GAHCHO KUÉ PROJECT Waste & Explosive Management Plans Technical Sessions, 11 to 13 February 2014 Waste Management Plan Waste Management Framework PK = processed kimberlite; PKC = processed kimberlite containment. 2 Explosives Management Plan (EMP) An EMP covering the construction and operational periods of the mine was submitted to the MVLWB as a supporting document to the Type A Water License and the Land Use Permit applications. The EMP describes the management practices that will be followed for the storage and use of explosives and ammonium nitrate (AN) at the Mine. Purpose is to: • Describe the safe operating practices and procedures to be followed. • Address and mitigate environmental impacts, specifically with respect to water quality, wildlife, and fish. • Also address the potential for spills and the action plan to manage them in conjunction with the Spill Contingency Plan. 3 ERD - Quantity Distances Quantities of explosive products stored and manufactured onsite are subject to NRCan-ERD Quantity-Distances (Q-D). Distances are based on quantities to explosives storage/manufacturing, AN storage, Mill, Camp, Airstrip, other critical and/or inhabited areas, bulk fuel storage, and active work areas. Includes four (4) NR4 explosives magazines (containers) with required berms/barricades to store 3x32t of explosives, with the fourth magazine dedicated to detonating systems. Orica Canada Inc. , part of the one of the world largest explosives suppliers, is working in collaboration with De Beers and its EPCM team to compile/finalize site QD including the optimal NEQ (Net Equivalent Explosives) of the Emulsion Plant. 4 Products/Quantities Bulk explosive will typically be an Emulsion/ANFO Blend approximating 70/30 proportions Emulsion is a site manufactured, AN based, water resistant explosive. When blended with ANFO, there is still good water resistance to help ensure safe (fewer misfires/bootlegs) and complete combustion (including N and associated compounds) in potentially wet holes. • Note that most of the rock to be blasted is granite (> 85%) and that from regional experience, wet holes are most likely to occur with overburden or kimberlite. Note that AN by itself is not an explosive product when placed at sufficient distance from ERD classed high explosive products. Average annual requirement of AN during highest use period of 8 years is 13,200 t. 5 Ammonium Nitrate Storage Location Ammonium Nitrate Storage Location Main Storage Area Storage Locations: - Drainage through Fine PK Storage to Dyke L - Operating Storage Area Drainage to Area 4 7 Are within controlled drainage areas Any surface drainage goes to Water Management Pond (WMP) Pads are elevated and bermed to prevent excess runoff Pads are sloped to direct runoff to WMP Drainage distance to WMP is 1,000 m from Main Storage Area and 700 m from Operational Storage Area Ammonium Nitrate Storage Description of Storage: - AN is stored in double-lined 1-tonne tote bags designed for exterior storage Bags used on FIFO basis to avoid long term storage bag deterioration issues Bags are placed in 500 t piles, no more than 2 bags in height Tarps will be placed over piles to mitigate snow accumulation as required Allows for inventory control accuracy inventory will be managed by Orica Spill Contingency Plan: - Bagging each tonne individually limits size of potential spill When compared to bulk handling and storage, this method effectively limits potential for AN release Should a bag break - The area will be cleaned to the extent possible, salvaged material will be taken to the emulsion plant for use Any AN contaminated gravel can be mixed in with ANFO product and used. 8 GAHCHO KUÉ PROJECT WILDLIFE Technical Sessions, 11 to 13 February 2014 Mackenzie Valley Environmental Impact Review Board Wildlife Plan Development Highlights December 2010 EIS submitted to MVEIRB including a wildlife monitoring plan May 2012 Technical sessions July 2012 Wildlife Monitoring Plan Working Group MVEIRB, AANDC, ENR, DKFN, LKDFN,NSMA, NWTMN, TG, YKDFN September 2012 Community and regulatory workshop October 2012 Revised wildlife monitoring plan submitted July 2013 Panel decision report: Wildlife Effects Monitoring Program (WEMP) Wildlife and Wildlife Habitat Protection Plan (WWHPP) Caribou Protection Plan (CPP) October 2013 Ministerial decision November 2013 Land use permit application submitted with WEMP, WWHPP with CPP 2 Panel Decision Report – Wildlife Measures and Commitments Requirement Document Measure 1: • Minimize impacts and ZOI of mine • Caribou Protection Plan • Adaptive Management Framework WWHPP Measure 2: WWHPP • Minimize effect of road on caribou movement and migration • Monitor caribou presence, movement and behaviour along road • Ensure wildlife plans address effects Measure 3: • GNWT & AANDC - implement cumulative effects framework • Monitor project effects • Report contribution to cumulative effects 3 WEMP WWHPP Panel Decision Report – Wildlife Measures and Commitments Requirement Document Follow-up Program should include, but is not limited to: • Monitor the ZOI • Adjust mitigation to minimize ZOI • Monitor Access Road for: -caribou presence -caribou movement and behaviour • Describe action levels for additional mitigation/monitoring • Incorporate baseline and traditional knowledge WEMP & WWHPP 4 Comparison of Wildlife Plans WWHPP WEMP Mitigation and Monitoring Monitoring Site Scale Regional Scale Direct Effects Indirect Effects Monitoring Programs: • Wildlife Sightings Log • Site Surveillance • Direct Habitat Loss • Waste Management • Winter Access Road • Wildlife Incidents Monitoring Programs: • Barren-ground Caribou • Grizzly Bear • Wolverine • Raptors • Upland Birds 5 Ongoing Wildlife Monitoring • Site Surveillance • Wildlife Sightings Log • Winter Access Road Monitoring • Caribou Behavioural Monitoring • Wolverine Hair Snag Program • Grizzly Bear Hair Snag Program • Peregrine Falcon Monitoring Program • Waterfowl Monitoring • Support for ENR led range management planning including aerial surveys • Support for ENR led caribou harvest modelling and collar analysis • Support for ENR wolf den monitoring 6 Ongoing Wildlife Mitigation • Minimize mine footprint • Discourage bird nests on infrastructure • Progressive reclamation • No staff hunting or fishing • Maintain downstream flows • Electronic signage warning of hazards • Dust suppression • Wildlife signage • Waste management • Isolate physical and chemical hazards • Environmental sensitivity training for staff • Spill management • Wildlife deterrents • Speed limits • No harassment or feeding of wildlife • Skirting around buildings • Wildlife has the right-of-way 7 Adaptive Management and Reporting Adaptive Management • Adaptive Management Plan • Environment Coordinator at site • Aboriginal Environmental Monitor at site • Annual Mitigation Audits • Commitment to continual improvement Reporting • Immediate and mandatory reporting of wildlife incidents • Weekly summary of wildlife observations • Annual wildlife summary report • 3-5 year comprehensive wildlife report • Regular engagement with communities • Ni Hadi Yati 8