Document: NUREG-0800
Document ID: 4e1c316a-99c2-4fd3-9d9b-323791bd85f8
Document Type: srp
Title: SHORT-TERM ATMOSPHERIC DISPERSION ESTIMATES FOR ACCIDENT
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730398.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.4
CFR Part: 
CFR Title: 

Content:
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 short-term (post-accident) atmospheric dispersion estimates used for the plant: The staff concludes that the applicant’s atmospheric dispersion estimates are acceptable and meet the relevant requirements of 10 CFR 100.11(a) [or 10 CFR 100.21(c)(2)]. This conclusion is based on the conservative assessments of post-accident atmospheric dispersion conditions that have been made by the applicant and the staff from the applicant's meteorological data and appropriate diffusion models. These atmospheric dispersion estimates are appropriate for the assessment of consequences from (1) radioactive releases for design basis accidents in accordance with 10 CFR 50.34(a)(1)(ii)(D) [for CP or OL reactor applications on or after January 10, 1997], 10 CFR 52.79(a)(1)(vi) [for COL applications], 10 CFR 100.11(a) [or 10 CFR 100.21(c)(2)] and (2) onsite and offsite releases of radiological and hazardous materials in accordance with General Design Criterion 19. 2. Early Site Permit Reviews The following statements should be preceded by a summary of the short-term (post-accident) 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 presented and substantiated information to establish short-term (post-accident) atmospheric dispersion site characteristics. The staff has reviewed the information provided and, for the reasons given above, concludes that the applicant has established site characteristics and design parameters acceptable to meet the requirements of 10 CFR 52.17(a)(1)(ix) and 10 CFR 100.21(c)(2). 3. Design Certification Reviews The following statement should be preceded by a list of the applicable short-term (post-accident) site parameters used for the plant: The applicant