Document: NUREG-1555
Document ID: 07028c9f-5219-46b4-8c75-bb8fea4e2d2a
Document Type: esrp
Title: DESIGN BASIS ACCIDENTS
Source: NUREG-1555
Source URL: https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1555/initial/
Revision Date: 2007-10
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
f input to the EIS will be governed by the nature of the plant accidents and their impacts on the proposed project. The following information should be included: ` a general discussion of DBAs and the methodology used to calculate realistic dose consequences ` the staff’s findings, relative to this plant, including - the radionuclide inventory of the reactor core at full power - the estimates of the 2-hour dose consequences at the proposed exclusion area boundary and the 30-day consequences in the low-population zone - a comparison of the offsite-dose consequences and health effects estimated by the applicant with those determined for normal and anticipated releases (as obtained from ESRP 5.4.3) ` a conclusion about the degree of environmental impact due to postulated DBAs at this plant. The reviewer should use language similar to that from the preamble to the current 10 CFR 100 that states, if appropriate, The Commission’s use of the value (of 0.25 sievert [25 rem] TEDE) does not imply that it considers it to be an acceptable limit for an emergency dose to the public under accident conditions, but only that it represents a reference value to be used for evaluating plant features and site characteristics intended to mitigate the radiological consequences of accidents in order to provide assurance of low risk to the public under postulated accidents. The Commission, based upon extensive experience in applying this criterion, and in recognition of the conservatism of the assumptions in its application (a large fission product release within containment associated with major core damage, maximum allowable containment leak rate, a postulated single failure of any of the fission product cleanup systems, such as the containment sprays, adverse site meteorological dispersion characteristics, an individual presumed to be located at the boundary of the exclusion area at the centerline of the plume for two hours without protective actions), believes that this criterion