Document: NUREG-0800
Document ID: 0b3174a2-1530-473d-8cf7-024c17b62e52
Document Type: srp
Title: LONG-TERM ATMOSPHERIC DISPERSION ESTIMATES FOR ROUTINE RELEASES
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730713.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.5
CFR Part: 
CFR Title: 

Content:
ewer verifies that the applicant has provided sufficient information and that the review and calculations (if applicable) support conclusions of the following type to be included in the staff's safety evaluation report. The reviewer also states the bases for those conclusions. 1. Construction Permit, Operating License, and Combined License Reviews The following statements should be preceded by a summary of the long term (routine release) atmospheric dispersion estimates used for the plant: Based on the meteorological data provided by the applicant and an atmospheric dispersion model that is appropriate for the characteristics of the site and release points, the staff concludes that representative atmospheric dispersion and deposition factors have been calculated for 16 radial sectors from the site boundary to a distance of 50 miles (80 kilometers) as well as for specific locations of potential receptors of interest. The characterization of atmospheric dispersion and deposition conditions are acceptable to meet the criteria described in Regulatory Guide 1.111 and are appropriate for the evaluation to demonstrate compliance with the numerical guides for doses contained in Subpart D of 10 CFR Part 20 and Appendix I to 10 CFR Part 50. 2. Early Site Permit Reviews The following statements should be preceded by a summary of the long term (routine release) atmospheric dispersion site characteristics and design parameters to be included in any ESP that might be issued for the ESP site: As set forth above, the applicant has provided meteorological data and an atmospheric dispersion model that is appropriate for the characteristics of the site and release points. Therefore, the staff concludes that representative atmospheric dispersion and deposition conditions have been calculated for specific locations of potential receptors of interest. The characterization of atmospheric dispersion and deposition conditions satisfies the criteria described in Regulatory Guide 1.111 and