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940 documents · Page 29 of 47

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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
Panda Diversion Channel Monitoring Program Technical Report, Ekati Diamond Mine (BHP Billiton, January 2000)
1 January 2000Report
This is the second year (1999) monitoring report for the Panda Diversion Channel at Ekati Diamond Mine, assessing the performance of constructed fish habitat enhancements and channel stability following a major freshet event. The report documents hydrology, spring fish migration, larval emergence, habitat assessments, channel stability, benthic invertebrates, and periphyton communities, comparing 1999 results with 1998 baseline data and concluding that Arctic grayling and other fish species are utilizing the channel and enhancements successfully despite some areas of channel degradation from exaggerated peak flows.
Fish Habitat Aquatic Effects Monitoring (AEMP)Monitoring Development Plans
Panda Diversion Channel Monitoring Program Technical Report, Stream Habitat Compensation Program, Ekati Diamond Mine (BHP Billiton, January 2000)
2000Report
Panda Diversion Channel (PDC) Monitoring Program 1999 Technical Report (Final, January 2000, BHP Diamonds Inc., File 4.3.8.1, Project 99-6331). Includes the 1999 Aquatic Effects Monitoring Program transmittal to Gordon Wray (NWT Water Board, File N7L2-1616), Phase I and II PDC habitat-enhancement completion (BHP 1998) status, Bear Tooth Lake / Camp / Sediment Berms / Sediment Curtains / Kodiak Lake / Koala Lake Dam site plan, Panda Pit and Panda Lake configuration drawings, and PDC Revegetation report (Table 3 mean sediment properties for willow / Salix sp. cuttings and Arctic Pendant Grass / Arctophila fulva sprigs).
Aquatics Aquatic Effects Monitoring (AEMP)Fish Habitat
Environmental Assessment Terms of Reference, Sable, Pigeon & Beartooth Pipes, Ekati Diamond Mine Extension (MVEIRB, December 1999)
13 December 1999Report
This document is the Environmental Assessment Terms of Reference issued by the Mackenzie Valley Environmental Impact Review Board on December 13, 1999, for BHP Diamonds Inc.'s proposed extension of the Ekati Diamond Mine through the development of Beartooth, Pigeon, and Sable kimberlite pits. The Terms of Reference specify the scope, methodology, and requirements for the Environmental Assessment Report, including assessments of physical, biological, and social-economic-cultural impacts, cumulative effects, public consultation, traditional knowledge integration, and closure and reclamation planning.
Development Plans Traditional Knowledge Environmental Agreement
Cumulative Effects Assessment and Management (CEAM) Workshop, Developing a Blueprint for a Coordinated Approach in the NWT (Multiple parties, December 1999)
9 December 1999Report
This workshop report documents a three-day Cumulative Effects Assessment and Management (CEAM) workshop held in Yellowknife in December 1999, where stakeholders including Aboriginal governments, federal and territorial agencies, industry, and NGOs developed a coordinated framework for assessing and managing cumulative environmental effects in the Northwest Territories. The workshop produced a conceptual CEAM framework with components including vision/objectives, baseline studies, monitoring, project assessments, and environmental management strategies, along with proposed terms of reference for a Working Group to further develop and implement the framework.
Monitoring Traditional Knowledge Regulatory Wildlife Development Plans
Aquatic Effects Monitoring Program (AEMP) Technical Report Appendices, Ekati Diamond Mine (BHP Billiton, December 1999)
1 December 1999Report
The 1999 Aquatic Effects Monitoring Program (AEMP) technical report appendices present comprehensive environmental sampling data and analysis for lakes and streams at the Ekati Diamond Mine, including water quality, physical limnology, climatic parameters, stream flow measurements, and sediment chemistry collected throughout 1999.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) Technical Report, Appendices Volume I, Ekati Diamond Mine (BHP Billiton, December 1999)
1 December 1999Report
The 1999 Aquatic Effects Monitoring Program (AEMP) Technical Report Appendices Volume I presents environmental monitoring data collected at the Ekati Diamond Mine, including sampling locations for AEMP lakes, climatic data from monitoring stations, stream flow measurements, and water quality parameters across multiple lakes and streams in the region.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) Technical Report, Appendices Volume II, Ekati Diamond Mine (BHP Billiton, December 1999)
1 December 1999Report
This is Volume II of the 1999 Aquatic Effects Monitoring Program (AEMP) Technical Report for the Ekati Diamond Mine, containing detailed appendices with phytoplankton, zooplankton, benthos, and fish community data, along with statistical analyses and taxonomic results from AEMP lakes and streams collected from July through September 1999.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Panda Diversion Channel Research Project Progress Report (University of Alberta, 1999)
1 December 1999Report
This 1999 progress report documents the University of Alberta's research assessing the effectiveness of the Panda Diversion Channel at Ekati Diamond Mine as fish habitat replacement, including studies of Arctic grayling populations, benthic communities, water chemistry, and hydraulic modeling of constructed habitat structures.
Fish Habitat Aquatic Effects Monitoring (AEMP)Monitoring
Aquatic Effects Monitoring Program (AEMP) Technical Report, Appendices Volume II, Ekati Diamond Mine (BHP Billiton, December 1999)
1 December 1999Report
Technical report Volume II appendices documenting the 1999 Aquatic Effects Monitoring Program (AEMP) for the Ekati Diamond Mine, containing detailed taxonomic results, biomass data, and statistical analyses for phytoplankton, zooplankton, benthos, and fish communities across multiple AEMP lakes and streams in the Northwest Territories.
Aquatics Aquatic Effects Monitoring (AEMP)Benthic Invertebrates
Aquatic Effects Monitoring Program (AEMP) Technical Report, Ekati Diamond Mine (BHP Billiton, December 1999)
1 December 1999Report
This 1999 Aquatic Effects Monitoring Program (AEMP) technical report presents results from baseline and post-baseline monitoring of lakes and streams within the BHP Ekati Diamond Mine claimblock in the Northwest Territories. The report documents water quality, sediment quality, physical limnology, and biological parameters (phytoplankton, zooplankton, benthos, and fish communities) and concludes that the primary detected project effect in 1999 was elevated nitrate concentrations in Moose Lake and downstream waterbodies due to discharge from the Processed Kimberlite Containment Area.
Aquatic Effects Monitoring (AEMP)Aquatics Water Quality
Aquatic Effects Monitoring Program (AEMP) Technical Report, Appendices Volume II, Ekati Diamond Mine (BHP Billiton, December 1999)
1 December 1999Report
This is the 1999 Aquatic Effects Monitoring Program (AEMP) Technical Report Appendices Volume II prepared by Rescan Environmental Services for BHP Diamonds Inc., containing detailed taxonomic data, biomass measurements, statistical analyses, and diversity indices for phytoplankton, zooplankton, benthos, and fish communities from AEMP lakes and streams near the Ekati Diamond Mine in the Northwest Territories.
Aquatic Effects Monitoring (AEMP)Aquatics Benthic Invertebrates
Aquatic Effects Monitoring Program (AEMP) Technical Report, Ekati Diamond Mine (BHP Billiton, December 1999)
1 December 1999Report
This 1999 Aquatic Effects Monitoring Program (AEMP) Technical Report documents the second year of post-baseline aquatic monitoring at the BHP Ekati Diamond Mine, covering lakes, streams, and sediments within the mine claimblock. The report identifies elevated nitrate concentrations in waterbodies downstream of the Processed Kimberlite Containment Area as the primary project-related effect detected in 1999, while noting that most other environmental parameters remained within acceptable ranges with no major adverse ecosystem impacts observed.
Aquatics Aquatic Effects Monitoring (AEMP)Water Quality
Waste Rock Storage Area Seepage Survey, Ekati Diamond Mine (BHP Billiton, November 1999)
1999Report
BHP Diamonds Inc. 1999 Waste Rock Area Seepage Survey "Book #10" — transmittal November 17 1999 to Gordon Wray, Chairman, NWT Water Board. Same survey as "#13 1999" with additional appendix material: Appendix A Test Methodologies (ETL EnviroTest sub-contracted labs in Edmonton, Calgary, Saskatoon, Thunder Bay, Winnipeg, Grande Prairie; analytical methods for Beryllium, Boron, Cadmium, Calcium, Chromium, Cobalt, Copper, Iron, Sulphate by Ion Chromatography), and weekly leachate test results from February-October 1995 (pH, acidity/alkalinity as CaCO3, conductivity, sulphate SO4) on the Panda waste rock pile draining to Beartooth Lake, with pH-below-6.0 trigger threshold for seepage controls.
Waste Rock Geochemistry Water Quality
Waste Rock Storage Area Seepage Survey, Ekati Diamond Mine (BHP Billiton, November 1999)
1999Report
BHP Diamonds Inc. 1999 Waste Rock Area Seepage Survey transmittal letter (November 17 1999) and report to Gordon Wray, Chairman, NWT Water Board (Yellowknife). File reference 1616. Discusses the Panda waste rock pile drainage into Beartooth Lake, pH-6.0 trigger threshold for initiating seepage controls, and includes ETL EnviroTest (Edmonton/Calgary) Chain of Custody analytical reports with chemistry results for seepage samples.
Waste Rock Water Quality Monitoring Geochemistry
Operational Material Characterization and Monitoring of Weathering at Huckleberry (Huckleberry Mines Ltd., October 1999)
27 October 1999Presentation
Huckleberry Mines Ltd. presents operational material characterization and weathering monitoring procedures for their porphyry copper deposit, including ARD assessment of waste rock types, daily digging plans based on NPR and copper grade classification, and integrated water quality and materials handling monitoring protocols.
Waste Rock Acid Rock Drainage Geochemistry Development Plans
Waste Rock Storage Area Seepage Survey Correspondence, Ekati Diamond Mine (MVLWB, October 1999 to June 2002)
1999Report
2001 Rock Storage Area Seepage and Waste Rock Survey Report binder for the Ekati Diamond Mine (BHP Billiton). Includes correspondence with the Mackenzie Valley Land and Water Board (MVLWB — Laurie Cordell, Melody MacLeod), BHPB responses (Jim Millard, David Scott, Brent Murphy), 2001 Aquatic Effects Monitoring Program refinements, Panda and Misery seepage monitoring station maps and locations (SEEP-001 through SEEP-083 — Cujo Lake, Thinner Lake, King Pond Dam, Beartooth Lake, Bearclaw Lake, Beartooth waste rock storage area, Coarse Kimberlite Storage Area), and recommendations for granite vs. kimberlite seepage monitoring frequency.
Waste Rock Geochemistry Monitoring
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
King Pond Fish Community and Habitat Survey, Ekati Diamond Mine (BHP Billiton, September 1999)
1 September 1999Report
This 1999 fish community and habitat survey of King Pond at the Ekati Diamond Mine assessed the lake prior to its proposed use as a settling pond for the Misery Pit. The survey found a sparse, recently colonized Arctic grayling population of uniform age (four years) with high growth rates, along with limited overwintering habitat and poor stream connectivity to surrounding waterbodies.
Fish Habitat Aquatic Effects Monitoring (AEMP)Monitoring
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

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940 documents · Page 29 of 47