Pacific Gas and Electric Company Requests Extension of Time to Address Comment on Erodibility Assessment

Strategic Insights -

The Pacific Gas and Electric Company (PG&E) has submitted a request to the Federal Energy Regulatory Commission (FERC) for an extension of time to address Comment 1 on the Erodibility Assessment of the Downstream Embankment for the Halsey Afterbay Dam, part of the Drum-Spaulding Hydroelectric Project. The request is based on a revised plan and schedule presented to FERC on May 19, 2025. The extension of time is necessary to address the complexity of the issue and to ensure that the assessment is conducted accurately.

Key Takeaways:

  • PG&E has submitted a request for an extension of time to address Comment 1 on the Erodibility Assessment of the Downstream Embankment for the Halsey Afterbay Dam.
  • The request is based on a revised plan and schedule presented to FERC on May 19, 2025.
  • The assessment is part of the Drum-Spaulding Hydroelectric Project, FERC No. 2310, and involves the Halsey Afterbay Dam, NATDAM No. CA00348.
  • The request includes a reasoned basis for the request, as required by Title 18 of the Code of Federal Regulations, Section 12.40(d).
  • The company has designated Sarah Atmadja, dam safety engineer, as the contact person for technical questions (626-497-6030) and Jackie Pope, license coordinator, as the contact person for general questions (530-254-4007).
  • Michael Dydiw, P.E., Deputy Chief Dam Safety Engineer, submitted the request on behalf of PG&E.

Statistics:

  • The Halsey Afterbay Dam is part of the Drum-Spaulding Hydroelectric Project, FERC No. 2310.
  • The project involves NATDAM No. CA00348.
  • The request was submitted via electronic submittal (E-File) on August 27, 2025.
  • The company's revised plan and schedule were presented to FERC on May 19, 2025.

Sources:

  • Pacific Gas and Electric Company, dated August 27, 2025.
  • Federal Energy Regulatory Commission, Power Generation 300 Lakeside Drive Oakland, CA 94612 Mailing Address: P.O. Box 28209 Oakland, CA 94604.
  • "100 First Street, Suite 2300 San Francisco, CA 94105-3084, dated June 25, 2024.
  • Code of Federal Regulations, Title 18, Section 12.40(d).