Central Valley is proposing to convert the depleted Princeton Gas Field into a high-deliverability, multi-cycle storage field. The Princeton Field produced approximately 9.8 Bcf of gas between 1954 and 1992. The field will ultimately be developed to provide 8 Bcf of working gas capacity. The field will be designed to achieve a maximum withdrawal and injection capability of 200 million standard cubic feet per day (MMscfd).

Central Valley Gas Storage will be located near the unincorporated town of Princeton in Colusa County, California. The proposed project is located in a rural agricultural area, with historic and ongoing gas storage and delivery operations. The project area is approximately 60 miles north and west of the City of Sacramento.

The proposed project consists of the following primary components.

• A 10,650 HP compressor station and associated facilities located on a 10-acre site.
• Nine injection/withdrawal wells at one wellpad site.
• A 12-inch gas pipeline and meter skid and a rental compressor for a temporary connection to PG&E Line 172.
• A 14.9-mile-long, 24-inch-diameter gas pipeline that connects the compressor station to PG&E Line 400/401.
• Conversion of up to two existing wells and re-entry of up to three plugged gas wells to convert to observation wells.
• One to two salt water disposal wells located at wellpad site.
• A metering station located near PG&E Line 400/401.