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

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

Photo

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Presentation Outline

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Site Description and Conceptual Site Model Emergency Measures Improvement of Site Conditions Remedial Options Assessment Remediation Works – North Sector Remediation Works – South Sector Conclusions

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Site Location

In 2004

About 225,390 L of petroleum

products released (diesel / gasoline);

Sensitive ecological environment

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Site Habitats

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Open Fen Wooded Fen Bog Forest Wooded Bog Lagg

South Sector North Sector

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Site Conceptual Model (2004)

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Impacted Area Topography Stratigraphy

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Tripod mounted drilling Technician training Collaboration with Academics Monitoring of natural attenuation indicators Biodiversity monitoring Consultation with Stakeholders Indicators – soc. env. econ Negotiation with regulator Collaboration with site

wners

Continued collaboration with academics Access for the public Uses of renewable energy Limit impacts to vegetation Uses of local personal Continued collaboration with academics Local personal H&S workers / public Receptors and resources protection Limit impacts to vegetation

Characterization / Monitoring Remedial Options Assessment Remedial Action Plan Emergency Measures

SD Best Practices and Benefits

Integration of SD principles in all phases of the project life-cycle. Some examples….

April 27, 2016

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April 27, 2016

Emergency Measures

Emergency measures

ptimised:

Limit impacts to

vegetation;

Protect sensitive

receptors and resources;

Protect public and

workers

Optimised Recovery Techniques Optimised drilling techniques to avoid impacts to vegetation Confining measures to limit impacts to resources Optimised Recovery Techniques

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Site Monitoring – North Sector

April 27, 2016

2004 2009

Damages to vegetation following the spill in 2004. Improvement to vegetation – colonization by native plants.

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Site Monitoring – South Sector

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2005 2009

Damages to vegetation following the spill in 2004. Improvement to vegetation – recovering of sphagnum cover.

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Site Conditions Before Remediation

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South 2005

2013

South Sector North Sector North 2005

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GoldSET : Sustainability Evaluation Tool

Site Description

Conceptualization of

site conditions

Evaluation is site

specific

Objective definition

Scoring Interpretation & Reporting Option Description

Fatal flaw analysis:
Objectives
Cost
Duration
Technical
Legal

Indicators

Includes:

Int’l Standards &

Best Practices

Corp. Objectives
Legal Requirements

Environmental

Natural Resources,

Ecological Integrity, Energy, Waste, etc. Social

Health & Safety,

QOL, Culture, Regulations Economic

NPV, ROI,

Technological Regiments, etc. Quantification of indicators:

Specific to client

requirements Evaluation of Options based on “Triple Bottom Line” Structured system for ranking options:

Tailored scoring and

weighing schemes

Results are given by

ternary diagram Eco-efficiency Cost Benefit Analysis Stakeholder Concerns

OPTION A OPTION B OPTION C OPTION D

Recommendations to support decision making:

Tangible
Transparent
Optimized

Automated reporting (web version)

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Issues and Stakeholders

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Commun Objectives:

Limit environmental, social and economical impacts

MDDELCC and Environment Canada

Regulation Public health protection Environmental quality (soil, water, habitat, etc) and natural resources protection

Propriétaires des lots adjacents

Land value Quality of life Environmental quality (soil, water, habitat, etc) Site safety

Société de conservation et de mise en valeur de la Grande Plée bleue

Environmental quality (soil, water, habitat, etc) Protect site usages for the public Protect habitats

Expertise

CN

Railway safety and uses H&S workers / public Costs Litigation Social sensibility response Environmmental quality Regulation

Consultant

Academics

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Remedial Options Assessment

Three Remedial options have been assessed: Monitored Natural Attenuation Excavation, in situ treatment, and, impraticability Site-wide excavation

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ENVIRONMENTAL

Soil Quality
Groundwater Quality
Surface water Quality
Water Usage
Soil Vapour Intrusion
Free Product
Drinking Water
Impacts on Biodiversity
Impacts on Natural

Habitats

GHG Emissions
Energy Consumption
Wastes
Hazardous Wastes
Air Emissions

SOCIAL

Public Safety
Worker Safety
Quality of Life
Project Duration
Use for the Public
Natural Heritage
Local resources
Economic Advantages

for the Local Community

Social Sensibility

Response

Environmental

Regulation

Impacts on Landscape
Management

Innovation

ECONOMIC

Net present value
Litigation Potential
Financial

Recoveries

Environmental

Reserve

Train Service

Reliability and Performance

Local Economic

Benefits

Technical

Uncertainty

Logistics

Selected Indicators

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Remedial Options Assessment Results

Monitored Natural Attenuation Excavation, in situ treatment and, impraticability Site-wide Excavation

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Remediation Program

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2004 2005 2015 South Sector

Excavation and revegetation
Vegetation monitoring

North Sector

Impracticality Notice

In situ treatment pilot testing
In situ treatment or

excavation

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Indicator Category:

Environmental

Objective : to prevent impacted

water offsite migration

Open Fen Excavation BMP Application

Excavation Infrastructure development Sand bag dam Shutter balls Indicator Category : Economic Objective : technological

uncertainty relative to the peat bearing capacity

Excavator matting

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Indicator Category : Social Objective : Clean peat was

supplied by a local peatland in Saint-Charles-de-Bellechasse - Les Tourbes Nirom Peat Moss inc.

Clean Peat Installation

Open Fen Excavation BMP Application

Indicator Category: Social Objective : to hire a local work

force

Chaudière-Appalaches Region Sub- Contractor

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Indicator Category :

Environmental

Objective : to control short-, mid-

and long-term excavation impacts

Post-remediation Monitoring

Open Fen Excavation BMP Application

Seeding using site plants and site- specific seeds Indicator Category :

Environmental

Objective : to enhance

revegetation and restore the ecosystem

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Open Fen Excavation Summary

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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 %)

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South Sector – In Situ Treatment Pilot Testing

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Pilot Test Configuration

Solar Panels CT-14-03 CB-14-03 Unit CB-14-02 CT-14-02 CT-14-01 Sidewalks CB-14-01

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In Situ Treatment Pilot Testing BMP Application

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Sidewalks construction Indicator Category :

Environmental

Objective : to prevent damages

to the vegetation due to trampling

Use of solar power for the blower energy feeding Indicator Category :

Environmental

Objective : to reduce GHG

emissions

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In Situ Treatment Pilot Testing BMP Application

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Groundwater monitoring Indicator Category :

Environmental

Objective : to confirm that

contaminants do not migrate

ffsite due to the treatment

Non destructive treatment strategy Indicator Category : Social Objective: to reduce impacts on

landscape and site usage relative to an excavation

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