Document: NUREG-0800
Document ID: 31337ac3-66c6-42b1-b9e0-1655cad200d1
Document Type: srp
Title: ONSITE METEOROLOGICAL MEASUREMENTS PROGRAMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070232.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.3
CFR Part: 
CFR Title: 

Content:
heric dispersion estimates for both postulated accidental and expected routine airborne releases of effluents and for 2.3.3-3 DRAFT Rev. 3 - April 1996 comparison with offsite sources to determine the appropriateness of climatological data used for design considerations. The criteria for an acceptable onsite meteorological measurements program are documented in the Regulatory Position, Section C, of Regulatory Guide 1.23. 2. The following additional criteria are used to judge the acceptability of meteorological data summaries for atmospheric dispersion estimates: (Reference 7)13 a. For the preliminary safety analysis report (PSAR) or early site permit application, at least one annual cycle of onsite meteorological data should be 14 provided at docketing. b. For the final safety analysis report (FSAR) or COL application, at least two 15 consecutive annual cycles, including the most recent 1-year period, should be provided at docketing. 3. To meet the requirements specified in 10 CFR 50.47 and Appendix E to 10 CFR Part 50, equipment shall be installed to determine the magnitude, and to assess the impact, of a release of airborne radioactive material to the environment on a continuous basis. Accordingly, onsite meteorological monitoring equipment must be able to function throughout the course of an accident. Additional criteria and guidance necessary to verify adequate dose projection capability during radiological emergencies using real- time meteorological information, as required by 10 CFR 50, Appendix E are applied under the reviews described in the Review Interfaces in subsection I.16 Meteorological data should be presented in the form of joint frequency distributions of wind speed and wind direction by atmospheric stability class in the format described in Regulatory Guide 1.23. A listing of each hour of the hourly-averaged parameters should be provided on magnetic tape in the format described in Appendix A to this Standard Review PlanSRP 17 18 section. Evidence