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220 documents · Page 9 of 11

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Sable Lake 1997 Fisheries Resource and Habitat Survey (BHP Billiton, April 1998)
1 April 1998Report
This 1997 baseline fisheries survey of Sable Lake, a small oligotrophic tundra lake north of the Ekati Diamond Mine, documents fish community composition (110 lake trout and 2 slimy sculpin), habitat characteristics, and water quality conditions prior to potential future kimberlite mining. The isolated lake contains an estimated 99–189 lake trout susceptible to gill nets, with predominantly boulder substrate offering minimal spawning habitat and disconnected inflow/outflow streams.
Aquatics Fish Habitat Monitoring Development Plans Regulatory
Assessment of Kodiak Lake Mitigation for Oxygen Depletion, Ekati Diamond Mine (BHP Billiton, February 1998)
23 February 1998Report
This report assesses BHP Diamonds' response to rapid oxygen depletion in Kodiak Lake at the Ekati Mine in February 1998, evaluating mitigation measures including lake aeration, snow removal, sewage treatment modifications, and discharge alterations. The document provides monitoring data, literature review on Arctic lake limnology, and recommendations for continued monitoring and consultation with aeration experts.
Water Quality Aquatics Monitoring Aquatic Effects Monitoring (AEMP)
Aquatic Effects Monitoring Program (AEMP) Technical Overview Working Document, Final Draft Version 3, Ekati Diamond Mine (BHP Billiton, February 1998)
13 February 1998Report
This technical overview document details BHP Diamonds' Aquatic Effects Monitoring Program (AEMP) for the Ekati Diamond Mine, presenting a comprehensive framework for monitoring valued ecosystem components including water quality, sediment quality, and fish/aquatic habitat across the Koala drainage basin and reference lakes. The document outlines a tiered approach to monitoring, compliance requirements, stressors of potential concern (habitat impacts, sedimentation, contamination), and decision-making procedures to ensure the project does not cause significant adverse impacts on receiving aquatic ecosystems.
Aquatic Effects Monitoring (AEMP)Aquatics Fish Habitat Benthic Invertebrates
Panda Diversion Channel Sedimentation Management & Contingency Plan (BHP Billiton, February 1998)
1 February 1998Report
This is BHP Diamonds Inc.'s Sedimentation Management and Contingency Plan for the Panda Lake Diversion Channel at the Ekati Mine in the NWT, addressing sediment impacts to Kodiak Lake that occurred during the 1997 spring freshet. The plan outlines short-term stabilization and mitigation measures (including Grizzly Creek restoration, bank stabilization, and sediment curtains) and long-term monitoring and restoration strategies to minimize future sedimentation from channel construction and permafrost degradation.
Aquatics Water Quality Fish Habitat
Aquatic Effects Monitoring Program (AEMP) Technical Overview Working Document, Ekati Diamond Mine (BHP Billiton, January 1998)
27 January 1998Report
This technical overview document describes the Aquatic Effects Monitoring Program (AEMP) framework for the BHP Diamonds Project (Ekati), detailing objectives, valued ecosystem components (VECs), stressors of potential concern (SOPCs), monitoring parameters, and a tiered implementation approach to assess project impacts on aquatic ecosystems in the Northwest Territories.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality Benthic Invertebrates
Aquatic Monitoring Baseline Study Appendices, Ekati Diamond Mine (BHP Billiton, January 1998)
19 January 1998Report
1997 Aquatic Monitoring Baseline Study appendices for Ekati Diamond Mine, containing environmental sampling location maps and comprehensive water quality and sediment chemistry data from study lakes and streams.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Aquatic Monitoring Baseline Study, Ekati Diamond Mine (BHP Billiton, January 1998)
1 January 1998Report
This 1997 aquatic monitoring baseline study for the Ekati Diamond Mine documents comprehensive sampling of lakes and streams within and outside the Koala Watershed, measuring water and sediment quality, limnological characteristics, and biological communities including primary producers, secondary producers, and fish populations. The study establishes baseline conditions prior to mine development and establishes reference sites for long-term aquatic effects monitoring.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality Benthic Invertebrates
Sable, Pigeon & Beartooth Kimberlite Pipes Environmental Assessment Case File, Binder 1, Tab 1 General Information (IEMA, 1998 to 2002)
1998–2002Report
Sable, Pigeon and Beartooth (SPB) Binder 1 for the Ekati Diamond Mine BHP Billiton Diamonds Inc. (2001-2002). Tab 1 General Information including Information Update #8 on EA progress for SPB Kimberlite Pipe development, BHP commitment to update relevant plans and monitoring programs under the Environmental Agreement, correspondence Marc Lange (DFO) / Derek Chubb (BHP) / Scott Williams (BHP) / Zabey Nevitt (Agency). Includes MVEIRB issued Environmental Assessment Terms of Reference for the BHP Diamonds Inc. Beartooth, Pigeon and Sable Kimberlite Pit Mine Extension covering Developer Identification, Tenure, Developer's Policies, Performance Record, Regulatory Regime, and Conformity. Also includes wolf-den-site discussion (revisitable previously-active sites, two-week pre-monitoring requirements, natal-den-site preferences).
Development Plans Regulatory Correspondence Water Licence
Aquatic Effects Monitoring Program (AEMP) Technical Overview Working Document, Discussion Draft, Ekati Diamond Mine (BHP Billiton, January 1998)
1 January 1998Report
This technical overview working document outlines the Aquatic Effects Monitoring Program (AEMP) for the BHP Diamonds Project (Ekati Diamond Mine), detailing the framework for monitoring aquatic environments during all project phases. The program employs a tiered approach combining water quality measurements, sediment analysis, and biological community assessment across reference and potentially impacted lakes and streams to detect project-related impacts and test environmental predictions from the EIA.
Aquatic Effects Monitoring (AEMP)Aquatics Monitoring
Kodiak Lake Sewage Effects Study, Ekati Diamond Mine (BHP Billiton, December 1997)
19 December 1997Report
This report presents the results of the 1997 Kodiak Lake Sewage Effects Study, a three-year monitoring program initiated to examine the effects of treated sewage effluent from the Ekati Mine camp (500–1000 people) on the aquatic environment of Kodiak Lake. The study documents changes in water quality, sediment quality, primary and secondary producers, and fish populations resulting from sewage discharge that began in April 1997, with comparisons to pre-discharge baseline data from 1993–1996.
Aquatics Water Quality Wastewater
Stream Habitat Compensation Program, Panda Lake Diversion Channel, Draft Version 02 (BHP Billiton, December 1997)
8 December 1997Report
BHP Minerals Canada Ltd. submitted a Fish Habitat Compensation Program plan for the Panda Lake Diversion Channel, developed by Dillon Consulting Limited to address harmful alteration of fish habitat from mining operations. The plan details fish habitat creation, enhancement, monitoring and maintenance designs for a 3,400-meter diversion channel constructed between Panda and Kodiak Lakes to restore fish connectivity and compensate for 930 meters of impacted stream habitat in the Koala Watershed.
Fish Habitat Aquatics Development Plans Water Quality
Stream Habitat Compensation Program, Panda Lake Diversion Channel, Fish Habitat Creation, Enhancement, Monitoring and Maintenance Plan, NWT Diamonds Project (BHP Billiton, December 1997)
8 December 1997Report
This is a fish habitat compensation plan for the Panda Lake Diversion Channel developed by BHP Minerals Canada Ltd. and Dillon Consulting to address impacts of the NWT Diamonds Project on stream fish habitat. The plan details physical and hydrological characteristics of the constructed diversion channel, proposed habitat creation and enhancement features, monitoring protocols, and a phased implementation strategy to achieve no net loss of fish habitat as required by the federal Fisheries Act.
Fish Habitat Aquatics Development Plans Regulatory
Beartooth Lake 1997 Fisheries Resource and Habitat Survey (BHP Billiton, November 1997)
1 November 1997Report
This 1997 baseline fisheries resource and habitat survey of Beartooth Lake documents fish species composition, population estimates, condition factors, and habitat characteristics prior to planned bulk sampling diamond drilling. The survey found Arctic grayling and lake trout as primary species, with population estimates of 98–131 Arctic grayling and 42–46 lake trout susceptible to index gill nets, alongside oligotrophic water conditions and limited stream spawning habitat.
Aquatics Fish Habitat Monitoring
Sediment Loading to Kodiak Lake Through the Panda Diversion Channel, Ekati Diamond Mine (BHP Billiton, September 1997)
1 September 1997Report
This report documents a sediment survey of Kodiak Lake conducted in August 1997 to assess sediment loading from the Panda Diversion Channel, which was constructed to maintain water connection between Panda and Kodiak lakes during mining operations at the NWT Diamonds Project. Results show that channel sediments were primarily confined to the delta at the channel mouth and shallow areas within approximately 200–600 meters of the discharge point, with thicknesses ranging from 2 to over 30 centimeters.
Water Quality Aquatics Monitoring
Summary of the Independent Review of the BHP Diamond Mine Process (CIRL, 1997)
30 June 1997Report
This independent review by the Canadian Institute of Resources Law examines the regulatory processes, agreements, and decision-making framework that led to approval of BHP's diamond mine in the Lac de Gras area of the Northwest Territories. The report documents the Environmental Agreement, water licence, Impact and Benefits Agreements, and Socio-Economic Agreement, and provides recommendations for applying this model to future mineral development in the North.
Environmental Agreement Development Plans Regulatory Traditional Knowledge
Traditional Knowledge Study of Ek'ati (YKDFN, 1997)
~1997Report
Approximate date — inferred from filename
This 1997 traditional knowledge study documents the history, territory, and environmental knowledge of the Weledeh Yellowknives Dene First Nation regarding Ek'ati (Lac de Gras), an area planned for diamond mining development. The report includes extensive recommendations for minimizing mining impacts on ancestral sites, water resources, wildlife, and the people's continued use of their traditional lands.
Traditional Knowledge Yellowknives Dene Wildlife
Operating Environmental Management Plan Regulatory File, Water Licence N7L2-1616, Ekati Diamond Mine (BHP Billiton, 1997 to 2008)
1997–2008Report
Operating Environmental Management binder for the Ekati Diamond Mine (2007-onwards), Wek'èezhii Land and Water Board (WLWB Wekweètì) correspondence. Includes April 11 2007 letter from the Joint Review Panel for the Mackenzie Gas Project to Dr. Bill Ross (IEMA Chair, Box 1192 Yellowknife), reviewer comments from Environment Canada and MEHL Environmental on the Water Licence's requirement for representative sampling/testing of each rock unit in the geochemical characterization program, waste-rock characterization sample sizes (Table 3.1) relative to total tonnage, and the BHP CODE 1 emergency-radio procedures (Camp Manager direction, Sprung storage area sheltering).
Regulatory Water Licence Correspondence Fish Habitat Monitoring
Panda Diversion Channel (PDC) Surveillance and Effects Monitoring Program, Binder, Ekati Diamond Mine (BHP Billiton, 1997–2007)
1997–2007Report
Panda Diversion Channel (PDC) Surveillance and Effects Monitoring Program (SEMP) binder for the Ekati Diamond Mine (1997-2007). Annual PDC reports from BHPB (Brent Murphy distribution 2005-2007 to Kevin O'Reilly, Agency), DIAND Water Resources comments (Francis Jackson, May 2002) on AEMP refinements and re-evaluation and aquatic baseline collection for Sable / Pigeon / Beartooth, Dillon Consulting Limited 1997 Stream Habitat Compensation Program creation/enhancement/monitoring/maintenance plans, YOY Arctic Grayling numbers per habitat-assessment site (1998-2001 at sites DCH1, DCH2, DCH4, DCH9, DCH10, DCH11, DCH15) with mean fork-length growth tracking August-September 2001, PDC and tributary habitat stability, Stabilization, Sediment Mitigation, and Sediment Management short-term plans.
Aquatics Fish Habitat Aquatic Effects Monitoring (AEMP)
Fish Habitat Compensation Fund File, Ekati Diamond Mine (DFO, December 1996 to September 2004)
1996Letter
Fish Habitat Compensation Fund binder for the Ekati Diamond Mine (2001-2004). Correspondence between Dave Balint (DFO), David Scott (BHPB), Joe Acorn (DFO), and Tasha Stephenson (DFO Habitat Compensation). Includes the May 14 2001 BHP Habitat Compensation Fund Advisory Committee Meeting Minutes, Rae Lakes proposal for fish habitat compensation (September 2004), the Section 12 Notices clause for DFO Habitat Management Division (501 University Crescent), invalidity / severability provisions, and the Merlin-Osprey Stream pond-and-inlet substrate design (boulder/cobble/fine substrate ratios) producing a net gain of Weighted Habitat Units (HUs) for Arctic grayling.
Fish Habitat Correspondence Aquatics Traditional Knowledge Board Meetings
Meteorology, Hydrology, Water Quality & Fisheries and Aquatic Life Environmental Data Report, Ekati Diamond Mine (BHP Billiton, December 1996)
1 December 1996Report
This 1996 environmental data report documents baseline monitoring results for meteorology, hydrology, water quality, and aquatic life in the Koala watershed at the BHP Diamonds Project (Ekati mine) in the Northwest Territories. Key findings include above-average precipitation in 1996 (particularly August), corresponding high stream flows in late summer, water quality characterized by slightly acidic low-turbidity conditions, and fish populations in monitoring lakes dominated by round whitefish and lake trout with minor disturbance signals in Kodiak Lake related to mining activities.
Monitoring Water Quality Aquatics

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220 documents · Page 9 of 11