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Aquatic Effects Monitoring Program (AEMP) Part 2 — Data Report, Ekati Diamond Mine (BHP Billiton, March 2013)
1 March 2013Report
This 2012 Aquatic Effects Monitoring Program (AEMP) Part 2 Data Report presents comprehensive field methodology and detailed monitoring data for the aquatic environment at BHP Billiton's Ekati Diamond Mine. The report documents physical limnology, water quality, plankton, benthic invertebrates, fish communities, hydrology, and meteorology data collected from October 2011 to September 2012 across multiple lakes and streams in the Koala and King-Cujo watersheds.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) Re-evaluation, Ekati Diamond Mine (BHP Billiton, December 2012)
3 December 2012Report
BHP Billiton's 2012 Aquatic Effects Monitoring Program Re-evaluation for EKATI Diamond Mine proposes updates to monitoring design, sampling methods, and analysis techniques for the 2013-2015 period, including new sampling stations, modified variable evaluation lists, and multivariate statistical analyses, along with a proposed Pigeon project AEMP plan. The report addresses stakeholder comments and provides 33 recommendations to improve detection of potential mine effects on aquatic ecosystems.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Type A Water Licence Renewal (W2012L2-0001) Public Hearing Binder, Ekati Diamond Mine (MVLWB, February 2013)
30 November 2012Regulatory Filing
BHP Billiton's response to technical information requests from regulatory agencies and the Wek'èezhìı Land and Water Board regarding renewal of water licence W2009L2-0001 for the Ekati Diamond Mine, addressing water quality modelling, site-specific water quality objectives for chloride, nitrate and sulphate, and environmental monitoring data.
Water Licence Regulatory Water Quality
Environmental Impact Report, Plain English Summary, Ekati Diamond Mine (BHP Billiton, October 2012)
1 October 2012Report
This is BHP Billiton's 2012 Environmental Impact Report for the EKATI Diamond Mine in the Northwest Territories, presented in plain language for non-technical readers. The report documents environmental monitoring results from 2009-2011, identifies 22 ranked key environmental risks across air, land, water, and wildlife categories, and describes management practices and mitigation strategies to address these risks as the mine continues operations toward eventual closure and reclamation.
Development Plans Monitoring Environmental Agreement
Environmental Impact Report 2012, Ekati Diamond Mine (BHP Billiton, October 2012)
1 October 2012Report
BHP Billiton's 2012 Environmental Impact Report for the Ekati Diamond Mine compares environmental monitoring results from 2009-2011 against predictions in the 1995 Environmental Impact Statement, identifying 22 key environmental risks and management practices. The report covers air, land, water, and wildlife monitoring programs, with particular focus on aquatic receiving environment impacts from containment facilities, caribou migration route alterations, and residual environmental risks despite implemented mitigation measures.
Development Plans Monitoring Aquatics
Work Plan for the Fish Component of the Aquatic Effects Monitoring Program (AEMP), Ekati Diamond Mine (BHP Billiton, May 2012)
28 May 2012Report
This is a revised work plan for the fish component of the 2012 Aquatic Effects Monitoring Program at EKATI Diamond Mine, incorporating recommendations from the Wek'èezhii Land and Water Board. The plan details sampling methodologies for lake trout, round whitefish, and slimy sculpin across nine AEMP lakes, including non-lethal sampling techniques, tissue analyses for metals and hydrocarbons, and palatability assessments using DELT analysis and traditional knowledge.
Aquatic Effects Monitoring (AEMP)Aquatics Monitoring
Aquatic Effects Monitoring Program (AEMP) Summary Report, Ekati Diamond Mine (BHP Billiton, April 2012)
5 April 2012Report
BHP Billiton's 2011 Aquatic Effects Monitoring Program report for EKATI Diamond Mine documents changes in aquatic ecosystem parameters across the Koala and King-Cujo watersheds, finding 16 water quality variables with elevated concentrations downstream of the Long Lake Containment Facility discharge point, along with biological changes in phytoplankton and zooplankton communities, assessed against reference lakes and baseline conditions.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) Part 2 — Data Report, Ekati Diamond Mine (BHP Billiton, April 2012)
1 April 2012Report
This is the 2011 Aquatic Effects Monitoring Program Part 2 Data Report for the Ekati Diamond Mine, prepared by Rescan Environmental Services for BHP Billiton Canada Inc. in April 2012. The report documents comprehensive aquatic environmental monitoring data collected from October 2010 to September 2011, including meteorology, hydrology, water quality, physical limnology, and biological communities (phytoplankton, zooplankton, benthic invertebrates) across lakes and streams in the Koala and King-Cujo watersheds.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Long Lake Containment Facility Nitrate In Situ Treatment Test, EKATI Diamond Mine (BHP Billiton, April 2012)
1 April 2012Report
This report documents the 2011 Phase IV nitrate in situ treatment test at the Long Lake Containment Facility (LLCF) of the EKATI Diamond Mine, in which monopotassium phosphate fertilizer (4.3 tonnes) was added to Cell D between July 29 and August 20 to stimulate phytoplankton growth and biological uptake of elevated nitrate concentrations. Although the test stimulated phytoplankton blooms, there was no significant reduction in the calculated nitrate load of Cell D over the 2011 open-water season; however, nitrate concentrations did not increase despite continued upstream loading.
Wastewater Water Quality Aquatics Development Plans
Aquatic Effects Monitoring Program (AEMP) Part 1 — Evaluation of Effects, Ekati Diamond Mine (BHP Billiton, April 2012)
1 April 2012Report
This 2011 Aquatic Effects Monitoring Program report evaluates the effects of Ekati Diamond Mine operations on aquatic ecosystems in the Koala and King-Cujo watersheds. The comprehensive analysis covers water quality, sediment quality, physical limnology, and biological communities (phytoplankton, zooplankton, and benthos) across multiple lakes and streams over an 18-year monitoring period.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Water Licence Renewal Application, Ekati Diamond Mine, W2009L2-0001 (Ontario Ministry of the Environment, April 2012)
2012Regulatory Filing
BHP Billiton Diamonds Ekati Water Licence Renewal Application 2012 (Eric Denholm BHP Billiton Diamonds, Reference 11-1421-0018, April 23 2012). Includes Ontario Ministry of Environment Standards Development Branch's contributed Canadian Water Quality Guidelines (CWQGs) for chloride and the recently revised CWQG for nitrate to the CCME Water Quality Task Group, Buckley/Roch/McCarter/Rendell/Matheson (1982) chronic-coho-salmon copper-exposure studies, Kamunde/Grosell/Higgs/Wood (2002) copper metabolism in rainbow trout, Rescan 2012 EKATI Koala Watershed Water Quality Modelling, Ohio Administrative Code 3745-1 Division of Surface Water, Rai/Eary/Zachara (1989) chromium environmental chemistry, and Roe et al. (2010) Canadian water quality guidelines for chloride.
Water Quality Water Licence Regulatory
Panda Diversion Channel Monitoring Program Final Report, Ekati Diamond Mine (BHP Billiton, March 2012)
1 March 2012Report
This is the final year (2011, 13th year) of monitoring the Panda Diversion Channel (PDC), a compensatory fish habitat constructed in 1997 to offset stream losses from Ekati Diamond Mine development. The report assesses the PDC's effectiveness through measurements of physical habitat (flow, temperature, water quality, culverts, enhancement structures), biological productivity (benthic invertebrates, vegetation, fish populations), and Arctic grayling use, concluding that the PDC has successfully matured and serves its purpose as defined in the 1996 Fish Habitat Compensation Agreement with Fisheries and Oceans Canada.
Fish Habitat Aquatic Effects Monitoring (AEMP)Monitoring Traditional Knowledge
Environmental Impact Report (EIR) Technical Session & Related IEMA Meeting Materials, Ekati Diamond Mine (BHP Billiton, March to September 2012)
2012Meeting Agenda
Agenda — BHP Billiton Canada Inc. Environmental Impact Report (EIR) Technical Session for the EKATI Diamond Mine, Katimavik Room, Explorer Hotel, July 9-11 2012. Day 1 covers Completion of the Panda Diversion Channel (PDC) Monitoring Program (constructed 1997 as compensation for stream-habitat loss, 10-year monitoring) by François Landry (Rescan Environmental Services Ltd.) — comparison to Pigeon and Polar-Vulture Streams reference systems. Day 2 covers EIR Technical Session including the Effluent Discharge Plan to restore Long Lake Containment Facility (LLCF) Emergency Storage Capacity through winter/spring (within allowable flow rates) and EKATI Site-Specific Water Quality Objective (SSWQO) for Nitrate.
Agendas Board Meetings Fish Habitat
Environmental Agreement and Water Licence Annual Report Summary 2012, Ekati Diamond Mine (Dominion Diamond, 2012)
2012Report
Dominion Diamond Ekati Corporation Environmental Agreement and Water Licence Annual Report Summary 2012 for the Ekati Diamond Mine. Includes June 12 2013 IACT (Independent Aboriginal Communities Trust) Ekati Site Tour agenda, mining activity at Fox Pit, waste rock movement to Fox / Panda / Koala / new Misery Waste Rock Storage Areas (also capping the landfill), 648 daily-average site population in 2012, new Waste Advisor position and recycling improvements, plans to process over 6.2 million tonnes of kimberlite ore in 2013 (Misery, Pigeon and other pits), and fish-tissue metal concentrations vs guidelines for the Koala and King-Cujo Watersheds.
Monitoring Water Quality Waste Rock Air Quality
Wastewater and Processed Kimberlite Management Plan Version 2.0, EKATI Diamond Mine (BHP Billiton, October 2011)
20 October 2011Report
BHP Billiton's Wastewater and Processed Kimberlite Management Plan Version 2.0 (October 2011) describes the comprehensive management strategy for all wastewater and fine processed kimberlite at the Ekati Diamond Mine, submitted to the Wek'èezhii Land and Water Board for approval under Water Licence W2009L2-0001. The plan proposes significant updates to processed kimberlite deposition strategy, deferring or potentially eliminating the need for Cell D deposition by utilizing upstream areas in Cells A and C and the mined-out Beartooth Pit, while maintaining water quality standards and minimizing environmental effects in the receiving environment.
Kimberlite Tailings Wastewater Water Quality
Cover System Design for Mine Closure Short Course, Mine Closure 2011 (BHP Billiton, September 2011)
18 September 2011Report
This is the conference program and materials for the 6th International Conference on Mine Closure held September 18-21, 2011 at the Fairmont Chateau Lake Louise in Alberta, Canada. The document includes a short course on Cover System Design for Mine Closure delivered on September 18, 2011 by experts from the University of Alberta and Golder Associates, along with the full conference schedule, plenary speakers, technical sessions, and sponsorship information for the 600-delegate international conference on mine closure practices.
Closure & Reclamation Closure Plan Waste Rock
Interim Closure and Reclamation Plan (ICRP) Version 2.4, EKATI Diamond Mine (BHP Billiton, August 2011)
31 August 2011Report
BHP Billiton's Interim Closure and Reclamation Plan Version 2.4 for the EKATI Diamond Mine (August 2011) outlines comprehensive strategies for site reclamation including pit lake creation through flooding, waste rock storage management with permafrost preservation, Long Lake Containment Facility capping, and progressive reclamation of infrastructure. The plan incorporates regulatory requirements from water licences, environmental agreements, and Board directives, with extensive research programs addressing uncertainties in water quality, wildlife safety, and vegetation sustainability.
Closure & Reclamation Closure Plan Water Quality
Interim Closure and Reclamation Plan (ICRP) Version 2.4, Ekati Diamond Mine (BHP Billiton, August 2011)
31 August 2011Report
BHP Billiton's Interim Closure and Reclamation Plan (Version 2.4) for the EKATI Diamond Mine in the Northwest Territories outlines comprehensive strategies for mine closure and environmental reclamation, including pit lake creation, waste rock management, processed kimberlite containment, infrastructure removal, and extensive research and monitoring programs to address uncertainties in water quality, wildlife safety, and ecosystem recovery.
Closure & Reclamation Closure Plan Water Quality
Long Lake Containment Facility (LLCF) Nitrate In Situ Treatment Test, Ekati Diamond Mine (BHP Billiton, August 2011)
22 August 2011Letter
This report documents the 2010 Long Lake Containment Facility Nitrate In Situ Treatment Test, in which monopotassium phosphate fertilizer was applied to Cell D to stimulate phytoplankton growth and reduce nitrate concentrations. While Phase II (2009) achieved a 19% reduction in nitrate load, Phase III (2010) showed no statistically significant reduction despite residual phosphate benefits and a large early phytoplankton bloom, likely due to efficient zooplankton grazing that collapsed the bloom in late July.
Wastewater Water Quality Aquatics
Fay Bay Monitoring Program, Ekati Diamond Mine (BHP Billiton, August 2011)
12 August 2011Report
This report presents the 2010 Fay Bay Aquatic Monitoring Program results following an unplanned processed kimberlite (PK) release in May 2008. The monitoring data indicate recovery of both aquatic and terrestrial environments, with vegetation re-establishing and water quality parameters returning toward baseline conditions, though some chemical effects remain three years after the incident.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality

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821 documents · Page 10 of 42