Document: NUREG-0800
Document ID: faf774de-7226-41f8-ba11-7cf612907af6
Document Type: srp
Title: GASEOUS WASTE MANAGEMENT SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1306/ML13065A119.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.3
CFR Part: 
CFR Title: 

Content:
the guidance of RG 1.143 and 4.21 for gaseous wastes produced during normal operation and AOOs. The seismic design criteria of equipment and structures housing the GRS are also compared to the design guidance identified in RG 1.143. When applicable, SRP Sections 3.2.1, 3.2.2, 3.3.1, 3.3.2, 3.5.3, 3.7.1 through 3.7.4, 3.8.4, and 3.8.5 will be used to evaluate exceptions. The applicant’s design is reviewed to ensure that it includes adequate provisions to stop continuous leakage paths after an explosion of combustible gas mixtures. The areas of concern are (1) process streams where water decomposition gases (hydrogen and oxygen) exist in a BWR, (2) cover gas streams where air in-leakage can occur in a PWR, and (3) areas where there is a possibility of liquid hydrocarbons and ozone collecting in a cryogenic distillation system. 6. The GRS design, system layout, equipment design, method of operation, and provisions to reduce leakage and to facilitate operations and maintenance are compared to RG 1.143 and 4.21 for gaseous wastes produced during normal operation and AOOs, including adverse vacuum conditions. Special design features provided to control leakage from system components and/or topical reports on system designs will be evaluated on a case-by-case basis. The applicant’s design is compared to RG 1.143, as acceptable guidance related to seismic, safety, and quality group classifications and quality assurance provisions for SSCs systems of the GWMS in treating gaseous wastes and effluents produced during normal operation and AOOs. RG 1.143 provides guidance in assigning safety classifications to structures and radioactive waste management systems in protecting SSCs against natural phenomena and man-induced hazards. For unmitigated releases of radioactive materials, the acceptance criterion of RG 1.143 is 1 mSv (100 mrem) for members of the public assumed to be located at or beyond the restricted area or in unrestricted areas (whichever is most limiting). For