering information for the MEND Secretariat.
Acid Rock Drainage Waste Rock Geochemistry Water Quality
Processed Kimberlite Deposition Investigation, Ekati Diamond Mine (EBA Engineering, May 2002)
1 May 2002Report
EBA Engineering assessed the physical properties of processed kimberlite deposited in Cell B of the Long Lake Containment Facility at the Ekati Diamond Mine, conducting a field program in March 2001 that recovered samples and installed instrumentation to characterize three distinct zones of varying composition and consolidation state. The investigation found excess ice in the frozen middle layer (Zone B) resulting in higher void ratios than design assumptions, while unfrozen material below (Zone C) was consolidating as anticipated.
Waste Rock Kimberlite Tailings Monitoring Water Quality
Acid Rock Drainage Prevention & Control, Handout F (Mehling Environmental Management Inc., April 2002)
24 April 2002Presentation
This is a technical short course handout on acid rock drainage (ARD) prevention and control presented by Mehling Environmental Management Inc. to DIAND on April 24, 2002. The document outlines ARD causes, prediction methods, and various preventive and remedial mitigation strategies including waste rock blending, layering, alkaline addition, underwater disposal, and chemical treatment, with case studies and laboratory evaluation approaches.
Acid Rock Drainage Waste Rock Geochemistry Closure & Reclamation
Acid Rock Drainage Introduction and Prediction Theory, DIAND Technical Short Course Handout E (Mehling Environmental Management, April 2002)
24 April 2002Report
This DIAND technical short course handout from Mehling Environmental Management Inc. presents comprehensive theory and prediction techniques for acid rock drainage (ARD), covering ARD generation mechanisms, prediction methodologies (static and kinetic testing), field monitoring approaches, and mitigation strategies for mining and construction projects.
Acid Rock Drainage Waste Rock Geochemistry
Basic Geotechnical Engineering Applied to Mine Waste, Technical Short Course (BGC Engineering Inc., April 2002)
22 April 2002Report
A comprehensive technical short course delivered by BGC Engineering Inc. on geotechnical engineering applied to mine waste, covering soil mechanics, permafrost terrain, tailings dam design, construction methods, monitoring instrumentation, and case histories of dam failures including Omai (1995), Los Frailes (1997), and permafrost-related failures.
Waste Rock Closure & Reclamation Geochemistry Kimberlite Tailings
Technical Short Course Final Timetable (DIAND, April 2002)
22 April 2002Report
A five-day technical short course organized by DIAND from April 22–26, 2002, covering geotechnical engineering, permafrost design, acid rock drainage prediction and control, and risk assessment in cold environments, delivered by experts from BGC Engineering, Mehling Environmental Management, and Oboni Associates.
Acid Rock Drainage Waste Rock Geochemistry
Notice of Training Session, Environmental Review of Mines Seminar (Mehling Environmental Management, March 2002)
14 March 2002Letter
Notice of a 5-day training session on environmental review of mines to be held April 22–26, 2002 in Yellowknife, covering geochemistry, water quality, tailings management, and risk assessment methodology for northern mining projects.
Acid Rock Drainage Geochemistry Waste Rock
Public Hearing Interventions, BHP Billiton Class A Water Licence Application MV2001L2-0008, Sable, Pigeon & Beartooth Kimberlite Pipes (IEMA, March 2002)
2002Regulatory Filing
Mackenzie Valley Land and Water Board (MVLWB) March 18 2002 binder on the BHP Billiton Diamonds Inc. Class A Water Licence Application for the Sable, Pigeon and Beartooth kimberlite pipes. Distribution List includes Jolene Coyina (Dogrib Treaty 11 Council), Lutsel K'e Dene Band Environment Department, Dave Milburn (INAC Water Resources Division), and Ms. Melody McLeod (MVLWB Chairperson). Includes INAC March 13 2002 intervention, Ultimate Closure Liability cost breakdown for Panda / Misery / Koala / Fox / Sable / Pigeon / Beartooth Open Pits (Land, Water, total columns in CAD) — example Ultimate New Proposal totals: Sable $224,604, Pigeon $181,936, Beartooth $135,728.
Regulatory Water Licence Development Plans
Soil Covers in Cold Climates (Mehling, March 2002)
~2002Presentation
Approximate date — inferred from filename
Technical presentation on soil cover design strategies for mine waste in cold climates, including barrier covers, store-and-release systems, and frozen covers that utilize below-freezing temperatures to restrict acid rock drainage generation.
Waste Rock Acid Rock Drainage Closure & Reclamation
Soil Covers for Mine Waste Management, Handout G (Mehling Environmental Management, March 2002)
~2002Presentation
Approximate date — inferred from filename
A presentation handout by Mehling Environmental Management Inc. on soil cover design and application for mine waste management, covering conceptual modeling, design steps, field testing, and construction methodologies to prevent acid rock drainage through water and oxygen limiting covers.
Waste Rock Acid Rock Drainage Closure & Reclamation Monitoring

Tags

Documents