MV2014X0002 Great Slave Lake Project • Outpost Island Mine site • Blanchet Island Mine site • Copper Pass Mine Site
GSL Project – Site Proximity GSL Project – Site Proximity 129km 113km 113km 93km Yellowknife
Site Background Site Background Outpost o copper gold and tungsten (1935 1952) o copper, gold and tungsten (1935-1952) o West Island – primary mining activities o East Island – minimal activities Blanchet o cobalt and nickel showing in 1968 o cobalt and nickel showing in 1968 o open-cut and adit developed in 1969 o small scale mining until 1970 Copper Pass o nickel mine with original claims staked by g y Cominco in 1940 o Copper Pass Mines Ltd in 1969
Outpost - Site Maps Site Maps Outpost
Outpost Areas of Concern Outpost Areas of Concern 129 113 113 93
Outpost - Areas of Concern Outpost - Areas of Concern 129 93
Outpost - mine openings Outpost mine openings
Outpost – tailings/waste rock tailings/waste rock Outpost North Bay
Outpost Tailings/Waste Rock Outpost Tailings/Waste Rock Decision Process (risk based) ( ) . Draft HHERA and RAP finalized through g FCSAP expert support . Risk assessment indicates low risk with the existing deposit; sediments are locally impacted . Technical options considered existing risk vs removal vs managing in place
Outpost Tailings/Waste Rock Outpost Tailings/Waste Rock Preferred Option Selection p • Technical options tabled at RAP Options p p Workout: 1. base case (do nothing/leave as is) ( g ) 2. consolidate and re-slope and 3. Consolidate, re-slope and cover , p • Coming out of RAP workout, 2 “acceptable options” (1 and 2) p ( ) • July site tour – further examination
Outpost Tailings/Waste Rock Outpost Tailings/Waste Rock RAP Finalization RAP Finalization . Site tour feedback from communities Site tour feedback from communities (concerned with North Bay, consolidate exposed tailings and stabilize the slope is exposed tailings and stabilize the slope is best option) . Elders requested engineered assessment of q g breakwall at lip or North Bay (TM issued) . DKFN technical review suggested additional gg effort on cover (re-veg)
Outpost Tailings/Waste Rock Outpost Tailings/Waste Rock • Preferred option “consolidate and re-slope” Preferred option consolidate and re slope is deemed effective mitigation -> removes exposed tailings from wave p g action in bay -> stabilizes the tailings/waste rock mix g (3:1 slope, 300mm cover, above water line) -> ECS measures will protect cover CS easu es p otect co e -> preferred option = “natural cover” -> bio-engineering test plots (community- > bio engineering test plots (community based
O tpost Tailings/Waste Rock Outpost Tailings/Waste Rock RAP considered Option 3 (consolidate) RAP considered Option 3 (consolidate) -> no site source to cover liner -> no site source to cover liner -> Blanchet source not suitable (cobble) -> blasting and processing would be required > blasting and processing would be required -> costs would exceed benefit achieved
Outpost Tailings/Waste Rock Outpost Tailings/Waste Rock LUP vs LUP and WL LUP vs LUP and WL . additional admin effort (no concern) additional admin effort (no concern) . no formal WL close-out process (concern) -> monitoring effort (and cost) beyond our > monitoring effort (and cost) beyond our short (5 yr) and long (TBD) monitoring plan -> impacts beyond GSL Project (NCSP) > impacts beyond GSL Project (NCSP) Q. Can we tie Monitoring to LUP ? Q C Q. Can we tie Monitoring Plan to commitment ti M it i Pl t it t letter under NWTWA ?
Outpost Tailings/Waste Rock g
l+I Indian and Northern Affaires indiennes Affairs Canada et du Nord Canada - Canad a
Blanchet Island Blanchet Island – Site Map Site Map
Blanchet ore – Beach Area Blanchet ore Beach Area Before - Summer 2010 Summer 2010 After - Fall 2010
Blanchet mine openings Blanchet mine openings Rail terminus Adit
Blanchet ore – Mine Area Mine Area Blanchet ore Spilled Ore
Copper Pass – Site Map Copper Pass Site Map
Copper Pass - Site Map Copper Pass Site Map
Copper Pass – Site Map Copper Pass Site Map
Site Aspects Site Aspects Mine Component Outpost Blanchet Copper Pass 4 (2 shafts 2 4 (2 shafts, 2 Mi Mine Openings/ O i / 1 (adit) 6 (trenches) Surface Trenches raises) 2 6 7 Buildings 129 Non-Hazardous 130m 3 75m 3 16m 3 Refuse Hazardous Waste 0.5m 3 minimal 3,070L 113 113 Materials TBD Mixed Tailings/ 9,000m 3 TBD Waste Rock 93 25m 3 120m 3 TBD Ore 400m 3 1,000m 3 4,800m 3 Waste Rock 2,200m 3 5,000m 3 TBD Metal Impacted Soil 23m 3 50m 3 71m 3 PHC Impacted Soil Surface Water and TBD TBD TBD Sediments
Outpost Mine – Remedial Options Evaluation Fort Resolution Fort Resolution June 13-14, 2013 Mine Component Option 1 Option 2 Option 3 Option 4 Option 5 Mine Openings Leave as is Retrofit Caps and Raise Fill Upgrade Existing Concrete “HYBRID” in in Caps and Seal Main Raise Caps and Seal Main Raise -> Concrete Cap > Concrete Cap Shaft #1 -> foam for raise and Shaft #2 Buildings Leave as is Demolish and Burn Non-Hazardous Leave as is Consolidate and Transport Consolidate and Place in Refuse Off-Site On-Site Landfill Hazardous Waste Leave as is Consolidate and Transport Materials Off-Site Mixed Tailings/Waste Leave as is Consolidate and Re-Slope Consolidate, Re-Slope and Rock Cover Waste Rock Leave as is Deposit in Surface “HYBRID” Excavations -> leave as is -> use if needed if d d Metal Impacted Soil Leave as is Consolidate and Transport Capping Off-Site PHC Impacted Soil Leave as is Off-Site Disposal On-Site Disposal On-Site Treatment Surface Water and Leave as is Long-Term Monitoring Sediments
Blanchet Mine – Remedial Options Evaluation p Fort Resolution June 13-14, 2013 Mine Component Option 1 Option 2 Option 3 Option 4 Option 5 Adit Leave as is Backfill w borrow Backfill w waste Foam Plug rock Building Leave as is Demolish and Burn Structures R f Refuse L Leave as is i C Consolidate and lid t d Consolidate and C lid t d transfer off-site place in on-site landfill Waste Rock Leave as is Re-slope Re-slope and cover Ore Concentrate Leave as is Consolidate and Consolidate and off-site disposal on-site disposal Metal Impacted Leave as is Cap w granular Excavate and place Soil material under low permeability cover permeability cover PHC Impacted Leave as is Off-site disposal On-site disposal On-site treatment Soil Surface Water and Leave as is Long term Sediments monitoring
Copper Pass Mine – Remedial Options Evaluation F Fort Resolution t R l ti June 13-14, 2013 Mine Option 1 Option 2 Option 3 Option 4 Option 5 Component Surface Leave as is Fencing and/or Berms g Backfilling g Trenches (and treat water) Ore Leave as is Grading and Covering Consolidation in Trenches and Capping Waste Rock Waste Rock Leave as is Leave as is Grading Grading Consolidation in Consolidation in Trenches and Capping Metal Impacted Leave as is Consolidation in Soils Trenches and Capping PHC Impacted Leave as is Off-Site Disposal On-Site Disposal On-Site Soils Treatment Structures Leave as is Demolish and Burn Non-Hazardous Leave as is Consolidate and Consolidate and “HYBRID” Materials Manage Off-Site Dispose in an On-Site -> drums/steel -> drums/steel off-site Landfill off-site -> clean wood burned -> burn clean wood
GSL Project Stakeholders GSL Project Stakeholders Copper Outpost Blanchet Pass Pass � � � AKDFN Lutsel K’e 129 � � � Deninu K’ue 113 113 � � � � � � Yellowknives Yellowknives 93 � � NWTMN � Tlicho
GSL Project Bundle GSL Project Bundle Outpost Blanchet = NCS Class 1 Outpost, Blanchet = NCS Class 1 Copper Pass = NCS Class 2 bundling 3 sites together: g g = cost efficiency = facilitates FCSAP funding = facilitates FCSAP funding
GSL Procurement Strategy GSL Procurement Strategy • Tender project bundle together Tender project bundle together • Bidders’ Tour (Sept 17-18 th ) • Post - Winter 2013 P t Wi t 2013 • Award – Spring 2014
Outpost mooring Outpost mooring Aircraft Aircraft Barges g West Island West Island
Blanchet mooring Blanchet mooring Blanchet mooring Blanchet mooring Contaminated ore Contaminated ore landing
Copper Pass – Site Access
GSL Work Completed to Date GSL Work Completed to Date • Stakeholder ID/ Engagement Plan • Public meetings / Executive updates • FCSAP expert support (HHERA/RAPs) • TK Study (mapping exercise, recon,survey) • RAP Options Workout • Mine Hazard signage • Supplemental sampling (seds, WQ) pp p g ( ) • Archaeological dbase access (PWNHC) • Blanchet borrow source investigation g • Archaelogical survey - underway
Community Engagement
Signs and Elders/Board Tour Signs and Elders/Board Tour
Blanchet Borrow Source Blanchet Borrow Source Investigation
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