Reliability

Customers rely on us to provide uninterrupted transportation of natural gas. To deliver continuous service, our facilities and equipment must be properly maintained and monitored.

While our reliability and safety records have been good, we continue to review our procedures and evaluate our facilities, looking for opportunities to improve. By using root-cause analysis to understand failures that occur to properly execute corrective actions and by implementing a risk-based maintenance prioritization process, we are further strengthening this critical area.

Within Union Gas, another key factor affecting reliability is line breaks, most commonly caused by excavation. We work to minimize these incidents by educating construction planners and excavators and the general public.

In our Western Canada Transmission and Processing business, we track loss of service incidents. In 2009, we achieved system reliability of 98.9% for this business.