Canada Energy Regulator responds to pipeline rupture on NOVA Gas Transmission Ltd. Grande Prairie Mainline

News Release
For Immediate Release

April 16, 2024

CALGARY – The Canada Energy Regulator (CER) is responding to an incident involving TC Energy’s NOVA Gas Transmission Ltd. Grande Prairie Mainline near Edson, Alberta. The affected section of the pipeline is currently shut in.

Preliminary information indicates that a 36” natural gas pipeline ruptured around 10:45 a.m. on April 16, 2024. The rupture caused a small wildfire on Crown land, which is being held. All TC Energy personnel working nearby were safely evacuated and there are no reported injuries. The company reported that it notified nearby communities, and there were no direct impacts to landowners or Indigenous communities. The company is working with local authorities and has activated its Emergency Response Plan.

CER inspectors will be onsite to monitor and assess the company’s immediate response and verify that all reasonable actions are being taken to protect workers, the public and the environment.

In an emergency, the CER works with the company and federal, provincial and territorial partners, as applicable, to coordinate the response. The CER’s priority in any emergency is to make sure that people are safe and that property and the environment are protected.

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Quick Facts

  • NOVA Gas Transmission Ltd. owns the NGTL system, a natural gas gathering and transportation system in Alberta and northeastern British Columbia. NGTL transports natural gas produced in the Western Canadian Sedimentary Basin to markets in Canada and the United States.
  • The affected section of the 36-inch natural gas pipeline has been fully isolated.
  • Within the right-of-way, there are two other TC Energy pipelines, a 42-inch and a 48-inch, that remain operational at a reduced pressure.
  • TC Energy reported that there are no supply impacts because of the rupture.

Associated Links

The Canada Energy Regulator (CER) works to keep energy moving safely across the country. We review energy development projects and share energy information, all while enforcing some of the strictest safety and environmental standards in the world. To find out how the CER is working for you visit us online or connect on social media.


Amanda Williams
Communications Officer

Canada Energy Regulator
Telephone: 403-478-2890
Telephone (toll free): 1-800-899-1265
Facsimile: 403-292-5503
Facsimile (toll free): 1-877-288-8803

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