Sacramento Natural Gas Storage Project

(Application A.07-04-013)


Welcome to the California Public Utilities Commission (CPUC) website for the California Environmental Quality Act (CEQA) review of the proposed construction of the Sacramento Natural Gas Storage (SNGS) Project. An application for this project was submitted to the CPUC on April 9, 2007 (Application A.07-04-013). This site provides access to public documents and information relevant to the CEQA review.


Sacramento Natural Gas Storage, LLC (SNGS, LLC) has filed an application with the CPUC to construct the Sacramento Natural Gas Storage Project within the City and County of Sacramento. The CPUC is the CEQA lead agency. A Proponentís Environmental Assessment was filed with the CPUC on April 9, 2007.

The SNGS project, as proposed by the applicant, consists of the operation of a natural gas storage facility, which would require the construction of three project components, as follows:

  • Wellhead site (including injection and withdrawal wells)
  • Compressor station
  • Approximately 2 miles of pipeline connections between the wells and compressor station and between the compressor station and existing Sacramento Municipal Utilities District (SMUD) and Pacific Gas & Electric (PG&E) natural gas pipelines.

    The project would provide natural gas storage by injecting natural gas into the Florin Gas Field, a depleted natural gas reservoir located approximately 3,800 feet underground. Natural gas would then be withdrawn according to the needs of its customers. SNGS, LLC proposes to initially inject up to 8 billion cubic feet (Bcf) of natural gas into the Florin Gas Field.

    The proposed project would be located in the southeast portion of the City of Sacramento.
    (see Project Location Map)

    CPUC Application Review

    The CPUC is responsible for the review and approval of any natural gas storage facility in California. In proposals such as this, the CPUC has a two-part review process to evaluate economic and environmental impacts. The CPUC conducts a legal proceeding before an administrative law judge to examine the economic and public utility issues, including impacts to utility ratepayers. At the same time, the CPUC conducts a legal proceeding before an administrative law judge, which may examine the economic and public utility issues, including impacts to utility ratepayers. The ultimate result of the two reviews is a decision by the Commission whether to grant a Certificate of Public Convenience and Necessity for the project.

    Application, Review of Completeness, Proponent's Environmental Assessment (PEA), and Amendments

    SNGSís Application and Proponentís Environmental Assessment (April 9, 2007)

    SNGSís Supplement to Proponentís Environmental Assessment (July 16, 2007)

    SNGS Amendment to Application (September 12, 2008)

    Other Documents Available

    SNGS Application Notice of Completion (April 3, 2008)

    First Deficiency Letter Response (August 10, 2007)

    Second Deficiency Letter Response (Purpose and Need and Selection Criteria [Alternatives])

    Notice of Preparation (November 16, 2007)

    Scoping Report (January 8, 2008)

    Draft EIR Notice of Availability (April 8, 2009)

    Final EIR Notice of Availability (June 10, 2010)

    On April 28, 2009 the CPUC conducted a public meeting regarding the SNGS Draft EIR.  The meeting was held at Depot Park Conference Center in Sacramento, California.  The meeting Agenda, PowerPoint Presentation presented, and Comment Form are available here. A second public participation meeting was held October 27, 2009.

    A letter was mailed to the State Clearinghouse on May 4, 2009 that requests they distribute the Draft EIR to additional agencies.  Letter can be viewed here

    Environmental Impact Report

    Draft EIR (April 2009)

    The CPUC released the Draft Environmental Impact Report (Draft EIR)  for the Proposed Project on April 8, 2009.  The public comment period for this document ended June 22, 2009.

    The original end of the Draft EIR review period was extended from May 25, 2009, to June 22, 2009.   The notice of extension can be viewed here.

    Final EIR (June 2010)

    The CPUC released the Final Environmental Impact Report (Final EIR) for the Proposed Project on June 10, 2010. The Final EIR consists of two volumes: Volume 1, Comments (part 1), and Responses to Comments (part 2), and Volume 2, the Final EIR (revised in strikeout/underline based on comments received during the public review period). Revisions made merely clarify information presented in the Draft EIR. Only minor technical changes or additions have been made. These changes and additions to the EIR do not raise important new issues about significant effects on the environment. Such changes are insignificant as the term is used in Section 15088.5(b) of the CEQA Guidelines.

    Addendum to the Final EIR (July 2011)

    The CPUC prepared an Addendum to the Final EIR for the Proposed Project in July 2011.

    For Additional Information

    To request additional information about this project, please contact us by email, fax, or phone as follows:

    Project email:
    Project fax and voicemail: (800) 371-8797

    The CPUC's Project Manager is:

    Eric Chiang, CPUC Project Manager
    California Public Utilities Commission
    505 Van Ness Avenue
    San Francisco CA 94102
    Tel.: (415) 703-1956

    Fax: (415) 703-1758

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