Manny Marta, P.Eng. Project Lead CSChE Chemical Spill Environmental/ Ecological Risk Assessment Guideline Development “Bridging Process Safety and Environmental Science” PSM Division & CSA Technical Committee Meeting Edmonton, Alberta June 20, 2018 Manny Marta, P.Eng. Project Lead File Date: June 7, 2018

Presentation Topics Development Team Guideline Purpose Guideline Scope Intended Users & Benefits How Guideline Can Support CSA PSM Standard Simple Status on Development Presentation target – 15+/- minutes Questions – 15+/- minutes

Development Team Process Safety Experts Environmental Experts Some are CSChE PSM Division members Environmental Experts Includes consultants, former Gov’t of Canada scientist, former professor Industry members Some are/ were CIAC members Environmental advocate Regulators Alberta, Ontario, BC

Guideline Purpose To provide practical guidance on Planning/ performing an environmental or ecological risk assessment Making risk-based decisions or prioritizations By integrating best practices from process safety environmental science Complement Public Safety Risk Assessment Guideline

Guideline Scope Chemicals Chemical Sources Chemical phases Toxic to ecosystems or environment Chemical Sources Fixed facilities; e.g. production sites, storage sites Transportation systems; e.g., pipelines, rail, road, marine, air Chemical phases Liquid, solid, vapour

Guideline Scope (Cont’d) Areas of Concern Ecosystems Aquatic, Terrestrial, Wetland Habitats Fauna/ Flora receptors Human Use Areas (Socio-Economic) Aquatic, terrestrial Water sources – drinking, agricultural use Cultural/ traditional Commercial Recreational

Guideline Scope (Cont’d) Not in Scope This Time Around Direct health & safety harm to humans due to following exposures Ingestion or contact from contaminated water, soil, fauna, flora Reserved for future update of guideline Saves time/ effort and complexities involving risk criteria calibration for both non-human and human harm Direct harm to humans from exposure to released chemical vapor is captured in proposed Public Safety Risk Assessment Guideline

Intended Users Introducers of Risk Users/ advocates of the environment chemical production or transportation companies Users/ advocates of the environment Public Interest Groups Regulators

Benefits for Users Provide for common understanding between different users Evidence-based analyses Statistical/ probabilistic Scientific exposure & effects assessment Transparent decision-making criteria based on risk with integration of Expected frequency of a spill/ release Estimated Overall Environmental Harm Index

How Guideline Can Support CSA PSM Standard In relation to Environmental/ Ecological Risk Risks experienced outside facility property 6.0 Understanding Hazards & Risks 6.3 Process risk assessment & risk reduction 6.3.4 Hazard identification 6.3.5 Consequence analysis 6.3.6 (Annual) Likelihood analysis 6.3.7 Risk estimation 6.3.8 Risk criteria 6.3.9 Risk management 7.0 Risk Management 7.4 Emergency management planning Fig. 1 (pg. 36) Risk management framework

Risk Criteria Framework 𝑬𝑯𝑰 𝒙 = 𝑬𝒙𝒕𝒆𝒏𝒕 𝑬𝒙𝒕𝒆𝒏𝒕 𝒓𝒆𝒇 x 𝑺𝒆𝒗𝒆𝒓𝒊𝒕𝒚 𝑺𝒆𝒗𝒆𝒓𝒊𝒕𝒚 𝒓𝒆𝒇 x 𝑹𝒆𝒄𝒐𝒗𝒆𝒓𝒚 𝑹𝒆𝒄𝒐𝒗𝒆𝒓𝒚 𝒓𝒆𝒇 Extentref / Severityref / Recoveryref - Defines a significant/ major accident Adapted from UK DETR (1998). Management of Harm to the Environment: Criteria for the Management of Unplanned Releases (The Stationary Office: London), ISBN 0-11-753456-0 Typical “Major Accident”; EHI = 100 Acceptable Frequency; ≤10-6 per yr. per site 𝑬𝑯𝑰 𝑻𝒐𝒕𝒂𝒍 = 𝒌 𝒋 𝑬𝑯𝑰 𝑩𝒊𝒐𝒕𝒊𝒄 𝑹𝒆𝒄𝒆𝒑𝒕𝒐𝒓𝒔 + 𝑬𝑯𝑰 𝑺𝒐𝒄𝒊𝒐−𝒆𝒄𝒐𝒏𝒐𝒎𝒊𝒄 𝑨𝒓𝒆𝒂𝒔 𝒋 𝒌 j – different toxic chemicals with different effects (from same spill) k – different ecosystems/ areas affected by same spill

Simple Status Overview Sections With Team Review Completed or In Progress – 8/22 (36%) Sections To Be Reviewed By Team – 14/22 (64%) Valuable Team Reviews Ensure technical accuracy and completeness Identify efficient ways to present information Separate Parallel Effort Planned Soon on Calibrating Risk Criteria Once scope section review finalized Includes Areas of Concern, Receptors of Concern Plan to be issued After Team Reviews Are Completed Readable Draft Prepared for Peer Review

Simple Status Overview (Cont’d) No. Title 1 Acknowledgements 9 Possible Typical Applications for Guideline Use 16 Risk Analysis (Integrating Frequency & Consequences) 2 Key Terms & Acronyms 10 Typical Triggers 17 Risk Assessment & Decision Making Criteria 3 Guideline Introduction 11 Overall Process Explained (To include flow diagrams) 18 Risk Control/ Management (Risk prevention/ mitigation) 4 Guideline Currency & Relevance 12 General Problem Understanding (Includes conceptual models) 19 Uncertainty and Confidence 5 General Purpose of Guideline 13 General Planning (Includes needed data/ experts/ tools, scheduling) 20 Risk Communication 6 Guideline Objectives/ Goals 14 Hazard Analyses & Spill/ Release Scenarios Development (Design/ Operations) 21 Longer Term Monitoring 7 Regulatory Requirements 15 Spill/ Release Consequence Analysis (Includes Transport & Fate Modeling, Exposure and Effects Assessment) 22 Addenda (Extra Info, data sources, etc.) 8 Scope for Guideline (Types of chemicals, Fixed Facilities, Transportation Systems, Ecosystems, Socio-Economic Systems/ Areas, Areas of Concerns, Potential Spill Location Criteria, Receptors (Incl.Soil)

Useful Links Link to online shared location for Orientation Document (i.e., draft guideline), Environmental Risk Decision Methods Document, Excel Aid for Environmental Harm Index (EHI) Method https://drive.google.com/open?id=0B4hKgrr_Gus5NGlxRTlIQlM3eEU Link to online shared location for Key Terms and Acronyms Document https://drive.google.com/open?id=0B4hKgrr_Gus5fmF0TlliNkNMNGY2b3hlYU1wTGYxeHRRQlN2U3NNUDhjT3YwbC1xNUh6aE0 Free presentation template courtesy of the Presentation Magazine website www.presentationmagazine.com