Document: NRC Regulatory Guide
Document ID: 01fb3132-b05a-41a0-ab81-466a6fb6f4d3
Document Type: regulatory_guide
Title: Preparation of Environmental Reports for Nuclear Power Plant License Renewal Applications (Rev. 1)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML0916/ML091620409.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.2S1
CFR Part: 
CFR Title: 

Content:
analysis to consider other past, present, and future actions. Table 4.12–1 of the GEIS lists examples of the types of other actions the analysis should consider. • Consider the potential impacting factors of each past, present, or reasonably foreseeable future action or activity. Both the license renewal and other actions (related and nonrelated) will generate factors that could contribute to cumulative impacts. Discuss the impacts of activities associated with the proposed action (license renewal) for each resource area. For some resource areas (e.g., water and aquatic resources), the contributions of ongoing actions within a region on cumulative impacts are regulated and monitored through a permitting process (e.g., NPDES) under State or Federal authority. In these cases, it may be assumed that cumulative impacts are managed as long as these actions (facilities) are in compliance with their respective permits. If, however, the analysis determines that a significant contribution to cumulative impacts would occur as a result of license renewal, the ER should identify measures to ensure that adverse impacts are avoided, minimized, or mitigated. Several recent environmental analyses for license renewal applications have found that overall cumulative impacts in the region of influence of the power plant were significant (e.g., the Oyster Creek plant in New Jersey and the Susquehanna plant in Pennsylvania). 4.12 Severe Accident Mitigation Alternatives Table B-1 states the following: The probability-weighted consequences of atmospheric releases, fallout onto open bodies of water, releases to groundwater, and societal and economic impacts from severe accidents are small for all plants. However, alternatives to mitigate severe accidents must be considered for all plants that have not considered such alternatives. Specifically, 10 CFR 51.53(c)(3)(ii)(L) requires the following: If the staff has not previously considered severe accident mitigation alternatives for the