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SB 931

Diablo Canyon nuclear powerplant: Community Impacts Mitigation Program.

2025-2026 Regular Session Introduced by Dawn Addis and 1 co-sponsor

SB 931 requires Diablo Canyon nuclear plant to fund community mitigation programs addressing operational impacts on local residents and environment.

Read second time and amended. Re-referred to Com. on APPR.
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Bill Summary · SB 931

Legislative bill overview

SB 931 establishes a Community Impacts Mitigation Program for the Diablo Canyon nuclear power plant in California. The bill requires the plant operator to fund and implement measures addressing negative community effects from the facility's operations, including environmental, economic, and public health impacts.

Why is this important

Diablo Canyon is one of California's last operating nuclear plants and serves as a major employer and electricity source in San Luis Obispo County. This bill seeks to create formal accountability mechanisms for the plant's local effects—both positive and negative—as the state weighs extended operations versus eventual decommissioning.

Potential points of contention

  • Funding responsibility: Debate over whether operational costs for mitigation should fall entirely on the utility or be shared with state/federal government and ratepayers
  • Scope of impacts: Disagreement on which harms qualify (seismic safety concerns, water usage, radioactive waste storage, property values) versus plant benefits (jobs, tax revenue, carbon-free power)
  • Enforcement mechanisms: Uncertainty about whether mitigation programs have binding timelines and penalties for non-compliance, or are merely advisory

Compiled from official sources — confirm details with the bill’s official record.

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