Document: NUREG-0800
Document ID: ecaaf87c-d5d4-431d-ae8f-8c1afc037312
Document Type: srp
Title: PROCESS AND EFFLUENT RADIOLOGICAL MONITORING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070612.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.5
CFR Part: 
CFR Title: 

Content:
trumented monitoring or for the sampling and analyses of all normal and potential effluent pathways for release of radioactive materials to the environment, including nonradioactive systems that could become radioactive through interfaces with radioactive systems, to meet General Design Criterion GDC 64. 29 To meet Criterion GDC 64 and the requirements specified in 10 CFR 50.34(f)(2)(xvii) and 10 CFR 50.34(f)(2)(xxvii), the design of systems should meet the provisions of 30 Regulatory Guide 1.21 (Position C and Appendix A) (Ref. 2), Regulatory Guide 1.97 31 (Position C and Table 1 or Table 2, as applicable) (Ref. 3), and Regulatory Guide 4.15 32 (Position C) (Ref. 4).33 a. The gaseous and liquid process streams or effluent release points should be monitored and sampled according to Tables 1 and 2. b. For both BWRs and PWRs boiling water reactors (BWRs) and pressurized water reactors (PWRs), liquid wastes and confined volumes of gaseous waste should 34 be sampled batchwise prior to release, in accordance with Regulatory Guide 1.21. Continuous gaseous effluent monitors are not required for open structures, such as PWR turbine buildings or atmospheric vents for liquid waste tanks containing treated or processed liquid waste and located outside of buildings. For liquid and gaseous effluents that cannot be practicably monitored or sampled batchwise, one of the following methods of representative sampling should be provided: (1) A continuous proportioning sampling system with at least two sample collection tanks. The system should be designed to provide a fixed or measured flow ratio of the sample collected to the sampled stream discharge; or, alternatively, (2) A periodic automatic grab sampling system with at least two sample collection tanks. The system should be designed to collect a fixed volume of sample at a rate proportional to the measured flow in the sampled stream discharge. (3) Radioactive materials other than noble gases in gaseous effluents. A continuous