Document: NUREG-0800
Document ID: bb1a5a83-5b12-456c-b141-1e450c066cff
Document Type: srp
Title: ONSITE METEOROLOGICAL MEASUREMENTS PROGRAM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1818/ML18183A446.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.3.3
CFR Part: 
CFR Title: 

Content:
tions. The ability to obtain a direct readout from the recorders in situ during routine inspection of systems is checked to ensure that the inspector will be able to relate the recorder 2.3.3-12 Draft Revision 4 – September 2018 output directly to the sensor measurement. Some specific criteria are contained in RG 1.23. d. Instrumentation Surveillance Information regarding the inspection, maintenance, and calibration procedures and their frequencies is evaluated. RGs 1.21, “Measuring, Evaluating, and Reporting Radioactive Material in Liquid and Gaseous Effluents and Solid Waste,” (Reference 8), 1.33, “Quality Assurance Program Requirements (Operation),” (Reference 9), 1.97, “Criteria for Accident Monitoring Instrumentation for Nuclear Power Plants,” (Reference 10), and 4.15, “Quality Assurance for Radiological Monitoring Programs (Inception through Normal Operations to License Termination) -- Effluent Streams and the Environment” (Reference 11) discuss the need for procedures and quality assurance requirements for meteorological monitoring programs. The surveillance procedures and the frequency of attention that the instrumentation systems receive are compared to operating experience at the proposed site and other sites with similar instrumentation with the objective of determining that acceptable data recovery, with acceptable accuracy, might be reasonably expected to be obtained throughout the duration of the operational phase of the onsite meteorological monitoring program. The ability of instrumentation systems to function throughout the course of accidents is also evaluated. Additional information is provided in ANSI/ANS-3.11-2015, EPA-454/R-99-005 (Reference 12) and EPA-454/B-08-002 (Reference 13). Criteria for acceptable system accuracy and acceptable data recovery are specified in RG 1.23 e. Data Acquisition and Reduction The methods used for data acquisition, processing, and validation (automated and manual) are evaluated. Since there are