Document: NUREG-0800
Document ID: 3cdcec35-dda1-49ce-a003-60e7a1c58ced
Document Type: srp
Title: LOCAL METEOROLOGY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730395.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.2
CFR Part: 
CFR Title: 

Content:
equired. However, an applicant is required to identify differences between the design features, analytical techniques, and procedural measures proposed for its facility and the SRP acceptance criteria and evaluate how the proposed alternatives to the SRP acceptance criteria provide acceptable methods of compliance with the NRC regulations. 1. Local summaries of meteorological data based on onsite measurements in accordance with Regulatory Guide 1.23 and National Weather Service station summaries or other standard installation summaries from appropriate nearby locations (e.g., within 80km (50 miles)) should be presented as specified in Regulatory Guide 1.70, Section 2.3.2, and RG 1.206, Section 2.3.2.1. 2. A complete topographical description of the site and environs out to a distance of 80 kilometers (50 mi) from the plant, as described in Regulatory Guide 1.70, Section 2.3.2.2, and RG 1.206, Section 2.3.2.2, should be provided. 3. A discussion and evaluation of the influence of the plant and its facilities on the local meteorological and air quality conditions should be provided. Applicants should also identify potential changes in the normal and extreme values as presented in the safety analysis report (FSAR), resulting from plant construction and operation. The acceptability of the information is determined through comparison with standard assessments. 4. The description of local site airflow should include wind roses and annual joint frequency distributions of wind speed and wind direction by atmospheric stability for all measurement levels using the criteria provided in Regulatory Guide 1.23. 2.3.2-4 Revision 3 - March 2007 Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraph: GDC 2, or 10 CFR 52.17(a)(1)(vi) for ESP applications, require consideration of the most severe of the natural phenomena. 10 CFR 100.10(c)(2) and 100.20(c)(2)