Document: NUREG-0800
Document ID: a397b98f-e122-4d15-8471-5259fb45b58b
Document Type: srp
Title: and BTP 11-6 since the use of durable and passive design features would provide
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1305/ML13051A458.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.2
CFR Part: 
CFR Title: 

Content:
em and components assumed to fail as permanently installed process equipment, including the interface of skid-mounted mobile processing systems, as justified, 3) process or waste streams selected, BTP 11-6-8 Draft Revision 4 – August 2014 4) location of failed tank and components in plant buildings and at outdoor locations, if applicable, 5) nominal volume of failed tank and components, 6) failed fuel fraction applied in deriving radioactivity inventory, if different than default value of SRP guidance, 7) radionuclide re-concentration factors applied in deriving radioactivity inventory, as mandated by the selected process or specific waste streams, 8) assumed radionuclide distributions and concentrations and total radioactivity inventory in tanks and components of systems located indoors and outdoors, 9) for systems located indoors, description of the release mechanism starting from the room or cubicle housing such systems to the underlying ground immediately below the building’s foundation boundary, 10) for systems located outdoors, description of the release mechanism starting from the retention basin or diked area to the nearest point of entry into the site’s surface water runoff discharge system and location of its outfall in unrestricted areas, and groundwater if a pathway exists, 11) assumed dilution, retardation factors, and travel times in instances where groundwater or surface water models were not used to describe the transport of radioactivity from the site to the point of entry in unrestricted areas, and 12) assumed dilution factors applied beyond the point of entry in unrestricted areas in instances where groundwater or surface water models were not used to describe the movement of radioactivity between the point of entry into unrestricted areas and location of dose receptors. In assigning radionuclide distributions and concentrations for the relevant exposure scenario, the staff should consider whether the site conceptual model defines the