Document: NRC Regulatory Guide
Document ID: 687c884d-2807-4ca3-ac21-69b87c59f4ab
Document Type: regulatory_guide
Title: Use of ARCON Methodology For Calculation Of Accident-Related Offsite Atmospheric Dispersion Factors
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2116/ML21165A005.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.249
CFR Part: 
CFR Title: 

Content:
given data source are listed below. These are not intended to be an all-inclusive list. Additional issues may be identified by an applicant or the NRC staff during pre-application meetings, subsequent agency review of any application submittals, or project execution. Use of alternative meteorological data should include the following technical details, as applicable: DG-4030, Page 9 a. identification and rationale for the selection of each offsite meteorological monitoring location to be used (including station name and type and, for applications where a proposed site is known, the distance and direction of the station from the site, as well as differences in ground elevation at the site and each station); b. how a modeling analysis will be performed if meteorological data from more than one offsite or onsite station will be used; c. listing of pertinent measurements made at each offsite location and associated information (e.g., details pertaining to tower siting, tower and measurement heights, instrument types and performance specifications, instrument exposure, sampling frequency and recording of output, data reduction and processing, data averaging (if applicable) and methods, instrument and system surveillance frequency, and other quality assurance activities); d. guidance followed in conducting the offsite monitoring program(s), for example: (1) RG 1.23 (2) American National Standards Institute (ANSI)/American Nuclear Society (ANS) ANSI/ANS-3.11-2015, “Determining Meteorological Information at Nuclear Facilities” (Ref. 14) (3) EPA-454/R-99-005, “Meteorological Monitoring Guidance for Regulatory Modeling Applications,” issued February 2000 (Ref. 15) (4) EPA-454/B-08-002, “Quality Assurance Handbook for Air Pollution Measurement Systems, Volume IV: Meteorological Measurements,” Version 2.0, issued March 2008 (Ref. 16) (5) Interagency Council for Advancing Meteorological Services, Federal Meteorological Handbook(s) (Ref. 17) e. identification and