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Agnico Eagle Mines Meadowbank Modification - In-Pit Tailings Disposal (149826)
Proposal Status: Conformity Determination Prepared
Project Overview
Type of application: Amendment
Proponent name: Manon Turmel
Company: Agnico Eagle Mines Ltd.
Schedule:
Start Date: 2022-07-01
End Date: 2026-12-31
Operation Type: Annual
Project Description:
Agnico Eagle currently places all tailings at the Meadowbank Mine in the Meadowbank Tailings Storage Facility (within the former Second Portage Lake northwest dewatered arm), where tailings have been deposited sub-aerially as slurry and water from the ponds reclaimed during operation. Since mining began, Agnico Eagle has continued to evaluate alternative options for tailings deposition, in order to ensure that best practices are followed and to ensure appropriate long term planning to optimize the site footprint. In 2016, the Meadowbank Dike Review Board (the MDRB), an Independent Geotechnical Expert Review Panel established in accordance with Type A Water Licence No: 2AM-MEA1525, supported the use of early in-pit tailings disposal as an appropriate alternative in addition to current practices at Meadowbank Mine. Specifically, in-pit disposal of tailings has advantages with respect to health and safety, quality of life, water, air, capital cost, technology, natural hazards and adaptability. The MDRB accepted that in-pit disposal would be recognized as the best available technology. As a result, Agnico Eagle is now proposing to dispose of tailings in three pits, Portage Pit A, Portage Pit E, and Goose Pit, all within the footprint of the assessed and approved Meadowbank Mine. The In-pit tailings disposal in the Portage and Goose pits will not increase the project footprint, and will occur entirely within existing pits that have already been impacted by ore extraction. This method of tailings disposal will require the continued use of various existing project components, including the following: •pits and dikes to segregate operations from Third Portage Lake and Second Portage Lake; •the reclaim water barge; •the tailings deposition barge; •the reclaim water treatment plant; and •tailings thickener (this is under evaluation). The modification will also require an extension of the slurry and reclaim water piping. Agnico Eagle confirms that based on its engagements to date, its understanding is that this modification can proceed in accordance with existing approvals. Agnico Eagle has not identified any amendments to Project Certificate No. 4 or Type A Water Licence No. 2AM-MEA1525 in order to proceed with the In-pit Tailings Disposal modification. Before proceeding, the In-pit Tailings Disposal modification will require a formal Modification notification to the Nunavut Water Board pursuant to the conditions of the water licence. The current planned timeline for commencing the in-pit deposition of tailings is April 2018. Agnico Eagle is committed to proceed with this activity in full compliance with its regulatory obligations and with the obligations and guidance set out in the Keewatin Regional Land Use Plan. Agnico Eagle's self assessment is that the proposed In-Pit Tailings Disposal modification is not a significant modification under NuPPAA, in particular when taking into account the s. 90 factors. The modification is located within the area of impact previously assessed, with no additional historical, cultural and archaeological significance. Agnico Eagle considers the nature, magnitude, complexity, probability, frequency, reversibility and cumulative impacts are unaffected as outlined in Cumberland (2005) , which previously conformed with the applicable land use plan as determined by NPC and was reviewed by the NIRB.
Summary of Modifications:
There is currently a tank farm enclosing a 5.6 ML fuel tank on‐site at the Meadowbank Mine, which has been in service since 2009. Agnico Eagle is proposing to install a new 3.3 ML tank next to the existing tank and modifying the secondary containment area so that the two tanks will share the new containment space. The additional fuel tank will provide flexibility to the Mine during the caribou migration when the All‐weather Access Road is closed, and would result in fewer fuel convoys during the caribou migration.
Personnel:
Persons: 800
Days: 365
Project Map
List of all project geometries:
ID Geometry Location Name
9114 polygon
9115 polyline snc643541_mod_topo_dem_2017_l_170503
9116 polyline snc643541_mod_topo_dem_2017_l_170503
Planning Regions:
Kitikmeot
Affected Areas and Land Types
Settlement Area
Keewatin Planning Region
Project Land Use and Authorizations
Project Land Use
Mine Development
Licensing Agencies
NIRB: Approval of the Meadowbank Mine Project
KivIA: Surface Production Lease; Construction, operation and closure of the mine on Inuit owned land
DFO: Authorization to dewatering, excavate, dike and road footprint (east and central dike) and in water placement of course material in Second Portage Lake and Third Portage Lake
DFO: Letter of Approval- Authorization for deposition of tailings in TIA. Approval of Compensation Plan
NWB: Type A Licence
Other Licensing Requirements
No data found.
Material Use
Equipment
Type Quantity Size Use
Excavator 1 n/a Loading materials for construction
Haul Truck 2 n/a move material as needed from construction activity
Dozer 1 n/a Placing material onto fuel farm area
Service Truck Fuel 1 n/a Resupply equipment with fuel, lube, etc.
Fuel Use
Type Container(s) Capacity UOM Use
Diesel 1 3300000 Liters on-site fuel needs
Hazardous Material and Chemical Use
Type Container(s) Capacity UOM Use
No records found.
Water Consumption
Daily Amount (m3) Retrieval Method Retrieval Location
0
Waste and Impacts
Environmental Impacts
The on-site fuel farm addition is small in size and within the existing mine footprint / disturbance area. All domestic solid waste and waste oil generated at the Construction site is disposed of at Meadowbank site and handled as per approved management plans. All water from the Construction site will be controlled and contained to ensure no adverse effects to the surrounding environment.
Waste Management
Waste Type Quantity Generated Treatement Method Disposal Method
No data found.
Category: Application form attachment - Project description
Recieved: 2017-12-21
Originator: Manon Turmel
Public Registry ID: 20296
Document Size: 233.34 Kb
Category: Application form attachment - Project description
Recieved: 2022-05-26
Originator: Manon Turmel
Public Registry ID: 20303
Document Size: 392.31 Kb
Category: Application related document - Conformity Determination Letter
Recieved: 2018-03-22
Originator: Goump Djalogue
Public Registry ID: 20302
Document Size: 177.97 Kb
Category: Application related document - Conformity Determination Letter
Recieved: 2022-06-22
Originator: Goump Djalogue
Public Registry ID: 20456
Document Size: 262.63 Kb
Category: Application related document - Other document
Recieved: 2018-01-25
Originator: Goump Djalogue
Public Registry ID: 20297
Document Size: 531.45 Kb
Category: Application related document - Other document
Recieved: 2018-02-01
Originator: Goump Djalogue
Public Registry ID: 20298
Document Size: 215.43 Kb
Category: Application related document - Other document
Recieved: 2018-03-22
Originator: Goump Djalogue
Public Registry ID: 20299
Document Size: 162.54 Kb
Category: Application related document - Other document
Recieved: 2018-03-22
Originator: Goump Djalogue
Public Registry ID: 20300
Document Size: 403.33 Kb

KEEWATIN QUESTIONAIRE

GENERAL
Environmental Protection:
s2.4.9: The applicant undertakes to prevent any new occurances of pollution, garbage and contamination at the site of the development.
YES

Removal of Fuel Drums:
s2.4.9: The applicant undertakes to remove all drums safely from the site and dispose of the drums in a safe manner.
YES

New Site Restoration and Clean Up:
s2.4.15 and Appendix 2,s1: The applicant undertakes to clean up the site and restore the site to its natural condition to the greatest extent possible.
YES

Old Site Restoration and Clean Up:
s3.13.2: The applicant undertakes to clean up the site and restore the site to its original condition to the greatest extent possible, including any work required due to the applicant's action prior to this application.
YES

Low Level Air Flights:
s5.4.4 and Apendix 2, s3: Will the applicant avoid low-level flights?
YES

Caribou Protection Measures:
s2.4.6 and Appendix 3: Will the applicant comply with the Caribou Protection Measures outlined in section 2.4.6 and in Appendix 3?
YES

Caribou Water Crossings:
Will the applicant avoid, between May 15 and September 1, to construct any camp, cache any fuel or conduct s2.4.6 and map: any blasting within 10 km of any Designated Caribou Water Crossing identified
YES

ARCHEOLOGY
Reporting of Archaeological Sites:
s4.4.3 and Appendix 3, s2 and s8: Will the applicant immediately report the discovery of all suspected archaeological sites to the Government of Nunavut?
YES

MINING DEVELOPMENT
Mining Development:
s3.4.4: Is the proposal for mining development?
YES

PARTICULAR AREAS
Game Sanctuary:
s2.4.1: Is the project proposal located, in whole or in part, within the Thelon Game sanctuary?
NO

Bird Sanctuary:
s2.4.1: Is the project proposal located, in whole or in part, within the Mc Connell River Migratory Bird Sanctuary, the Harry Gibbons Migratory Bird Sanctuary or, the East Bay Migratory Bird Sanctuary
NO

Southern Southampton Island and Coats Island:
s3.4.5: Is the project proposal located, in whole or in part, in southern Southampton Island and Coats Island?
NO
If yes, does the project proposal involve hydrocarbon exploration?
YES
Municipal Lands:
s1.4.3: Is the project located, in whole or in part, within municipal boundaries?
NO

PARTICULAR ACTIVITIES

Uranium Development and Mining:
s3.4.5, s3.4.6: Does the project proposal involve either uranium development or uranium mining?
NO


New Land Use:
Does the project proposal involve a new type of land use never engaged in before in the region?
NO

Code of Good Conduct for Land Users:
Appendix 2: The applicant undertakes to adhere to the Code of Good Conduct at all times.
YES