Trans-Northern Pipelines Inc. (TNPI) operates pipelines regulated by the Canada Energy Regulator (CER) to safely transport the refined petroleum products (gasoline, diesel, aviation, and heating fuel) used by Canadian businesses and consumers every day. These pipelines connect refineries in Nanticoke, Ontario, and Montreal to Ottawa and the Greater Toronto Area (GTA), with lateral pipelines to Pearson International Airport and Pierre-Elliot Trudeau International Airport. We are committed to operating in a safe and environmentally responsible manner to protect the public, the environment, and the pipelines.
Trans-Northern operates above- and below-ground assets on land managed by the Greater Toronto Airport Authority (GTAA). To support planned land-use changes by the GTAA, Trans-Northern is preparing an application to abandon these assets and remove them. This Information Package is to advise you of the planned application and work entailed with the abandonment and removal of these assets.
These assets are regulated by the CER and the Project requires an approval from the CER under section 50 of the Onshore Pipeline Regulations to abandon the pipeline segment. This Information Package has been prepared to support engagement for the filing of this CER application with potentially affected persons or groups, including Indigenous communities.
Project Overview
The Silver Dart facility is located between Silver Dart Drive and Tank Farm Road in Mississauga, Ontario, on previously developed industrial lands.
The Project scope includes the cutting and capping of 75 metres of Trans-Northern pipeline on the property, and removal of all above- and below-ground Trans-Northen piping and equipment to align with long-range plans for the demolition of the Silver Dart facility to accommodate expansion plans by the Greater Toronto Airport Authority.
View Site Map of the Silver Dart Facility (PDF)Timing of CER Filing
The application is expected to be filed with the CER as early as February 2026.
Proposed Timing and Duration of Construction
Removal of all above and below-ground assets is anticipated to take place as early as Q1 2027. Any major scheduling changes will be communicated to potentially affected persons or groups.
Construction will commence following receipt of the CER, federal, provincial, and municipal approvals as required. Currently, approvals are expected to be received before end of 2026. The schedule for removal of assets will be shared at a later date to impacted and potentially impacted parties, and notifications will be made prior to the commencement of work.
The Environment
A Phase I Environmental Site Assessment (ESA) has been carried out on the lands leased by Trans-Northern. The assessment included review of previously completed Phase II ESAs.
Site Reclamation
Any impacts within the facility where the pipeline is to be abandoned will be remediated by PIFFC using a risk-based approach. The facility grounds will be left in a state consistent with the requirements of the landowner and other stakeholders, and other project commitments.
Corporate Engagement Policy
Trans-Northern is committed to working with landowners, regulators, and others in the communities where we operate as we all play a role in pipeline safety. As part of this commitment, Trans-Northern keeps the community informed of relevant health and safety, security, and environmental issues regarding the pipeline during its lifecycle. A stakeholder engagement process, which includes consultation and engagement with landowners, Indigenous communities, government agencies, and other interested persons, is in place to allow public input into our Silver Dart Abandonment Project during the planning process.
As part of Project planning, engagement with potentially affected persons and communities is expected by the CER. Feedback collected will be used to support finalizing the development and implementation of the Project plan. Public engagement is also an important component of the Environmental and Socio-Economic Assessment. Input received will be used to confirm both the existing environmental conditions and to develop site specific protection or mitigation measures for the Project.
Indigenous Peoples
A Project Information Package is being communicated to Indigenous communities based on previous relationships, potential effects on known or asserted traditional territory, and direction received from the CER.
Public Safety
Trans-Northern is committed to operating in a safe and environmentally responsible manner to protect the public, the environment, and the pipelines. Trans-Northern is also committed to keeping the community and all stakeholders informed of relevant safety issues regarding their pipelines, and any proposed changes to these pipelines.
Emergency Response
Trans-Northern has a detailed Emergency Response Plan in place to respond safely and efficiently in the unlikely event of an incident. The Emergency Response Plan is available to the public on its website (Emergency Response Planning – Trans-Northern Pipelines Inc.). In the event of an emergency, Trans-Northern’s emergency line is available 24 hours a day, seven days a week at 1-800-361-0608.
Conditions and Commitments
Following the filing of the Project with the CER, information including status of conditions and commitments will be updated and posted on the CER website as required. Trans-Northern will share this CER website link when available and will be posted on this Project page.
Issue Resolution
How to participate
Trans-Northern is committed to working with impacted and potentially affected persons to resolve issues and concerns in a proactive manner. If Trans-Northern is unable to resolve a disagreement between parties, it will advise the CER and initiate the Alternate Dispute Resolution Process. Trans-Northern understands and respects that this process can be initiated by anyone involved in a dispute with Trans-Northern over a CER-regulated pipeline.
Keeping those potentially affected by the Project informed is an important aspect of all our major projects. Information regarding this Project will continue to be posted on this page and emailed to potentially affected people and groups.
For more information, or if you have questions or concerns about this Project, please contact:
Lee Nanos
Team Lead — Regulatory, Trans-Northern Pipelines Inc.
Phone: 403-476-1593
[email protected]
Your questions or concerns can also be provided directly to the CER at:
Canada Energy Regulator
Suite 210, 517 Tenth Avenue SW
Calgary, Alberta
T2R 0A8
Toll-free: 1-800-899-1265
Toll-free fax: 1-877-288-8803
The application will be available for viewing on the CER website once it has been filed. Trans-Northern will advise all potentially affected by the Project of the actual filing date.