2011 December Report of the Commissioner of the Environment and Sustainable Development
Exhibit 1.5—Age of pipelines regulated by the National Energy Board, as of July 2011
This pie chart divides by age the pipelines regulated by the National Energy Board, as of July 2011. The chart shows the number of kilometres of pipeline per age. Pipelines less than 30 years old cover 35,733 kilometres; pipelines between 30 and 50 years old cover 22,673 kilometres; pipelines over 50 years cover 9,158 kilometres; and for 1,733 kilometres of pipeline, the age is unknown.
The chart includes kilometres for only approved and operating pipelines. It does not include the kilometres for pipelines in the categories: deactivated, deactivation in progress, or decommissioned.