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:
r BWRs, the offgas noble gas release rate should be determined assuming 30-minute decay within the offgas system. The design basis fuel defect level for PWRs and noble gases release rate for BWRs were reviewed using the guidance in SRP Sections 11.1 and 11.3, as radioactive source terms to the primary and secondary coolant and reactor steam. The staff has determined that under these conditions, the concentrations of radioactive materials in gaseous effluents released in unrestricted areas will comply with the concentration limits specified in Table 2, Column 1, and Note 4 of Appendix B to 10 CFR Part 20. In making the above determination for radioiodines and noble gases, the staff has considered TS limits for I-131 and Xe-133 dose equivalent concentrations in the primary and secondary coolants, as defined in the plant TS. 4. The staff has reviewed the sources of radiation and radioactivity and associated doses to members of the public and concludes that annual doses from all sources of radioactivity and radiation from the site (which may have either single or multiple reactor units), including liquid and gaseous effluents and external radiation exposures from buildings and storage tanks, and N-16 skyshine from BWR turbine buildings as sources of external radiation, will not exceed the EPA generally applicable environmental radiation standards of 40 CFR Part 190 as implemented under 10 CFR Part 20.1301(e). SER Section 12.3-12.4 evaluates the doses associated with external radiation from buildings and sources of radioactivity contained in systems and components, including N-16 skyshine from BWR turbine buildings. 5. The applicant has met the requirements of GDC 60 and 61 with respect to controlling releases of radioactive materials to the environment through the use of automatic control features in terminating gaseous effluent discharges or diverting process flows to systems for storage and decay or further processing, as needed. In controlling releases to the