STATE OF CALIFORNIA
Welcome to the California Public Utilities Commission (CPUC) website for the California Environmental Quality Act (CEQA) review of proposed construction of the Central Valley Natural Gas Storage Project. An application for this project was submitted to the CPUC on August 19, 2009 (Application A.09-08-008). This site provides access to public documents and information relevant to the CEQA review process.
Central Valley Gas Storage, LLC (Central Valley) has filed an application with the CPUC to construct the Central Valley Natural Gas Storage Project located near the unincorporated town of Princeton in Colusa County. The CPUC is the CEQA lead agency.
Central Valley proposes to convert, construct, and operate the depleted Princeton Gas Field as a natural gas storage facility. The conversion of the depleted gas field will require the construction of surface and subsurface facilities including a compressor station, remote well pad site, observation wells, metering station, and natural gas connecting pipelines. The project includes construction, operation, and maintenance of the following components:
The project would provide natural gas storage by injecting natural gas into the Princeton Gas Field, a depleted natural gas reservoir located approximately 2,200 feet underground. The natural gas would then be withdrawn according to customer demand. Central Valley proposes to inject into the Princeton Gas Field 9 billion cubic feet (Bcf) of natural gas in the first year of service (an ultimate working gas capacity of 11 Bcf will be phased in over two years).
The proposed project would be located in northeastern Colusa County, approximately 60 miles northwest of Sacramento. (See Regional Map). The compressor station and remote well pad site would be located near Princeton, and the PG&E Line 400/401 connecting pipeline would travel west from the compressor station to the metering station, interconnecting with PG&E Line 400/401 several hundred feet south of PG&E’s Delevan compressor station. (See Project Location Map).
Application and Proponent's Environmental Assessment (PEA)
The PEA for the Central Valley Natural Gas Storage Project may be viewed here.
The Ambient Sound Survey and Noise Impact Evaluation can be viewed here. (August 2009)
The Revised Drill Rig/Service Rig Noise Analysis & Temporary Compressor Unit Noise Analysis can be viewed here. (January 2010)
Other Documents Available
The Applicant provided Supplemental CEQA Mitigation Information that is available here. (November 30, 2009)
The First PEA deficiency letter was mailed by the CPUC on September 18, 2009 and can be viewed here.
Application deemed complete on October 20, 2009. Letter can be viewed here.
Final IS/MND Publication
The Final IS/MND incorporates all comments received during the public review period for the Draft IS/MND, as well as revisions discussed and agreed upon during various discussions with the applicants and the CPUC. The responses to comments are provided in Attachment 1 of the Final IS/MND. Revisions to the Draft IS/MND are shown in
The Final IS/MND can be viewed by clicking here.
Draft IS/MND Publication
The Draft IS/MND may be viewed by clicking here.Public Involvement and Comment Period
The Draft IS/MND is also available for review at the following libraries:
On May 5, 2010 the CPUC conducted a public meeting regarding the CVGS Draft MND. The meeting was held at Princeton High School, Multi Purpose Room, Princeton, California. The meeting Agenda, PowerPoint Presentation presented, and Comment Form are available here.
The original end of the Draft MND review period was extended from May 22, 2010, to June 7, 2010. Public notice is available here.
Comments on the Draft IS/MND were accepted until 5:00 p.m. on June 7, 2010. Please send comments, with the name and address of an appropriate contact person, to:
Construction Progress and Mitigation Monitoring
Reports issued by the CPUC, reports on construction progress, and reports issued as part of the Mitigation Monitoring Program will be published here, when available.
For Additional Information
The CPUC, through its Environmental Review Team, is conducting an environmental review of the project. To request additional information or to be added to the mailing list, please contact us by email as follows:
The CPUC's Project Manager is:
Eric Chiang, CPUC Project Manager