PG&E Montezuma Hills Valve Yard I-203B - Gas Pipeline Facility in Rio Vista, California

PG&E Montezuma Hills Valve Yard I-203B is a gas pipeline facility located in Rio Vista, California, within Solano County. Operated by Pacific Gas and Electric Company (PG&E), this valve yard is part of the extensive natural gas transmission infrastructure that supplies the region. The facility plays a key role in regulating and monitoring gas flow along the pipeline network. The facility operates under the regulatory oversight of the Pipeline and Hazardous Materials Safety Administration (PHMSA) and complies with 49 CFR Part 192, which governs gas pipeline safety in the United States. As a valve yard, it includes critical components such as block valves, pressure regulators, and monitoring equipment to ensure safe and efficient gas transmission. The facility is part of PG&E's broader gas transmission system, which spans thousands of miles across California. This valve yard supports the energy needs of residential, commercial, and industrial customers in the region. Its location near the Montezuma Hills area is strategic for connecting supply sources to demand centers. The facility contributes to grid reliability and safety by enabling isolation of pipeline segments during maintenance or emergencies.

The facility is situated in the Sacramento-San Joaquin River Delta region, an ecologically sensitive area with extensive waterways and wetlands. Proximity to these water bodies requires robust spill prevention and cathodic protection measures to prevent corrosion and leaks. The surrounding agricultural and urban areas also necessitate careful monitoring to minimize environmental impact.