Natural gas will be flowing through the pipeline that has been at the center of controversy in San Carlos.
PG&E officials planned to restart Line 147 on Monday. The line runs along a four-mile stretch under Brittan Avenue.
The pipeline was shut down in October after city officials found emails in which a PG&E employee questioned the safety of several pipelines, including Line 147, following the 2010 explosion of a natural gas pipeline in San Bruno. That explosion killed eight people and destroyed 40 homes.
Last month, a judge ruled Line 147 could be restarted Monday at 125 pounds per square inch, significantly less than the 330 pounds per square inch PG&E believes is safe.
