Session Details

High Consequence Area Definition Supports Prevention of High Consequence Pipeline Events

The session will discuss how defining High Consequence Areas can prevent High Consequence Events. The discussion will cover risk, regulatory requirements, operational practices and standards as they pertain to High Consequence Areas. Discussion will also include how defining what is high consequence is allows for consistent approach to assigning critical activities in an effort to reduce or eliminate High Consequence Events.


Prevention of High Consequence Events is critical and prioritizing both financial and human resources available to operators is important. With the public outcry over pipeline events the reaction by both the public and the regulators has in many cases been more of a shotgun approach and is trying to solve too many problems at once without priority in approach.

All pipeline integrity programs must work in a risk based manner to effectively manage risk and prevent pipeline leaks. Risk based programs are often developed in house by each operator and the sophistication of their risk tools is highly variable from a qualitative spreadsheet to high level modelling and analysis.

Pipeline operators come in many forms, from large transmission pipeline operators that deliver refined product through large diameter pipelines to small upstream oil and gas operators that deliver unrefined products through thousands of small diameter pipelines from the wellhead to their facilities.

Upstream operators suffer greater than 1 leak per year per 1000 km of pipelines and many of these leaks are small and easy to cleanup. But some have significant impact on people and the environment.
Currently a definition of what a High Consequence event is doesn’t exist and is required to consistently define high consequence areas. Currently it is left to every operator to create their own definition and incorporate this into their risk tools.

This is a problem as it leaves the risk tolerance up to the operator and this may not reflect the risk tolerance of Canadians. It leaves discretion by operators to do what they can afford and gamble with risk.

By defining High Consequence Areas (HCA’s) it sets a mechanism for targeting a higher level of requirements for HCA’s and helps to maintain the risk tolerance of all Canadians not just the pipeline operator. At the end of the day high consequence events affect all of us, our sensitive water bodies, our communities, and the reputation of our industry.


Daryl Foley, President GROUP 10 ENGINEERING


Owner and President of Group 10 Engineering Ltd.

Professional permit to practice in Alberta,Saskatchewan and British Columbia in the discipline of Materials Engineering. Specialized in Corrosion and Materials, Asset Integrity, and Process Safety with over 30 years experience both domestic and International

• President, Group 10 Engineering Ltd. Calgary, AB
• PSM Lead Synthetic Oil Major Projects, Nexen Inc. Calgary, AB
• Supervisor Corrosion & Materials, Nexen Inc. Calgary, AB
• Chief Inspector, Nexen Inc. Calgary, AB
• Corrosion and Materials Specialist, Nexen Inc. Calgary, AB
• Corrosion engineer and Chemical & Cathodic Protection Supervisor, Nexen Masila Yemen.
• Corrosion and Inspection, Norcen Energy Calgary, AB
• Corrosion and Inspection, BP Canada. Calgary, AB
• Production Technologist, BP Canada (Wolf Lake). Bonnyville, AB
• Technologist, Amoco Canada. Calgary, AB
• Setup of field lab for heavy oil operations, testing of water and emulsion.

• CSA Z662 Production Technical Subcommittee (Since 2010)
• Chair of task force for CSA Z662 Clause 14 2011 to 2015
• Founder & Chair of the Thermal Pipeline Task Force (TPTF) 2009 to 2016
• Founder and Chair of the thermal recovery reliability group (TRRG) 2007 to present
• Co-Founder Alberta Community of Quality Practice
• Vice Chair of SACE (Society in Alberta for the control of Electrolysis) 1993
• Chair of NACE Oil Sands Corrosion Technical Exchange Group
• IPEIA Steering Committee 2007
• Chair Oilsands workshops (In-situ sessions) 2010-2014
• NACE honorary 25 year member

• API 510
• API 570
• NB-23 (National Board Boilers)
• IBPVI - In Service Boiler and Pressure Vessel Inspector (ABSA)
• Level 3 (Peer Review) Coating Inspector (NACE)