Document: NUREG-0800
Document ID: da2f79f0-83cc-4bf5-b185-413d87bf27a5
Document Type: srp
Title: 9
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0729/ML072900601.pdf
Revision Date: 2023-06
Chapter: 1
Section ID: 1.0
CFR Part: 
CFR Title: 

Content:
November 2007 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apply to reviews of applications submitted six months or more after the date of issuance of this SRP section, unless superseded by a later revision.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 combined | license (COL) or construction permit (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