Project overview


At PG&E, our primary responsibility is the safety of our customers and the communities we serve. As part of that responsibility, we will be upgrading pipe fittings and testing our underground natural gas transmission pipeline from Calistoga starting in November 2019 through December 2022. This routine safety testing is mandated by the California Public Utilities Commission (CPUC) and will confirm the pipeline’s integrity and operating pressure.


During the safety test, we empty the pipeline of gas, fill it with water and pressurize it to a level higher than normal operating pressure. We then repair or replace any section of the pipeline that does not meet safety standards. You may see PG&E and contractor trucks and other heavy equipment as part of our work. This project may require large-scale digging to access the pipeline and traffic will be redirected as needed. You may also hear a loud steady noise and notice the smell of gas.


Our crews continue to perform critical maintenance and essential safety work during the COVID-19 pandemic. While doing this work, our crews will maintain our social distance and wear protective equipment to help safeguard the health and safety of our workers and the general public.



Contact us

If you have questions about our natural gas safety work, please contact your local PG&E representative, Arif Khalik, at 628-234-5824 or Arif.Khalik@pge.com.


For more information on pipeline safety programs, call our Gas System Help Line at 1-888-743-7431. For general questions, call Customer Service at 1-800-743-5000.

Construction hours


9 p.m. – 6 a.m., Monday through Saturday and occasionally on Sunday.


Restricted hours may be imposed by the cities based on work location.


What you can expect to see


  • During construction, you may see PG&E crews, contractors, trucks and other heavy equipment. There will be dust, tree trimming and removal, and construction-related noises as these projects require large-scale excavation work to install the new natural gas pipeline.
  • This work may affect traffic, including potential lane closures. We will clearly mark all work areas and will help to safely direct traffic around construction work. Please plan for minor delays when driving through this area.

Community protection measures


Safety is our highest priority at PG&E. Work will be conducted under a project-specific Health and Safety Plan. Measures to protect both workers and the public will be implemented including traffic, noise and dust control measures.


Minimizing impacts


Natural gas pipeline activities will be coordinated with nearby businesses and residences to minimize impacts to the greatest extent possible, including providing alternate parking when needed. We will also work closely with utility providers to ensure there are no disruptions to their services and work with delivery carriers so that they can continue to deliver packages in an efficient manner.


Gas service


Our work should not interrupt your gas service, but we will contact you in advance if there are any changes that cause a temporary gas interruption.


Natural gas release


On the day the retired pipeline is taken out of service, there will be a controlled and safe release of a small amount of natural gas. You may hear a loud steady noise and notice the smell of gas. While gas odors are likely from this work, we encourage anyone with concerns to call us at 1-800-743-5000. We will notify nearby community members in advance of releasing gas.