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:
e resulting χ/Q and D/Q values are provided to the organization responsible for the review of the calculated concentrations and dose consequences of routine airborne radioactive releases as discussed in SRP Section 11.3. 5. Review Procedures Specific to 10 CFR Part 52 Application Type a. Early Site Permit Reviews Subpart A to 10 CFR Part 52 specifies the requirements and procedures applicable to the Commission’s review of an ESP application for approval of a proposed site. Information required in an ESP application includes a description of the site characteristics and design parameters of the proposed site. The scope and level of detail of review of data parallel that used for a CP review. The applicant’s ESP site characteristics should include the maximum χ/Q and D/Q values calculated at the specific locations of potential receptors of interest (e.g., site boundary, nearest vegetable garden, nearest resident, nearest milk animal, and nearest meat animal). If the exact plant configuration and location is not known at the ESP stage, the maximum χ/Q and D/Q values at specific locations of potential receptors of interest should be based on conservative assumptions (e.g., ground level releases with vent flow rates of zero). The staff should also issue a COL Action Item stating that a COL or CP applicant should verify specific release point characteristics and specific location of potential receptors of interest used to generate the ESP long-term (routine release) atmospheric dispersion site characteristics. The applicant’s ESP site characteristics need not include annual average χ/Q and D/Q values for 16 radial sectors from the site boundary to a distance of 50 miles (80 kilometers) from the plant. Compliance with Section II.D of Appendix I to 10 CFR 50 need not be demonstrated at the ESP stage. However, the ESP SSAR should include this information in order to avoid providing additional atmospheric dispersion estimates at the COL or CP stage. In the absence