Document: NRC Regulatory Guide
Document ID: 94d9f3d5-978d-4aea-9ba7-486ca7f8503a
Document Type: regulatory_guide
Title: Standard Format and Content of Decommissioning Cost Estimates for Nuclear Power Reactors
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0131/ML013100099.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.202
CFR Part: 
CFR Title: 

Content:
ted format for providing this information is shown in Table 3. The inventory should be a summary of components, not an itemized listing. ! Maps or diagrams showing areas of concrete and metal surfaces that require radiological decontamination. Instead of maps or diagrams, the licensee may find 14 it more convenient to provide a list of contaminated surfaces. A suggested format for this list is provided in Table 4. Maps or diagrams, if provided, should be large scale and provide a summary of contamination information. A listing, if provided, should be a summary. Detailed survey maps or itemized listings of contaminated areas are not required. ! A summary description, based on the records of information important to decommissioning required by 10 CFR 50.75(g), of any events that occurred during the plant’s operating lifetime that resulted in the release of contamination and the mitigating actions taken to clean up the release. Experience at decommissioning plants suggests that interviewing long-term employees about potentially contaminated areas may provide useful information. The description should also include information on the involved nuclides, quantities, forms, and concentrations. • A summary of available characterization information (i.e., location, extent, radionuclides/chemicals involved, ranges from sampling, if available) on known or suspected environmental (e.g., soil, groundwater, and surface water) contamination. ! A summary description of structures or equipment in the restricted area where radioactive materials were used or stored and the locations of possible inaccessible contamination. 3.3 Detailed Schedule (Gantt Chart or Equivalent) of Decommissioning Activities The schedule should include all the elements of the work breakdown, phases of interim safe storage, labor requirements (person-hours), and key milestones. The schedule would be expected to contain such associated activities as: • Planning and preparation • Characterization survey