Completed Nine of 12 NTSB Safety Actions
The National Transportation and Safety Board (NTSB) notified PG&E that the utility has fulfilled two additional safety recommendations in response to the 2010 pipeline accident in San Bruno.
PG&E has now fulfilled nine of the 12 total actions recommended by the NTSB. Of the three remaining safety recommendations, the NTSB considers PG&E’s progress “open-acceptable response,” which means acceptable pending completion.
The two most recently completed actions are:
Integrity Management Program: PG&E reviewed every aspect of its Transmission Integrity Management Program (TIMP) and implemented a revised program to better evaluate and address threats to its natural gas pipeline system. As part of this effort, the company updated the model and risk methodology that considers all defect and leak data for the life of each pipeline, and an improved self-assessment process. Based on the new integrity management enhancements, PG&E conducted a revised threat assessment with a methodology that incorporates additional data on high-consequence, populated areas.
A copy of the assessment was submitted to the California Public Utilities Commission (CPUC) and the Pipeline and Hazardous Materials Safety Administration. PG&E’s TIMP is a comprehensive program for assessing and managing the integrity of gas transmission pipelines and taking appropriate action to address any risks.
Threat Assessment: PG&E has completed a threat assessment review of its gas transmission system using the revised methodology established in its TIMP. PG&E uses threat assessment and identification to assess and rank the risks associated with gas pipes located throughout the transmission system.
“We continue to make real, measurable progress as we strive to become the safest and most reliable gas operator in the nation,” said Nick Stavropoulos, PG&E’s executive vice president of gas operations. “We are pleased to have completed nine out of 12 NTSB recommendations, but there is still more work to be done. We are focused on fulfilling the remaining three recommendations, as well as doing much more beyond these steps to improve our gas system.”
The seven previously completed NTSB recommendations are MAOP validation, work clearance procedures, public awareness plan, records, emergency procedures, 9-1-1 notification and toxicology tests.