Many homes and businesses are served directly by small-diameter gas pipelines. For security reasons, these pipelines cannot be displayed on an online map. Before you begin digging or an excavation project, we encourage you to call 8-1-1. The 811 line is a free service that marks underground facilities near you.
Visit our Gas Transmission Pipelines page for information about larger-diameter transmission pipelines.
To learn more about our gas system and how we keep it safe, visit our Explore the PG&E Natural Gas System page.