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174 documents · Page 6 of 9

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Misery Site Surplus Water Atomization Project (SWAP), Type B Water Licence MV2002L2-0003 Case File, Ekati Diamond Mine (BHP Billiton, 2002 to 2003)
2002–2003Report
Misery Surplus Water Atomization Project (SWAP) binder for the Ekati Diamond Mine (2002-2003). Correspondence between Ian Goodwin (BHPB), Latisha Heilman (MVLWB), Sean Kollee (IEMA / Agency), Jane Howe (BHPB), and Environment Canada (Yellowknife, June 3 2002). Documents the June 2001 revised Wastewater and Processed Kimberlite Management Plan identifying the Misery site for surplus-water atomization, Dr. Dennis Trotter's (AMEC) review of the Misery Site document on public registry, and Misery Atomization Information Request / Reasons for Decision / Refusal Letter from the MVLWB.
Wastewater Water Licence Monitoring
Mining Industry Questionnaire for Water Licence Application, Beartooth, Pigeon & Sable Pits, Ekati Diamond Mine (BHP Billiton, August 2001)
30 August 2001Regulatory Filing
BHP Diamonds Inc. submitted a Mining Industry Questionnaire for Water Licence Applications to the Mackenzie Valley Land and Water Board in August 2001, providing supplemental information in support of their application for water licensing of the proposed Beartooth, Pigeon, and Sable kimberlite pipe developments at the Ekati Diamond Mine. The questionnaire details mine operations, geology, water usage, dewatering plans, tailings management, and environmental monitoring for the three new pit developments, which would extend the mine life by approximately three years.
Regulatory Water Licence Development Plans
Proposed Development of Sable, Pigeon and Beartooth Kimberlite Pipes, Ekati Diamond Mine, Land Use Permit and Water Licence Supporting Document (BHP Billiton, August 2001)
1 August 2001Regulatory Filing
BHP Diamonds Inc. submitted this supporting document to the Mackenzie Valley Land and Water Board for regulatory permits to develop three additional kimberlite pipes (Sable, Pigeon, and Beartooth) at the Ekati Diamond Mine in the Northwest Territories. The document describes the proposed open pit mining methods, waste rock and water management strategies, infrastructure requirements, and abandonment/restoration plans for each pipe, building upon the existing regulatory framework and environmental agreements already in place for the mine.
Development Plans Regulatory Water Licence Fish Habitat
Dissolved Solids Toxicity Reference Papers (McCulloch, Goodfellow & Black, August 2001)
2001Letter
Dissolved Solids Toxicity reference binder transmitted via fax by Dennis Trotter (Mackenzie Valley Land and Water Board) to Karl Lauten. Includes McCulloch, Goodfellow & Black (1993) "Characterization, Identification and Confirmation of Total Dissolved Solids as Effluent Toxicants" and J.B. LeBlond, L.K. Duffy (2001) "The Science of the Total Environment" study on Fort Knox tailings pond samples using Microtox and algal bioassays, with Red Dog mine station 140 sample precision data and Camo AS Trondheim chemometric modelling references. Topics: TDS toxicity, EC20, Microtox toxicity test system.
Water Quality Effluent Quality Criteria Wastewater
Huckleberry Mines Ltd. Water Quality Monitoring Data, Multiple Sampling Locations (BHP Billiton, 1997 to 2001)
17 July 2001Dataset
Water quality monitoring data from Huckleberry Mines Ltd. (Ekati Diamond Mine) covering multiple sampling locations from 1997 to 2001, including physicochemical parameters, toxicity tests, and dissolved/total metal concentrations tracked across tailings pond, pit, ditch, and creek locations.
Water Quality Monitoring Wastewater Effluent Quality Criteria
Water Surveillance Network Program (SNP) Monthly Reports, Water Licence N7L2-1616, Ekati Diamond Mine (BHP Billiton, January 2000 to May 2001)
11 June 2001Report
BHP Diamonds Inc. water surveillance program monthly report for May 2001 submitted to the Mackenzie Valley Land and Water Board in compliance with water licence N7L2-1616, containing water sampling results, flow and volume measurements for various lakes and facilities, waste rock production data, and weather data from the mine site.
Water Quality Monitoring Regulatory Wastewater
Water Licence N7L2-1616 Amendment Hearing, Technical Advisory Committee Ruling (MVLWB, May 2001)
15 May 2001Letter
The Mackenzie Valley Land and Water Board responds to DIAND's concerns regarding Water License N7L2-1616 for BHP Diamonds Inc., addressing procedural issues with the Technical Advisory Committee policy and clarifying that agencies like DIAND may participate in both public hearings and TAC processes. The Board affirms its intention to resolve technical issues through a fair and transparent TAC process.
Regulatory Water Licence Correspondence
Environmental Health Requirements for Land & Water Use Permit Applicants (Stanton Regional Health Board, March 2001)
20 March 2001Report
Stanton Regional Health Board outlines environmental health legislative requirements for applicants seeking Land or Water Use Permits in the Northwest Territories, specifying N.W.T. Public Health Act regulations and detailing required information on accommodation, food service, sanitation, sewage, water supply, and effluent discharge.
Regulatory Wastewater Water Quality
Fox Lake Dewatering Chronology and Regulatory Record, Water Licence N7L2-1616 (BHP Billiton, January 2001 to August 2003)
2001Regulatory Filing
Chronology of regulatory correspondence and approvals (January 2001–August 2003) documenting the dewatering of Fox Lake at Ekati Diamond Mine, including water license amendments, management plan approvals, and disputes over the classification and discharge of Fox pit water into Long Lake Containment Facility Cell D.
Regulatory Water Licence Wastewater
Bioassay Test Results, Ekati Diamond Mine Effluent Samples (Environment Canada, October 2000)
2000Report
Bioassay Test Results binder — Environment Canada Environmental Protection Branch (Yellowknife) reports on toxicity testing of BHP Ekati Diamond Mine effluent samples (sampled by Tom Unka, October-December 2000). Includes Ecotoxicology Laboratory EP Laboratories Prairie & Northern Region (5320-122 Street Edmonton) reports for Daphnia magna (Lab Sample 00-01658, 00-01632) and rainbow trout (Lab Sample 00-01657) toxicity tests, with test conditions (300 ml beakers, 150 ml volume, 16h light / 8h dark photoperiod, 548 lux) and test chemistries (temperature, dissolved oxygen, conductivity, pH at 0h and 48h). Glossary of EC50, IC50, dilution-series terms.
Wastewater Aquatics Water Quality
Preliminary Design of Water Control Structures for Sable, Pigeon and Beartooth Pit Developments, Ekati Diamond Mine (EBA Engineering, April 2000)
1 April 2000Report
Preliminary design report for water control structures at three proposed kimberlite pit developments (Sable, Pigeon, and Beartooth) at the Ekati Diamond Mine, including specifications for retention dams, filter dykes, stream diversions, and water management systems to address pit dewatering, sediment control, and environmental protection.
Development Plans Water Quality Monitoring Wastewater
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
Sable, Pigeon and Beartooth Development Regulatory File and BHP Socio Economic Annual Reports, Ekati Diamond Mine (Chris Mills, 1997 to 2000)
1 April 2000Report
This composite document contains two reports: (1) Chris Mills' technical review of BHP Diamonds' wastewater and tailings management for the NWT Diamonds Project, highlighting concerns about tailings characterization, turbidity discharge compliance, and acid neutralization potential; and (2) the 1999 Annual Report on Community Health and Well Being for BHP's point-of-hire communities, presenting socioeconomic monitoring data on employment, health outcomes, and social indicators for communities affected by the Ekati Mine development.
Wastewater Waste Rock Water Quality
Water Surveillance Network Program (SNP) Monthly Reports, Water Licence N7L2-1616, Ekati Diamond Mine (BHP Billiton, 1998 to 1999)
1 March 2000Report
Monthly water surveillance network program report for December 1999 and November 1999 from BHP Diamonds Inc. for the Ekati Diamond Mine, presenting detailed water sampling results, chemical analyses, flow measurements, and weather data from multiple monitoring stations in compliance with water licence N7L2-1616.
Monitoring Water Quality SNP
Kodiak Lake Sewage Effects Study Technical Report, Ekati Diamond Mine (BHP Billiton, January 2000)
31 January 2000Report
This technical report presents results from the 1999 Kodiak Lake Sewage Effects Study, the third and final year of a three-year monitoring program examining the effects of treated sewage effluent discharge on the lake ecosystem. The report documents changes in water quality, biological communities, sediment conditions, and fish populations from 1994–1999, and includes dissolved oxygen modelling and assessment of downstream impacts on Little Lake.
Wastewater Aquatics Water Quality
Kodiak Lake Sewage Effects Study Technical Report, Appendices, Ekati Diamond Mine (BHP Billiton, January 2000)
1 January 2000Report
Technical report documenting the 1999 Kodiak Lake Sewage Effects Study conducted by Rescan Environmental Services for BHP Diamonds Inc., including detailed stream flow monitoring data from multiple locations (Grizzly, PDC Mouth, Kodiak-Little) throughout the year with discharge measurements, gauge heights, velocities, and field methodology.
Monitoring Water Quality Aquatics
BHP Diamonds Fisheries Act Prosecution File, Panda Diversion Channel (IEMA, 2000 to 2004)
2000–2004Regulatory Filing
Court decision and regulatory correspondence documenting BHP Diamonds' trial on Fisheries Act charges (s.35 and s.36) related to fish habitat disruption during mine construction (1994-1997), including a warning letter issued by DFO for unauthorized dewatering of Bearclaw Lake in August 2004. The Supreme Court of the Northwest Territories acquitted BHP of four charges, finding that s.35(2) Authorization authorized the harm and that the company exercised due diligence.
Regulatory Fish Habitat Aquatics Wastewater
Project Description, Proposed Development of Sable, Pigeon and Beartooth Kimberlite Pipes, Ekati Diamond Mine (BHP Billiton, October 1999)
1 October 1999Regulatory Filing
BHP Diamonds Inc. proposes to develop three additional kimberlite pipes (Sable, Pigeon, and Beartooth) at the Ekati Diamond Mine in the Northwest Territories to extend mine life from 15 to 18 years. The project description outlines mining methods, waste and water management strategies, infrastructure requirements, and environmental mitigation measures for the three new open pit operations, prepared in response to Mackenzie Valley Environmental Impact Review Board requirements and incorporating community consultation feedback.
Development Plans Waste Rock Wastewater
Assessment of Ecological Effects from Cadmium Releases, Proposed Diavik Diamond Mine (Gartner Lee, September 1999)
1 August 1999Report
This environmental assessment evaluates the potential ecological effects of cadmium releases from the proposed Diavik Diamond Mine on Lac de Gras, examining cadmium sources, environmental fate, bioaccumulation in aquatic organisms, and predicted adverse effects on aquatic life including fish, invertebrates, and sediment-dwelling organisms.
Aquatics Water Quality Development Plans
Compliance Report, Water Licence N7L2-1616, Ekati Diamond Mine (BHP Billiton, July 1999)
20 July 1999Report
This 1998 compliance report documents BHP Diamonds Inc.'s adherence to water licence N7L2-1616 for the Ekati Diamond Mine, detailing water use, dewatering operations, construction projects, waste disposal, tailings management, environmental monitoring, and 17 inspections conducted during the year. Overall compliance is deemed satisfactory, though some non-compliance events occurred regarding runoff water quality and sewage discharge standards, which the licensee addressed through remedial infrastructure and operational modifications.
Regulatory Water Licence Water Quality

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174 documents · Page 6 of 9