Radioactive Waste

Holtec cask

High level radioactive waste is stored at Diablo Canyon in pools and in dry casks.  Mothers for Peace is currently in litigation regarding the dry cask storage facility and the potential impact of terrorism on the surrounding environment. (Also see 'security and terrorism.')

2017 - 09-14 Mothers for Peace asks CPUC for Diablo Shut Down in 2019/2020

San Luis Obispo Mothers for Peace (MFP) applauds PG&E for its decision to close the Diablo Canyon nuclear plant. However, our organization asserts that it would be in the best interests of the ratepayers and the citizens of California if the shut-down date were moved forward to 2019/2020, rather than the 2024/2025 dates proposed by PG&E.


San Luis Obispo Mothers for Peace is a party to the California Public Utilities Commission proceeding A1608006, in which Pacific Gas and Electric Company has filed its Joint Proposal to shut down Diablo in 2025 when both operating licenses will expire. Mothers for Peace contends that the plant should close in 2019, thereby avoiding problems related to safety, reliability and costs.

2016 - 07 - 05 Mothers for Peace Will Continue to Advocate for Safety

On June 21, 2016, Pacific Gas and Electric Company (PG&E) announced a Proposal to shut down Diablo Canyon nuclear plant at the end of its current licensing period and to bring renewables on-line. There were a number of organizations that joined with PG&E to work out this plan: International Brotherhood of Electrical Workers Local 1245, Coalition of California UtilityEmployees, Friends of the Earth, Natural Resources Defense Council, Environment California, and Alliance for Nuclear Responsibility

2016 - 06 - 21 PG&E Announces Plans to Shut Down Diablo Canyon

San Luis Obispo Mothers for Peace (SLOMFP) is pleased that on June 21, 2016 Pacific Gas and Electric Company (PG&E) announced plans to withdraw its application for license renewal for the two reactors at Diablo Canyon nuclear plant. The current licenses expire in 2024 and 2025. PG&E’s proposal secures a date certain for the final shutdown of the last nuclear plant in the state of California. Since 2009, when PG&E submitted its license renewal application to the NRC, SLOMFP has opposed the operation of Diablo Canyon on safety and environmental grounds.

2016 - 05 - 19 Proposed Amendments to SB 968

California Senator Bill Monning has put before the California Senate SB 968. Mothers for Peace appreciates his intentions to prepare for the economic impacts of the closure of the Diablo Canyon nuclear plant in the event that it goes off-line before its current licenses expire in 2024 and 2025. However, in order to benefit the workers at the plant and the people of the central coast, we strongly suggest amendments.

2016 - 04 - 26 Comments on Consent-Based Siting to Department of Energy

In 2016 the Department of Energy (DOE) held eight public meetings around the country on the Department’s consent-based siting initiative for facilities to manage the nation’s nuclear waste. The DOE is planning siting facilities to store, transport, and dispose of spent nuclear fuel and high-level radioactive waste.

2016 - 03 - 25 San Luis Obispo Mothers for Peace comments on NRC draft rule related to transportation of radioactive wastes.

Docket ID NRC-2015-0234 NUREG/CR-7209 COMMENTS ON: A Compendium of Spent Fuel Transportation Package Response Analyses to Severe Fire Accident Scenarios, DRAFT San Luis Obispo Mothers for Peace (SLOMFP) wishes to provide the following comments to the NRC’s draft report in the matter of spent fuel transportation safety. SLOMFP is the legal intervenor in matters pertaining to safety at the Diablo Canyon nuclear power plant in Avila Beach, CA.

2016 - 03 - 23 Letter to California Committee on Energy in opposition to SB 968

San Luis Obispo Mothers for Peace is one of 30 organizations going on record as opposing SB 968. That bill as proposed would focus on the adverse economic impacts to be expected when the Diablo Canyon nuclear plant shuts down. It fails to look at the advantages of plant closure or at opportunities for creating jobs by investing in more sources of renewable energy.

2016 - 03 - 23 Thirty Organizations Oppose Diablo Canyon Bill SB 968

Thirty environmental, health and other organizations today announced their opposition to California state legislation that would mandate an analysis of purportedly negative – but not positive – impacts of shutting down the Diablo Canyon nuclear power plant. In a formal opposition letter, the groups say SB 968 could amount to “a state- ordered piece of advocacy for forces pushing for Diablo Canyon to operate far beyond its original design and license life. This could have great negative impacts on California. We recognize that this is not the intent of the author or co- authors, but nonetheless conclude there would be serious unintended consequences of the bill.”