Great Slave Lake Remediation Project COMMUNITY ENGAGEMENT AND APPLICATION OF INNOVATIVE REMEDIATION AND RESTORATION Breadmore, R 1 Hoyt, J 2 , Wilson, J 1 • 1 Aboriginal Affairs and Northern Development Canada – Contaminants and Remediation Directorate • 2 Public Works and Government Services Canada 2016 RPIC Federal Contaminated Sites National Workshop Montreal, QC April 25-27, 2016
Acknowledgments INAC Akaitcho Dene • Northern Contaminated Sites Program • Lutsel K’e Dene First Nation • Contaminants and Remediation Division • Deninu Kue First Nation • Yellowknives Dene First Nation • Governance and Partnerships PWGSC NWT Métis • Fort Resolution Métis Council • Northern Contaminated Sites Group Tlicho Government ARCADIS Rowe’s Construction Ltd
Presentation Overview • Site location and history • Innovative remediation and restoration approaches • Engagement strategies • Project Status • Wrap up and questions
GSL Project – Site Locations
Outpost Island Mine History • gold/copper/tungsten • operated sporadically between 1935 and 1952 • 1955 fire destroyed most structures
Blanchet Island Mine History • cobalt and nickel • staking began in 1960s • exploration and mining until 1970-71
Wilson Island • Former gold exploration site • Mineral assessment work started in 1916! • Exploration activities 1920-1930s Waldron River • Former copper exploration site • First claims staked in 1939 • Exploration in 1940s and 1960s 7
Contaminated Site Legacies • Mine openings (2 shafts, adit and trenches) • Exposed tailings and arsenic-rich waste ore • PHC and metal impacted soils/sediments • Hazardous materials • Unfired blasting explosives • Site infrastructure • Metal debris 8
Outpost Island Mine Remediation North Bay Stabilization Challenge SOLUTION • Tailings pulled back from the bay above water line • Rock armour to stabilize slope and prevent continued erosion and sediment transport
Outpost Island Mine Remediation Shafts #1 and #2 Challenge 10
Outpost Island Mine Remediation Shafts #1 and #2 SOLUTION Site preparation Steel I-beam support Rock armour cap and vent Polyurethane foam plug
Outpost Island Mine Restoration Re-Vegetation Challenge 12
Outpost Island Mine Restoration Revegetation SOLUTION Area sloped and graded at remediation Local Vegetation Being Planted
Blanchet Island Mine Remediation Mine Adit Closure Challenge 14
Blanchet Island Mine Remediation Mine Adit Closure SOLUTION Rock back fill of adit Engineered cap Consolidated waste rock and impacted oils
Blanchet Island Mine Remediation Beach Head Restoration Challenge Ore concentrate at abandonment Abatement program (2010) 16
Blanchet Island Mine Remediation Beach Head Restoration Log in fill as SEC SOLUTION Impacted soil excavation Organics top layer for future re-veg
Wilson Island and Waldron River Mine Opening Remediation CHALLENGE 18
Wilson Island and Waldron River Mine Opening Remediation SOLUTION Polyurethane foam plugs 19
Community Engagement Strategy • Community Engagement Plan is a regulatory requirement -> Plan and strategies were updated in 2015 • Project update meeting in February 2015 -> led to Site Blessing in June 2015 • Majority of site workers were from local communities • Elders and Land and Water Tour in September • Project close-out celebration in December 2015 • Community based monitoring training in Q4 2015-16 • Long Term Monitoring Plan (commencing in 2016) will be community-based
Aboriginal Stakeholders: Akaitcho Dene (Interim Measures Agreement) Yellowknives Dene First Nation (YKDFN) � • Lutsel K’e Dene First Nation (LKDFN) • Deninu K’ue First Nation (DKFN) NWT Métis (Interim Measures Agreement) • Fort Resolution Métis Council (FRMC) Tlicho (Tlicho Final Agreement) • Tlicho Government
Executing Community Engagement PROJECT EXECUTION Summer 2015 Summer 2013 ● Site Blessing and 2014/15 Winter 2015 ● Site Tour Tour Spring 2013 ● Project Closeout ● Community ● Elders and Board ● Project Planning ● Community Celebration Update Meetings Site Tour Briefing ● Local Workforce
Project Update Meeting February 2015 • Update Akaitcho stakeholders on the progress of GSL Project and plans for upcoming remediation work • Received input on how communities could be involved > Site Blessing ceremony >Local workforce employment
Site Blessing June 2015
Elders and Board Tour September 2015
Project Close-out Celebration Elders Committee Meeting Community feast and presentations
Project Closure Celebration ! 27
Faces of the Great Slave Lake Remediation Project AANDC-PWGSC ARCADIS Rowe’s-Outcome Mackenzie Valley Land and Water Board 28
Faces of the Great Slave Lake Remediation Project Site Crew Community leadership and technical resources Community Elders and Youth 29
Project Take-Aways • Obtain and Maintain Social Licence with communities • Engage stakeholders at all stages of project (planning-remediation-closure) • Allow Remediation Contractor freedom and flexibility facilitates to design and execute innovative remediation and restoration strategies • Take time and effort to celebrate project completion • Recognize the efforts of all those involved
QUESTIONS ? Thank you
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