Oregon also has two operators of interstate natural gas transmission pipelines that cross into Oregon from other states and Canada. Those operators are Williams Northwest Pipelines and TC Energy. Although the interstate pipelines are under the jurisdiction of the U.S. Pipeline and Hazardous Materials Safety Administration (PHMSA), the PUC may periodically assists PHMSA on inspections of these transmission lines.
Inspection Results
Once the PUC has completed an inspection, corrective actions may be issued, which identify violations of the pipeline safety code. The companies must address these issues within the required response time.
The majority of damage to pipelines is caused by third-parties--meaning an individual hit a pipeline while digging. In a recent report, there were 1,405 reported digging incidents, continuing a downward 5-year trend.
To minimize these incidents, Oregonians, whether a professional or a homeowner doing a do-it-yourself project, are required by law to
call 811 to have underground utilities located prior to beginning any digging project.