Photo Sustainable Remediation of a Peatland Impacted by Petroleum - PowerPoint PPT Presentation

Photo Sustainable Remediation of a Peatland Impacted by Petroleum Hydrocarbons Presented by Sylvain Hains, P.Eng., M.Sc. April 27, 2016

Presentation Outline � Site Description and Conceptual Site Model � Emergency Measures � Improvement of Site Conditions � Remedial Options Assessment � Remediation Works – North Sector � Remediation Works – South Sector � Conclusions April 27, 2016 2

Site Location In 2004 About 225,390 L of petroleum � products released (diesel / gasoline); Sensitive ecological environment � April 27, 2016 3

Site Habitats Wooded Fen Open Fen Forest North Sector South Sector 4 May 5, 2016 4 Bog Wooded Bog Lagg

Site Conceptual Model (2004) Impacted Area Topography Stratigraphy May 5, 2016 5

SD Best Practices and Benefits Integration of SD principles in all phases of the project life-cycle. Some examples … . Emergency Characterization / Remedial Options Remedial Action Measures Monitoring Assessment Plan Local personal Tripod mounted Consultation with Access for the drilling Stakeholders public H&S workers / public Technician Indicators – soc. env. Uses of training econ renewable energy Receptors and resources Collaboration Negotiation with regulator Limit impacts to protection with Academics vegetation Collaboration with site Limit impacts to Monitoring of owners Uses of local vegetation natural personal Continued collaboration attenuation with academics Continued indicators collaboration with Biodiversity academics monitoring April 27, 2016 6

Emergency Measures � Emergency measures optimised: � Limit impacts to Optimised Recovery Optimised Recovery vegetation; Techniques Techniques � Protect sensitive receptors and resources; � Protect public and workers Confining measures to limit Optimised drilling techniques to impacts to resources avoid impacts to vegetation April 27, 2016 7

Site Monitoring – North Sector 2004 2009 Damages to vegetation following the spill in 2004. Improvement to vegetation – colonization by native plants. April 27, 2016 8

Site Monitoring – South Sector 2009 2005 Damages to vegetation following the spill in 2004. Improvement to vegetation – recovering of sphagnum cover. April 27, 2016 9

Site Conditions Before Remediation North 2005 2013 North Sector South 2005 South Sector 10 April 27, 2016

GoldSET : Sustainability Evaluation Tool Interpretation Site Indicators Scoring & Reporting Description Includes: Quantification of • Int’l Standards & indicators: OPTION A • Conceptualization of Best Practices • Specific to client OPTION B site conditions • Corp. Objectives requirements • Evaluation is site OPTION C • Legal Requirements specific OPTION D Evaluation of • Objective definition Environmental Options based on Recommendations -Natural Resources, “Triple Bottom Line” to support Ecological Integrity, decision making: Energy, Waste, etc. Option • Tangible Structured system • Transparent Description for ranking options: Social • Optimized • Tailored scoring and - Health & Safety, weighing schemes QOL, Culture, • Fatal flaw analysis: Automated • Results are given by Regulations • Objectives reporting (web ternary diagram • Cost version) Economic • Duration Eco-efficiency - NPV, ROI, • Technical • Legal Cost Benefit Analysis Technological Stakeholder Concerns Regiments, etc. April 27, 2016 13

Issues and Stakeholders MDDELCC and Environment Propriétaires des lots adjacents Canada Land value Quality of life Regulation Environmental quality (soil, water, habitat, etc) Public health protection Site safety Environmental quality (soil, water, habitat, etc) and natural resources protection Expertise CN Railway safety and uses H&S workers / public Consultant Costs Litigation Social sensibility response Academics Environmmental quality Regulation Commun Objectives : Société de conservation et de mise Limit environmental, social and en valeur de la Grande Plée bleue economical impacts Environmental quality (soil, water, habitat, etc) Protect site usages for the public Protect habitats May 5, 2016 12

Remedial Options Assessment Three Remedial options have been assessed: Excavation, Site-wide in situ treatment, and, Monitored Natural excavation impraticability Attenuation April 27, 2016 13

Selected Indicators ENVIRONMENTAL SOCIAL ECONOMIC Soil Quality � Public Safety Net present value � � Groundwater Quality � Worker Safety Litigation Potential � � Surface water Quality � Quality of Life Financial � � Water Usage Recoveries � Project Duration � Soil Vapour Intrusion Environmental � Use for the Public � � Reserve Free Product � Natural Heritage � Train Service Drinking Water � � Local resources � Reliability and Impacts on Biodiversity � Economic Advantages � Performance Impacts on Natural for the Local � Local Economic � Habitats Community Benefits GHG Emissions Social Sensibility � � Technical � Response Energy Consumption � Uncertainty Environmental Wastes � � Logistics � Regulation Hazardous Wastes � Impacts on Landscape � Air Emissions � Management � Innovation April 27, 2016 16

Remedial Options Assessment Results Excavation, in situ Site-wide treatment and, Monitored Natural Excavation impraticability Attenuation April 27, 2016 15

Remediation Program - Excavation and revegetation North Sector 2015 - Vegetation monitoring 2004 Impracticality Notice 2005 - In situ treatment pilot testing - In situ treatment or excavation South Sector April 27, 2016 16

Open Fen Excavation BMP Application Sand bag Shutter balls Excavator dam matting Excavation Infrastructure development � Indicator Category : Economic � Indicator Category: Environmental � Objective : technological uncertainty relative to the peat � Objective : to prevent impacted bearing capacity water offsite migration April 27, 2016 19

Open Fen Excavation BMP Application Chaudière-Appalaches Region Sub- Clean Peat Installation Contractor � Indicator Category : Social � Indicator Category: Social � Objective : Clean peat was � Objective : to hire a local work supplied by a local peatland in force Saint-Charles-de-Bellechasse - Les Tourbes Nirom Peat Moss inc. April 27, 2016 20

Open Fen Excavation BMP Application Seeding using site plants and site- specific seeds Post-remediation Monitoring � Indicator Category : � Indicator Category : Environmental Environmental � Objective : to enhance � Objective : to control short-, mid- revegetation and restore the and long-term excavation ecosystem impacts April 27, 2016 21

Open Fen Excavation Summary � The vegetated cover quickly established between the excavation in 2014 and the first monitoring in 2015 � No invasive species were identified � Suitable site vegetated cover composition � Trees and bushes satisfying survival rate (88 %) April 27, 2016 20

South Sector – In Situ Treatment Pilot Testing Pilot Test Configuration CT-14-03 CB-14-02 Sidewalks CT-14-02 CB-14-03 Unit Solar Panels CB-14-01 CT-14-01 April 27, 2016 21

In Situ Treatment Pilot Testing BMP Application Use of solar power for the blower energy feeding Sidewalks construction � Indicator Category : � Indicator Category : Environmental Environmental � Objective : to prevent damages � Objective : to reduce GHG to the vegetation due to emissions trampling April 27, 2016 22

In Situ Treatment Pilot Testing BMP Application Non destructive treatment strategy Groundwater monitoring � Indicator Category : � Indicator Category : Social Environmental � Objective: to reduce impacts on � Objective : to confirm that landscape and site usage contaminants do not migrate relative to an excavation offsite due to the treatment April 27, 2016 23

Conclusion � Multiple stakeholder consultation; � Sustainable development BMPs integrated since the emergency intervention and for the whole project lifecycle; � Actions taken to reduce or eliminate negative impacts in the use of an intrusive technique (excavation); � In situ treatment conception integrating sustainable development ideas. April 27, 2016 24