Document: NUREG-0800
Document ID: 3fb60cd0-45bd-4552-8abf-91e7331fff72
Document Type: srp
Title: POPULATION DISTRIBUTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550028.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.1.3
CFR Part: 
CFR Title: 

Content:
distribution as described in Section 2.1.3.4 of Regulatory Guide 1.70. The current and projected population data for the LPZ should include transients (e.g., workers, occupants of schools, hospitals, recreational facilities, and others who do not permanently reside in the area). The branch responsible for the review of emergency management determines the acceptability of the LPZ with respect to the protective measures that could be taken on behalf of the population within the LPZ in the event of a radiological emergency. That branch should transmit a memorandum stating this finding to the primary branch for use in preparing the staff’s safety evaluation report. 4. Nearest Population Center Boundary: The staff should verify that the distance to the nearest population center is at least one and one-third times the distance to the outer boundary of the LPZ, as required by 10 CFR Part 100. The reviewer should evaluate the bases used by the applicant to establish the boundary of the nearest population center. The population center boundary should be established at that point nearest the plant where, in the reviewer’s judgment, the population density may grow to a value comparable to the density of the community itself. Population density is the controlling criterion, and the corporate boundary of the community is not limiting. Communities that are closer to the plant than the design population center should also be evaluated to determine the likelihood that their population will grow to greater than 25,000 people within the lifetime of the existing or proposed power plant. The reviewer should use available data on land use, land use controls such as zoning, and the potential for growth to determine the potential growth in population. In cases where the nearest population center is a very large city, a greater distance than the one and one-third factor may be required, and appropriate additional compensating engineered safeguards may be necessary. The staff will