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:
e conformity of its actions with SIPs, the applicant should provide the following information in accordance with the 12 steps identified below: 1. If there will be no refurbishment or if refurbishment involves no additional workers, no further analysis is required. 2. Identify the positions of nonattainment and maintenance areas relative to the plant. If there are no nonattainment and maintenance areas within 50 miles (80 kilometers) of the plant, the ER should indicate this, and no further analysis is required. 3 Identify the pollutant or pollutants for which the area is in nonattainment or maintenance, as well as the severity of nonattainment. 4. Determine the meteorological conditions typically associated with poor air quality in each nonattainment and maintenance area. 5. Compare the meteorological conditions associated with poor air quality with regional climatology. 6. Estimate onsite and offsite vehicle emissions resulting from refurbishment activities that contribute to the pollutants identified in step 39, and identify the approximate locations of the emissions during the peak employment period. This estimate may be based on the applicant’s estimate of vehicle miles associated with commuting refurbishment workers, other activities directly associated with refurbishment, and emission factors available in the current mobile source models approved by the EPA Office of Transportation and Air Quality.10 7. Determine whether the emissions related to license renewal activities have a reasonable likelihood of adversely affecting air quality in the nonattainment or maintenance area. Climatological considerations, simple atmospheric dispersion models, and conservative assumptions are appropriate for this screening analysis. For each nonattainment and maintenance area determined to have a reasonable likelihood of being adversely affected, continue the analysis in step 8. No further analysis is required for those areas that were not determined to be adversely