TransCanada is an industry leader in pipeline integrity and safety. TransCanada has an extensive Pipeline Maintenance Program (PMP) to monitor, inspect and repair our pipeline facilities, and we invest hundreds of millions of dollars each year to maintain the integrity of our system.
These safety measures will be put in place to keep Energy East Pipeline operating safely:
- Shut-off valves are located at pump stations and at regular intervals along the pipeline between pump stations. If there is a drop in pressure, the shut-off valves can be remotely closed within minutes, shutting down the pipeline
- Regular inspections of the pipeline route are performed by low-flying helicopters and airplanes. Pilots look for potential hazards (e.g. unauthorized activity, soil disturbances) that could compromise the integrity of the system. We also regularly use leak detection equipment to identify small leaks
- State-of-the-art satellite technology sends data from multiple data points to our monitoring centre every five seconds
- Cover surveys are conducted when we suspect wind or water erosion may have reduced the depth of ground cover over a pipeline section
- Geotechnical monitoring is used to detect signs of erosion or movement where the pipeline crosses bodies of water or significant slopes
- Corrosion is prevented with an extremely low-voltage electric current called “cathodic protection”
- Our highly trained staff monitor our pipeline system through a centralized high-tech control centre — 24 hours a day, 365 days a year
- Regular maintenance is performed on all portions of the pipeline system. All pump stations and valves undergo routine maintenance in accordance with industry and government standards
- In-line inspection, which is also referred to as “pigging”, searches for any locations where corrosion may have occurred. Specialized internal inspection devices, called Smart PIGS, periodically travel through the pipeline collecting data. The data is then analyzed to determine if there are areas of concern requiring further investigation
- TransCanada conducts investigative digs based on the data analysis from “pigging” and other information. Sections of pipeline are excavated to investigate their condition and to ensure integrity. Detailed engineering assessments are used to determine if and when repairs are required
- We run an ongoing public awareness programs to ensure local governments, businesses and residents notify us before they plan construction activities
Pipeline Safety Monitoring
Shut-off valves, strategically placed approximately every 30 kilometres along the pipeline, are designed to immediately shut off when pressure drops.
The use of electronic in-line detection devices known as Smart PIGs allows for the detection of defects in the pipe.