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BHP Diamonds Inc. newsletter for June 2001 reporting on the merger of BHP and Billiton, operational achievements including 90-day lost time accident milestone, recreation facility expansions, university-supported environmental research projects, security improvements in the Process Plant, and various employee recognition and development programs at the Ekati Diamond Mine.
Komex International prepared a reclamation liability estimate for the Ekati Diamond Mine comparing current liability costs (approximately $50.8 million) with ultimate closure costs (approximately $136.4 million) across multiple mine components including open pits, tailings cells, waste rock piles, and camp facilities, using the RECLAIM model and incorporating site-specific data and professional judgment.
This revised State of Knowledge Report for the West Kitikmeot/Slave Study Society, updated to December 2000, provides a comprehensive synthesis of environmental and socio-economic knowledge about the West Kitikmeot and Slave geological province region, covering physical/climatic aspects, ecosystems, human elements, environmental stresses, and information needs to support sustainable development in this mineral-rich area of the Northwest Territories and Nunavut.
Email transmittal and review paper "Oxygen in Lakes North of the Tree Line — A Review" forwarded by Zabey Nevitt (Independent Environmental Monitoring Agency, monitor@yk.com) to Robin Staples (May 23 / 31 2001), originally from Camille Douglas (BHP) referencing work by H.E. Welch. Discusses winter respiration rates of Canadian Arctic lakes (0.08-0.45 g O2/m²/d), winter oxygen depletion, P&N Lake oxygen isopleths (Welch and Legault 1986), and the ~2-3 mg/L dissolved-oxygen threshold below which most Arctic fish die. References Welch, Dillon, Sreedharan, and Saqvaqjuac NWT studies.
BHP presentation on the 2000 Enhanced Monitoring and Confirmation Plan for the Panda Waste Rock Storage Area at Ekati Diamond Mine, detailing waste rock characterization, seepage chemistry assessment, and hydrological investigations to address regulatory concerns about low pH seepage from mining operations.
This geochemical review by the Minesite Drainage Assessment Group evaluates BHP and SRK's 2000 seepage survey data from the Ekati Diamond Mine, finding that acid rock drainage (ARD) is more extensive and severe than reported—affecting approximately 26-27% of seep analyses rather than only one documented seep—and is migrating through the shallow groundwater system toward Beartooth and Bearclaw Lakes. The report identifies significant gaps in the SRK classification system, contradictions in interpretations, data gaps, and equipment failures, recommending comprehensive individual seep characterization, groundwater monitoring, water treatment, and retention of qualified technical specialists to manage the serious and worsening water-quality problems.
BHP Diamonds Inc. newsletter for April 2001 announcing the retail launch of EKATI brand diamonds, providing updates on mine operations including safety achievements, environmental monitoring workshops, regulatory approvals for new kimberlite pipes (Sable, Pigeon, Beartooth), operating excellence initiatives, and winter road resupply operations delivering approximately 88,000 tons of freight.
BHP Diamonds Inc. April 2001 newsletter announcing the retail launch of EKATI brand diamonds, reporting on mine operations including safety achievements and winter resupply efforts, and detailing environmental monitoring programs and community engagement activities at the Ekati Diamond Mine in the Northwest Territories.
BHP Diamonds Inc. newsletter for April 2001 covering EKATI™ Diamond Mine operations, including the launch of the EKATI™ brand retail diamonds, safety achievements, environmental workshop results, regulatory approvals for new kimberlite pipes (Sable, Pigeon, Beartooth), winter road resupply operations, and various community and corporate initiatives.
BHP Diamonds Inc. newsletter for April 2001 reporting on Ekati Diamond Mine operations, including the launch of the EKATI brand retail diamond line, safety achievements, environmental monitoring workshops, regulatory approvals for additional kimberlite pipes, winter resupply logistics, and various employee and community initiatives.
BHP Diamonds Inc. submitted its 2000 Environmental Agreement and Water Licence Annual Report for the Ekati Diamond Mine, documenting the second full year of mine production and compliance with regulatory requirements. The report covers mining operations at four kimberlite pits, environmental monitoring programs, reclamation activities, and continuous improvements including management of processed kimberlite, sewage discharge relocation, and mitigation of low dissolved oxygen in Kodiak Lake.
This is the final report of the West Kitikmeot Slave Study Society for 2000-2001, documenting five years of research on environmental and socioeconomic conditions in the Slave Geological Province. The report summarizes 21 approved research projects on wildlife, habitat, physical environment, and socioeconomic issues, with approximately $10 million in funding from governments, mining companies, and aboriginal and environmental organizations.
This document comprises an organizational overview of the Independent Environmental Monitoring Agency (IEMA) for the Ekati Diamond Mine, including its governance structure, mandate, and regulatory framework, followed by the Agency's detailed technical comments on BHP's Environmental Assessment Report for the proposed Sable, Pigeon, and Beartooth kimberlite pipe extensions submitted to the Mackenzie Valley Environmental Impact Review Board in September 2000. The Agency identifies significant information gaps and recommends additional geochemical testing, monitoring enhancements, and further assessment of alternatives such as underground mining before project approval.
This is the 2000 archaeological investigation report for the EKATI Diamond Mine in the Northwest Territories, documenting the discovery of 12 new archaeological sites bringing the total to 162 recorded sites, along with systematic data recovery and site mitigation work conducted under Northwest Territories Archaeologists Permit 2000-893.
BHP Diamonds Inc.'s Environmental Annual Report 2000 is a plain English summary of the company's environmental monitoring programs at the Ekati Diamond Mine in the Northwest Territories, documenting compliance with its Environmental Agreement with Canadian and NWT governments and reporting on air quality, water, wildlife, operations, and progressive reclamation efforts.
BHP Diamonds Inc.'s Environmental Agreement Annual Report for 2000 documents the company's environmental monitoring programs and operational activities at the Ekati Diamond Mine in the Northwest Territories, covering air quality, water quality, waste management, wildlife impacts, reclamation efforts, and archaeological investigations conducted during the year.
BHP's Environmental Agreement Annual Report 2000 provides a comprehensive summary of environmental monitoring and mining operations at the Ekati Diamond Mine in the Northwest Territories for the year 2000. The report documents air and water quality monitoring, wildlife effects assessments, waste management practices, reclamation efforts, and integration of traditional knowledge from Aboriginal groups in environmental management at the mine.
This 2000 seepage and waste rock survey report documents BHP's expanded monitoring program investigating unexpectedly low pH seepage from the Panda Waste Rock Storage Area at Ekati Diamond Mine, examining potential causes including naturally acidic precipitation, organic decomposition, waste rock breakdown, and sulphide mineral oxidation. The study found three types of seeps with varying pH levels and identified that most seeps pose low toxicity risk to aquatic organisms, though one strongly acidic seep may be affected by sulphide mineral oxidation in carbonate-depleted kimberlite.
This 2000 seepage and waste rock survey report documents BHP Diamonds' investigation into acidic seepage detected from the Panda waste rock storage area at Ekati Diamond Mine, fulfilling requirements of Water Licence N7L2-1616. The expanded monitoring program tested multiple hypotheses for low pH seepage including precipitation acidity, organic decomposition, sulphide mineral oxidation, and ammonia oxidation, with results indicating that low pH is primarily due to natural acidic precipitation and plant decomposition, with one seep showing evidence of sulphide mineral oxidation but overall low toxicity risk to aquatic organisms.
This 2000 technical monitoring report documents the third year of the Panda Diversion Channel (PDC) monitoring program, which tracks the effectiveness of fish habitat compensation efforts at the Ekati Diamond Mine. The report presents findings on channel hydrology, spring fish migration patterns, larval fish development, habitat assessments, channel stability, and biological communities, demonstrating that Arctic grayling successfully use the constructed channel for spawning and migration between North Panda and Kodiak lakes.