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County panel reviews federal, state and local oversight for Diablo Canyon
Summary
San Luis Obispo County hosted a public information session where federal and state regulators and county officials explained that the Nuclear Regulatory Commission (federal) and multiple California agencies oversee Diablo Canyon, while the county's role centers on emergency preparedness and public engagement.
San Luis Obispo County supervisors opened an information session on Diablo Canyon, emphasizing the plant's decades-long role as a large local employer and its implications for emergency preparedness and community engagement. “We are the host community,” Supervisor Dawn Ortiz Legg said, urging residents to weigh the plant’s economic role alongside safety and transparency.
County Chief Executive Matt Pontus and Assistant Chief Executive Kate Valentine outlined how oversight is divided: the Nuclear Regulatory Commission (NRC) governs federal nuclear safety and recently renewed Diablo Canyon’s operating licenses through 2044–2045, while California agencies — notably the California Public Utilities Commission, the Coastal Commission, State Lands Commission and regional water boards — exercise review within their statutory areas. “These are complementary decisions, not conflicting ones,” Valentine said, explaining why state approvals and timelines (including references to SB846 and pending state actions) differ from federal licensing.
NRC resident inspector Mattie Hayes briefed the audience on federal oversight and inspection practices, saying the plant currently sits in the NRC’s baseline oversight (green) column and noting that the NRC plans an initial report (including a capsule Bravo review) scheduled for public issuance in Adams in October 2026. “We have two resident inspectors on-site every day,” Hayes said, underscoring continuing on-site federal oversight.
The county stressed its responsibilities for off-site emergency planning and public information — not direct plant regulation. The briefing reiterated coordination with FEMA and state emergency partners and promised county-led public engagement as state-level decisions proceed. The session closed with reminders of the multiple review layers and a call for informed public input as state lawmakers consider the facility’s future.
