Site-wide seismic risk model for Savannah River Site nuclear facilities
- Los Alamos Technical Associates, Inc., Idaho Falls, ID (United States)
- Westinghouse Savannah River Co., Aiken, SC (United States)
The 200,000 acre Savannah River Site (SRS) has nearly 30 nuclear facilities spread throughout the site. The safety of each facility has been established in facility-specific safety analysis reports (SARs). Each SAR contains an analysis of risk from seismic events to both on-site workers and the off-site population. Both radiological and chemical releases are considered, and air and water pathways are modeled. Risks to the general public are generally characterized by evaluating exposure to the maximally exposed individual located at the SRS boundary and to the off-site population located within 50 miles. Although the SARs are appropriate methods for studying individual facility risks, there is a class of accident initiators that can simultaneously affect several of all of the facilities, Examples include seismic events, strong winds or tornados, floods, and loss of off-site electrical power. Overall risk to the off-site population from such initiators is not covered by the individual SARs. In such cases multiple facility radionuclide or chemical releases could occur, and off-site exposure would be greater than that indicated in a single facility SAR. As a step towards an overall site-wide risk model that adequately addresses multiple facility releases, a site-wide seismic model for determining off-site risk has been developed for nuclear facilities at the SRS. Risk from seismic events up to the design basis earthquake (DBE) of 0.2 g (frequency of 2.0E-4/yr) is covered by the model. Present plans include expanding the scope of the model to include other types of initiators that can simultaneously affect multiple facilities.
- Research Organization:
- Westinghouse Savannah River Co., Aiken, SC (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 10192651
- Report Number(s):
- WSRC-MS-93-193; CONF-9303221-1; ON: DE93040907; TRN: 93:022918
- Resource Relation:
- Conference: Probabilistic safety assessment and management (PSAM) conference,San Diego, CA (United States),20-24 Mar 1993; Other Information: PBD: 1993
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
SAVANNAH RIVER PLANT
SAFETY ANALYSIS
SEISMIC EFFECTS
SEISMIC EVENTS
MATHEMATICAL MODELS
PUBLIC HEALTH
RISK ASSESSMENT
RADIONUCLIDE MIGRATION
ENVIRONMENTAL TRANSPORT
HAZARDOUS MATERIALS
054000
540250
HEALTH AND SAFETY
SITE RESOURCE AND USE STUDIES