Waubuno Gathering System and Compressor Replacement Project

Project updates

This project is subject to approval by the Ontario Energy Board (OEB) and if approved, construction is anticipated to begin in mid-2026 and be completed September 2027.

Enbridge Gas plans to file a Leave to Construct application with the OEB in November 2025. You will be able to view the application in the Regulatory information tab once it is available.

Project calendar

Project consultation

For new construction projects, the collective input from Indigenous communities and Métis, government agencies, municipalities, stakeholders, the public and landowners play an integral role in the route and site selection process.

Prior to construction, public input is obtained to ensure that the community is advised of the proposed project, and to involve the public in the decision-making process. Public consultation is a key component of the environmental report.

By providing the public with an opportunity to receive information about the project, the consultation program helps identify and address stakeholder concerns, and have meaningful participation into the project review and development process. Please see below for additional information.

Public input from consultation was also used to help finalize the project and mitigation plans to be implemented during construction.

After the Leave to Construct application has been filed with the OEB, any party with an interest in the project, including members of the public, can participate in the process.

Public notification

Virtual public information session

Stantec Consulting has been hired to conduct an environmental study to assess the potential environmental and socio-economic effects that may result from this project.

As part of this study, a virtual public information session was held from April 14-28, 2025. Interested parties, including the media, were invited to view the materials online and provide feedback. Information about how attendees can stay informed and participate after the session is over was also provided.

The slides from the virtual public information session can be viewed here.

Notices

Notice of Upcoming Project letters were mailed out to the Ontario Pipeline Coordinating Committee, agencies, local municipalities, directly and indirectly affected landowners, and Indigenous communities in January and February 2025.

You can view the Notice of Upcoming Project.

Project commencement letters

Notice of project commencement letters, which also included information about how to attend the Virtual Public Information Session, were mailed to the Ontario Pipeline Coordinating Committee, agencies, local municipalities, directly and indirectly affected landowners, and Indigenous communities in April 2025.

You can view the Notice of Commencement.

Newspaper advertisements

The Notice of Project Commencement, which also included information about how to attend the Virtual Public Information Session, was published in Sarnia This Week on April 3, 2025.

Regulatory information

The Waubuno Storage Pool is used for both regulated and unregulated storage operations. The Waubuno Gathering System and Compressor Replacement Project itself is regulated by the Ontario Energy Board (OEB), an independent government agency that regulates the electricity and natural gas sectors. After a public review and hearing, the OEB will determine whether to approve the project. In this section, you can review all regulatory files about the project when they become available.

Environmental Report

In consideration of the impact identification and assessment process outlined in the OEB's Environmental Guidelines, Enbridge Gas retained the services of Stantec Consulting Ltd., an independent environmental consultant, to complete an environmental assessment for the proposed project.

The purpose of the environmental assessment is to:

• identify any potential impacts of the proposed project on the social, economic and natural environments
• identify local or provincial concerns regarding the proposed project
• determine preferred routing of the pipeline segments
• gather input from agencies, stakeholders, First Nations and Métis, affected landowners, and the public.

In addition, it recommends mitigation measures to limit impacts on the social, economic and natural environments. It is important to minimize potential negative impacts of the proposed natural gas distribution pipelines and associated facilities on the environment.

The data, analysis and results of the environmental assessment are detailed in an environmental report. You can read the environmental report here.

Leave to Construct Application

Enbridge Gas plans to file a leave to construct application with the Ontario Energy Board in November 2025.

A link to the Leave to Construct application will be available here once it is complete.

We want to hear from you! If you have any questions, please contact:

Christine Sebesta
Senior Advisor, Capital Development
Enbridge Gas
christine.sebesta@enbridge.com