ML26043A250
| ML26043A250 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon, Humboldt Bay  |
| Issue date: | 02/02/2026 |
| From: | Christopher Markley Office of Nuclear Material Safety and Safeguards |
| To: | Soenen P Pacific Gas & Electric Co |
| Shared Package | |
| ML26043A277 | List: |
| References | |
| EPID L-2017-FPR-0021, EPID L-2017-FPR-0034 | |
| Download: ML26043A250 (0) | |
Text
From:
Chris Markley To:
Philippe.Soenen@pge.com Cc:
Yoira Diaz Sanabria; Tilda Liu
Subject:
ANALYSIS OF PACIFIC GAS AND ELECTRIC COMPANYS UPDATED DECOMMISSIONING FUNDING PLANS FOR THE DIABLO CANYON AND HUMBOLDT BAY INDEPENDENT SPENT FUEL STORAGE INSTALLATIONS Date:
Monday, February 2, 2026 11:13:00 AM Attachments:
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NOTE THAT THIS EMAIL WILL BE ENTERED INTO NRC ADAMS AS PUBLICLY AVAILABLE DOCUMENT.
TO: Philippe Soenen, Director, Strategic Initiatives Pacific Gas & Electric Company Diablo Canyon Power Plant P.O. Box 56 Avila Beach, CA 93424
SUBJECT:
ANALYSIS OF PACIFIC GAS AND ELECTRIC COMPANYS UPDATED DECOMMISSIONING FUNDING PLANS FOR THE DIABLO CANYON AND HUMBOLDT BAY INDEPENDENT SPENT FUEL STORAGE INSTALLATIONS
By letters dated December 16, 2024 (ML24351A244) and December 5, 2024 (ML24340A216), Pacific Gas and Electric Company (PG&E) submitted updated decommissioning funding plans (DFP) for the Diablo Canyon and Humboldt Bay Independent Spent Fuel Storage Installation (ISFSI), respectively, for U.S. Nuclear Regulatory Commission (NRC) staff review. Pursuant to Title 10 of the Code of Federal Register (CFR) 72.30(c), at the time of license renewal and at intervals not to exceed three years, the initial DFP required to be submitted by 10 CFR 72.30(b) must be resubmitted with adjustments as necessary to account for changes in costs and the extent of contamination in an updated DFP. The updated DFP must update the information submitted with the original or prior approved plan. In addition, the updated DFP must also specifically consider the effect of the following events on decommissioning costs, as required by 10 CFR 72.30(c)(1)-(4): (1) spills of radioactive material producing additional residual radioactivity in onsite subsurface material, (2) facility modifications, (3) changes in authorized possession limits, and (4) actual remediation costs that exceed the previous cost estimate.
The NRC staff reviewed PG&Es 2024 updated DFPs, including the updated decommissioning cost estimates (DCEs) and the method of assuring funds for decommissioning, in accordance with 10 CFR 72.30(c) and NUREG-1757, Vol. 3, Rev. 1, Consolidated Decommissioning Guidance. Based on the review, the NRC staff finds that the updated DFPs contains the information required by 10 CFR 72.30(c) and that PG&E has provided reasonable assurance by which funds will be available to decommission the ISFSI at Diablo Canyon and Humboldt Bay. Therefore, the NRC staff finds that the DCEs adequately estimated the cost, at this time, to carry out required ISFSI decommissioning activities prior to license termination, and that the DCEs are reasonable.
If you have any questions regarding this matter, please contact me at (301) 415-6293 or via email at Christopher.Markley@nrc.gov.
Docket Nos:
Diablo Canyon: 72-26, 50-275, 50-323 Humboldt Bay: 72-27, 50-133 EPID Nos.:
Diablo Canyon: L-2017-FPR-0021 Humboldt Bay: L-2017-FPR-0034
Thank you,
-Chris
Christopher T. MARKLEY PhD l Systems Performance Analyst l Office of Nuclear Materials Safety and Safeguards l Division of Fuel Management l Storage and Transportation Licensing Branch United States Nuclear Regulatory Commission l Washington, DC 20555-0001 l
(: christopher.markley@nrc.gov l (: (301) 415-6293 l (: (301) 415-0020 l