Document: NUREG-0800
Document ID: ceac06f7-ebea-4976-a910-068dc5a7df37
Document Type: srp
Title: 12
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1127/ML112730393.pdf
Revision Date: 2023-06
Chapter: 1
Section ID: 1.0
CFR Part: 
CFR Title: 

Content:
Revision 2 – December 2011 specified portions of the Commission=s regulations, the staff will use the method described herein to evaluate conformance with Commission regulations. The provisions of this SRP section apply to reviews of applications submitted 6 months or more after the date of issuance of this SRP section, unless superseded by a later revision. VI. DEFINITIONS The following definitions are used in the context of ESPs: Site Characteristics: Based on site investigation, exploration, analysis and testing, the applicant initially proposes a set of site characteristics. These site characteristics are the actual physical, environmental and demographic features of a site. Site characteristics, if reviewed and approved by the staff, are specified in the ESP. In general, site characteristics may fall into one of four categories, namely: (1) severe natural phenomena (e.g., tornado wind speed, probable maximum flood, maximum groundwater levels); (2) physical features of the site (e.g., soil strength, topography); (3) boundaries or locations controlled by the applicant (e.g., exclusion area boundary, low population zone); and (4) characteristics relating to nearby human activities (e.g., χ/Q for the nearest resident, meat animal, or vegetable garden; distances to nearby man-made hazards to the new plant). Plant Parameter Envelope: A plant parameter envelope (PPE) sets forth postulated values of design parameters that provide design details to support the NRC staff's review of an ESP application. A controlling PPE value, or bounding parameter value, is one that necessarily controls the value of a site characteristic. As the PPE is intended to bound multiple reactor designs, the actual design selected in a COL or CP application referencing an ESP would be reviewed to ensure that the design fits within the bounding parameter values. Otherwise, the COL or CP applicant would need to demonstrate that the design, given the site characteristics in the ESP, complies