Diablo Conyon Nuclear Power Plant Decommissioning Project Conditional Use Permit and Coastal Development Permit ED2021-174 / DRC2021-00092

2 Documents in Project


SCH Number
Lead Agency
San Luis Obispo County
Document Title
Diablo Conyon Nuclear Power Plant Decommissioning Project Conditional Use Permit and Coastal Development Permit ED2021-174 / DRC2021-00092
Document Type
NOP - Notice of Preparation of a Draft EIR
Present Land Use
Public Facilities / Coastal Zone
Document Description
Pacific Gas and Electric has applied for a San Luis Obispo County Development Plan/Coastal Development Permit and Conditional Use Permit for the Diablo Canyon Nuclear Power Plant Decommissioning Project located in unincorporated area along the coast between Avila Beach and Los Osos. Decommissioning activities include demolition, grading, site restoration and removal of hazardous and non-hazardous waste, to occur over a 15-year period in 2 phases (~2024-2039). PG&E will retain an Owner-Controlled Area with existing facilities to remain including an existing ISFSI and 500kV and 230kV electrical switchyard. New construction includes a guardhouse, indoor firing range and a new GTCC facility within the Owner-Controlled Area. Waste transport for decommissioning would be via barge, truck and rail. Three rail yard sites are to be considered, located in (1) City of Pismo Beach, (2) County of Santa Barbara, and (3) City of Santa Maria. The EIR will consider possible future site re-use concepts as part of the CEQA analysis. Five EIR Scoping Meetings are planned to be held in virtual format. Please see the attached Notice of Preparation And Notice of EIR Scoping Meetings for a detailed description of the proposed project activities. Additional Information can be found at: https://www.slocounty.ca.gov/Departments/Planning-Building/Grid-Items/Community-Engagement/Active-Planning-Projects/Diablo-Canyon-Nuclear-Power-Plant-Decommissioning.aspx

Contact Information

Susan Strachan, Diablo Decommissioning Project Manager
Agency Name
County of San Luis Obispo Planning and Building Department
Contact Types
Lead/Public Agency

Thomas Jones, Pacific Gas and Electric Company
Agency Name
Contact Types
Project Applicant


Avila Beach URL, Pismo Beach, Santa Maria
San Luis Obispo, Santa Barbara
Countywide, Southern California, Unincorporated
Cross Streets
Diablo Canyon Road 7 miles west of Avila Beach Drive
Total Acres
Parcel #
076-011-018, 076-011-032 (portion)
State Highways
Diablo Creek, Pacific ocean

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Conservation (DOC), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of State Parks, Division of Boating and Waterways, California Department of Transportation, District 5 (DOT), California Department of Water Resources (DWR), California Energy Commission, California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Central Coast Region 3 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance, California Native American Heritage Commission (NAHC), California Department of Fish and Wildlife, Central Region 4 (CDFW)
State Reviewing Agency Comments
California Native American Heritage Commission (NAHC), California Department of Fish and Wildlife, Central Region 4 (CDFW)
Development Types
Other (Decommissioning a nuclear-powered electrical generation facility)
Local Actions
Use Permit, Coastal Permit
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Coastal Zone, Cultural Resources, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from state reviewing agencies]

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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