Line 5 monitoring

Keeping a watchful eye, 24/7, with trained staff and computerized monitoring.

We monitor Line 5 around the clock, using both specially trained staff and sophisticated computer monitoring systems, as part of our commitment to safe operations.

Line 5 is monitored 24/7/365 by a dedicated team of two specially trained Enbridge staff members at our control centerone directly monitoring, the other supporting. These controllers undergo a comprehensive six- to nine-month training program before they are qualified to operate consoles independently. All system alarms generated by our automated leak detection equipment, and relayed to our control center staff, are assumed to be leaks until they are conclusively proven otherwise.

Upon detection of a problem, our specially trained staff can close remotely controlled isolation valves immediately, with full closure occurring within three minutes of activation to isolate the affected section of the line. Line 5 has remotely operated isolation valves along the entire line, including a valve on each shore at the Straits of Mackinac.

Enbridge personnel also perform aerial line patrols at the Straits every two to three weeks.