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766 documents · Page 33 of 39

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Baseline Information on Ground Water, EIS Additional Information Response (Section 9, 806d) (BHP Billiton, December 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
This document responds to a panel's request for additional information on baseline ground water data and monitoring plans for the proposed BHP Diamond Mine at Lac de Gras. The proponent describes low predicted groundwater inflows based on permafrost presence and low hydraulic conductivity of granite bedrock, with plans for periodic monitoring of actual pit dewatering rates rather than a comprehensive regional monitoring program.
Water Quality Monitoring Development Plans Waste Rock Regulatory
Waste Management Plans, Additional Information Response to Panel Information Request 603a, Ekati Diamond Mine (BHP Billiton, December 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
This document is a detailed response to a regulatory panel's information requests regarding waste management plans for the Ekati Diamond Mine, specifically addressing tailings management, water treatment facilities, nitrogen contamination from ANFO explosives, dam failure scenarios, and waste rock drainage control. The response includes engineering designs for a Long Lake tailings facility with sequential cells, water clarification methods tested during bulk sampling, contingency plans for dam failures, and management practices to minimize ammonia losses from explosive use.
Waste Rock Wastewater Water Quality Regulatory
Compensation, EIS Additional Information Response to Panel Question 14 (BHP Billiton, December 1995)
~1995Report
Approximate date — inferred from filename
BHP outlines procedures for compensating commercial and subsistence land users affected by mine exploration activities, including a claims process with discussion, mitigation measures, and good-faith negotiation or independent mediation if financial losses are claimed.
Development Plans Correspondence Traditional Knowledge Regulatory
NWT Diamonds Project Environmental Impact Statement, Additional Information Response (BHP Billiton, December 1995)
1 December 1995Regulatory Filing
BHP's response to the Review Panel's requests for additional information regarding corporate structure, environmental management systems, and spills during NWT Diamonds Project exploration operations. The document details BHP Diamonds Inc.'s relationship to parent company BHP, Environmental Management System implementation, and documents ten unauthorized discharges that occurred during summer 1994 exploration activities at the Koala site.
Development Plans Environmental Agreement Regulatory Water Quality Waste Rock
Fish Habitat Management Plan, EIS Additional Information Response (BHP Billiton, December 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
BHP Diamonds Inc. responds to a Panel request regarding fish habitat management and compensation for the Ekati project by detailing negotiations with the Department of Fisheries and Oceans on habitat loss from lake dewatering and tailings/waste rock disposal, including multiple reports quantifying spawning habitat in affected lakes and compensation approaches based on reproductive habitat and whole lake replacement values.
Fish Habitat Aquatics Development Plans
Sedimentation Ponds Preliminary Design, NWT Diamonds Project (EBA Engineering, December 1995)
~1995Report
Approximate date — inferred from filename
This preliminary design report documents the planned sedimentation pond systems for four kimberlite pit mines (Panda/Koala, Misery, Fox, and Leslie) at the NWT Diamonds Project. The ponds are designed to impound turbid water and soft lake sediments from pit dewatering and to provide settling basins during mine operation, with specific designs for valley ponds and lake basin ponds incorporating pervious dikes, impervious dams, and frozen core structures adapted to permafrost conditions.
Development Plans Wastewater Water Quality Regulatory
Baseline Information on Permafrost, EIS Additional Information Section 8 (BHP Billiton, 1995)
~1995Regulatory Filing
Approximate date — inferred from filename
This document responds to a regulatory panel request for baseline information on permafrost conditions at the BHP Diamonds (Ekati) project. It describes existing permafrost data collected since 1993 through boreholes, thermistor cables, and ground-penetrating radar surveys, confirms permafrost thickness of 230–280 m, identifies future geotechnical investigation needs for secondary structures, and documents minor thermally induced ground instability encountered during exploration and construction.
Monitoring Development Plans Regulatory Closure & Reclamation
Draft Procedures for Public Hearings, Comments (GNWT, November 1995)
21 November 1995Letter
The Government of the Northwest Territories submits comments on the BHP Diamonds Mine Environmental Assessment Panel's draft procedures for public hearings, requesting clarification on Yellowknife hearing arrangements, technical session participation, pre-hearing notice periods, questioning time limits, and suggestions for policy sessions and wrap-up sessions.
Regulatory Correspondence Development Plans Environmental Agreement
Comments on the Draft Procedures for Public Hearings, BHP Diamond Mine Environmental Assessment (BHP Billiton, November 1995)
20 November 1995Letter
BHP Diamonds Inc. expresses support for the Draft Procedures for Public Hearings for the BHP Diamond Mine Environmental Assessment and requests opportunity for the Proponent to respond to questions and present alternative viewpoints during proceedings.
Correspondence Development Plans Regulatory
Comments on the Draft Procedures for Public Hearings (Environment Canada, November 1995)
20 November 1995Letter
Environment Canada approves the Draft Procedures for Public Hearings issued by the BHP Diamond Mine Environmental Assessment Panel and requests that technical session subject areas be identified and shared with intervenors promptly.
Correspondence Regulatory Development Plans
Comments on Draft Procedures for Public Hearings, BHP Diamond Mine (NWT Chamber of Mines, November 1995)
20 November 1995Letter
The NWT Chamber of Mines expresses agreement with draft procedures for public hearings on the BHP Diamond Mine project, confirming they align with the Environmental Assessment and Review Process Guidelines Order and the Panel's Terms of Reference.
Correspondence Development Plans Regulatory
Comments on the Draft Procedures for Public Hearings (Natural Resources Canada, November 1995)
14 November 1995Letter
Natural Resources Canada expresses agreement with the Draft Procedures for Public Hearings issued by the BHP Diamond Mine Environmental Assessment Panel, supporting the decision to not permit cross-examination.
Correspondence Regulatory Development Plans
Comments on the Draft Procedures for Public Hearings (NWT Federation of Labour, November 1995)
10 November 1995Letter
The Northwest Territories Federation of Labour submits a letter to the BHP Diamond Mine Environmental Assessment Panel Chair criticizing draft hearing procedures as inadequate, specifically objecting to the 15-minute time limit for presentations, the non-transparent participant ordering process, and the denial of cross-examination rights for the proponent.
Correspondence Development Plans Regulatory
Comments on the Draft Procedures for Public Hearings, BHP Diamond Mine Environmental Assessment (DIAND, November 1995)
10 November 1995Letter
DIAND provides comments on the draft procedures for public hearings for the BHP Diamond Mine Environmental Assessment Panel, expressing general support while recommending improvements to accommodate third-party responses, question periods, and clarification between general and technical sessions.
Correspondence Development Plans Regulatory
Archaeological Investigations for BHP Diamonds Inc. (Points West Heritage Consulting, November 1995)
1995Report
1995 Archaeological Investigations for BHP Diamonds Inc. (Northwest Territories Archaeologist's permit 95-813) by Points West Heritage Consulting Ltd. for the Federal Environmental Assessment Panel of the BHP Diamonds Inc. NWT Diamonds Project, Yellowknife. Covers archaeological site survey of proposed quarry, mitigation recommendations, sites LdNs-1, LdNs-2, LdNs-3, LdNs-4 (lithic scatters near Pointe de Misère, Lac du Sauvage esker) with descriptions of unifaces and surface finds on lake/creek terraces.
Development Plans Traditional Knowledge Yellowknives Dene Regulatory
Submission to the BHP Diamond Mine Environmental Assessment Panel, Business Letters in Support (Committee for Support of BHP, November to December 1995)
1995Regulatory Filing
Submission to the BHP Diamond Mine Environmental Assessment Panel (Letha MacLachlan, Chair) by the Committee for Support of BHP, received February 1 1996, bundling business letters of support from Northwest Territories residents collected November-December 1995. Statements support immediate proceeding of the BHP NWT diamond mine project on grounds of Northern employment and supplier benefits committed in the EIS.
Regulatory Development Plans Correspondence Environmental Agreement
Comments on the Draft Procedures for Public Hearings, Northern Environmental Coalition (Sierra Legal Defence Fund, November 1995)
1995Regulatory Filing
Sierra Legal Defence Fund (Larry A. Reynolds) submission to the Federal Environmental Assessment and Review Office (FEARO, Yellowknife), November 20 1995, on behalf of the Northern Environmental Coalition (NEC). Discusses procedural concerns for the BHP Diamonds Inc. NWT Diamonds Project public hearings — adequacy of 15-minute scientific/technical presentation time limits (FEARO precedent for longer), Section 1 of Draft Procedures on detailed questioning, comparison with Regulatory Advisory Committee (RAC) "Procedures For Federal Panel Reviews" subcommittee drafting (no time limit on questioning), missing directions to government departments, and natural-justice/procedural-fairness commitments.
Regulatory Correspondence Development Plans Environmental Agreement
Table of Contents, Submissions on Draft Procedures for Public Hearings (Multiple parties, November 1995)
~1995Report
Approximate date — inferred from filename
A table of contents listing submissions received for draft procedures for public hearings, submitted by various government agencies, industry groups, Indigenous organizations, and environmental stakeholders between November 15-21.
Environmental Agreement Regulatory Traditional Knowledge
Review of NWT Diamonds Project Environmental Impact Statement, Socio-economic Impacts on Women (Status of Women Council of the NWT, October 1995)
23 October 1995Regulatory Filing
The Status of Women Council of the N.W.T. submits a comprehensive review of the BHP Diamond Mine Environmental Impact Statement focusing on socio-economic impacts on women, identifying deficiencies in the EIS and providing detailed recommendations for employment, training, family support, and community engagement based on consultations with approximately 80 women from five surrounding communities.
Development Plans Environmental Agreement Traditional Knowledge
Conformity Report, NWT Diamonds Project Environmental Impact Statement (GNWT, October 1995)
23 October 1995Regulatory Filing
The Government of the Northwest Territories' conformity review of the BHP NWT Diamonds Project Environmental Impact Statement, identifying major deficiencies in traditional knowledge integration, environmental management plans, spatial boundaries, wildlife assessment, socio-economic impacts, and monitoring programs, while concluding that the EIS can be brought into compliance relatively quickly through additional analysis and field work results.
Development Plans Regulatory Traditional Knowledge

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766 documents · Page 33 of 39