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:
-specific and will be addressed by the COL applicant. However, pursuant to 10 CFR 52.47(a)(1), a DC applicant must provide site parameters postulated for the design. The reviewer verifies that: 1. The postulated site parameters are representative of a reasonable number of sites that have been or may be considered for a COL application; 2. The appropriate site parameters are included as Tier 1 information. This convention has been used by previous DC applicants. Additional guidance on site parameters is provided in SRP Section 2.0; 3. Pertinent parameters are stated in a site parameters summary table; and 4. The applicant has provided a basis for each of the site parameters. The staff should ensure that the DC applicant has included EAB, LPZ, and control room atmospheric dispersion factors for the appropriate time periods in the list of site parameters. The DC application should also contain figures and tables showing the design features that would be used by the COL applicant to generate control room χ/Q values (e.g., intake heights, release heights, building cross- sectional areas, distance to receptors). If any straight-line horizontal distances of less than 10 meters from a release location to the environment to a receptor have been proposed, the staff should attempt to impress upon the applicant that it is good engineering practice to design and maintain some distance of separation (e.g., more than 10 meters) between potential release pathways and potential intake pathways to the control room. 2.3.4-12 Revision 3 - March 2007 c. Combined License Reviews For a COL application referencing a certified standard design, NRC staff reviews that application to ensure that sufficient information is presented to demonstrate that the characteristics of the site fall within the site parameters specified in the DC rule. Should the actual site characteristics not fall within the certified standard design site parameters, the COL applicant will need to demonstrate by some