Document: NUREG-0800
Document ID: 9f13abda-ee55-4fa1-8276-db55ac2094ef
Document Type: srp
Title: CONTROL ROOM HABITABILITY SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070449.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.4
CFR Part: 
CFR Title: 

Content:
g and Geosciences Branch (ECGB) will evaluate potential sources of hazardous gas as part of its primary review responsibility for SRP Section 2.2.1-2.2.2. The ECGB will provide SPLB with a description of the sources, source location, estimated hazardous gas concentrations near the control room building, and probability estimates for accidental releases related to transportation.10 6.4-3 DRAFT Rev. 3 - April 1996 b. The PERB reviews radiation shielding and exposures as part of its primary review responsibility for SRP Sections 12.1 through 12.5.11 c. The PERB determines radiation levels external to the control room from design basis accidents (DBAs) as part of its primary review responsibility for SRP Section 15.6.5, Appendix A.12 d. The PERB provides estimates related to the dispersion of airborne contamination as part of its primary review responsibility for SRP Sections 2.3.4 and 2.3.5.13 e. The Technical Specifications Branch (TSB) reviews technical specifications as part of its primary review responsibility for SRP Section 16.0.14 A secondary review is performed by the Effluent Treatment Systems Branch (ETSB) and the Siting Analysis Branch (SAB) and the results are used by AEB in its overall evaluation of the control room habitability. ETSB reviews the iodine removal efficiencies of the control room atmosphere filtration system. The efficiencies are transmitted to AEB for use in the analysis and are referenced in the SER. The evaluation of the potential hazardous gas sources is performed by the SAB under SRP Section 2.2. The SAB will provide AEB with a description of the sources. In those cases where the identified sources are found to have the potential for incapacitating people in the vicinity of the control room building, the SAB will provide AEB with source location, estimated hazardous gas concentrations near the control room building, and probability for the releases with respect to transportation accidents. In addition, AEB will coordinate the evaluation