Remediation of a Former Unofficial Dumpsite Wilmer Marsh ... · Remediation Technologies Symposium...
Transcript of Remediation of a Former Unofficial Dumpsite Wilmer Marsh ... · Remediation Technologies Symposium...
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Remediation Technologies Symposium 2017
October 12, 2017
Kalina Noel, M.E.Des., P.Biol
Remediation of a Former Unofficial Dumpsite – Wilmer Marsh Unit
Columbia National Wildlife Area
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Unique SiteColumbia National Wildlife Area – Wilmer Unit
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Background – Site Location and HistoryWilmer Marsh Unit, Columbia NWA
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Background – Site Location and HistoryWilmer Marsh Unit, Columbia NWA
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Background – Reason for Remedial Action
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Background – Reason for Remedial Action
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Background – Reason for Remedial Action
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Background – Reason for Remedial Action
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• Decades of illegal dumping, both on the uplands and in the marsh below have resulted in soil, sediment and surface water contamination (primarily metals) above the applicable CCME standards
• Environmental work commenced in 2002-2003 – assessment of soil, sediment, and surface water.
• Follow up assessments between 2003-2006 and 2009/2010 around identified dumping areas and visual debris.
• Remedial planning conducted 2009-2013 to determine areas of importance and least invasive.
• Debris removed:
• 2010 (upper slopes)
• 2011 (marsh)
• 2012 (upper slopes and gullies)
• 2015 (marsh and upper slopes/trail)
• 2017 (upper slopes/trail)
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Background – The Cleanup
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Background – The Cleanup
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Project and Site Challenges
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• CWS permits are required prior to project work commencement• Any backfills must be sourced locally• Only natural materials can be used onsite• Native CWS approved seeding only – no other matrix• Protection of remaining native vegetation communities• Wildlife timing restrictions
• Ice conditions for work at the marsh• Use of helicopters and spider hoes and other approved equipment• Steep slopes for equipment use and for excavation/restoration – steep gully sidewalls of 70-90%• Powdery glaciolacustrine deposits• Erosion control• Limited staging area along Westside Road – no equipment staging on site
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Restoration
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March 2017
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2011
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2017
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Contact InformationMark KonecnyContaminated Sites Officer
Environment [email protected] 613-990-1835
Lindsay Paterson, MSc, PAgProject Manager and Soil Scientist
SLR Consulting (Canada) [email protected]
Telephone 250-762-7202
Bradley KlaverEnvironmental Specialist, Environmental Services
PWGSC - Pacific Region
[email protected] 604-775-9349
Kalina Noel, M.E.Des., P.Biol., R.P.Bio.
SLR Consulting (Canada) [email protected]
Telephone 780-897-8946
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Thank You