Document: NUREG-1555
Document ID: 20e944e3-f29f-4c1a-9bb1-d68275b2cab7
Document Type: esrp
Title: DESCRIPTION AND OPERATIONAL MODES
Source: NUREG-1555
Source URL: https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1555/initial/
Revision Date: 2007-10
Chapter: 3
Section ID: 3.4.1
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CFR Title: 

Content:
kes, and outflows that may be associated with the facility ` 10 CFR 50.34 with respect to a description and analysis of the structure, systems, and components of the facility. Regulatory positions and specific criteria necessary to meet the regulations identified above are as follows: ` Regulatory Guide 4.2, Rev. 2, Preparation of Environmental Reports for Nuclear Power Stations (NRC 1976), addresses the inclusion of information about the reactor and power conversion system. Technical Rationale The technical rationale for evaluating the applicant’s description of the proposed cooling system and its operational modes is discussed in the following paragraph: The cooling system presents a major source of interaction with the environment and of possible impacts. The environmental impacts caused as a result of operation of the cooling system at a nuclear power plant depend largely on the type of cooling system and system alternatives, if such exist, to accommodate load changes or adverse conditions. A thorough description of the system and the proposed operational modes allows an objective examination of the potential impacts to the environment. This section is descriptive in nature. The description of the external appearance of the cooling system and its operational modes should be in sufficient detail to form an adequate base for staff analysis of the potential impacts of construction or operation. III. REVIEW PROCEDURES For the review of the cooling system description and operational modes, the reviewer should take the following steps: (1) Ensure that sufficient information on plant operational modes is available to define cooling system performance for each identified mode of operation. NUREG-1555 3.4.1-4 October 1999 (2) Verify that plant water consumption and flow-rate data are consistent with the water-use analysis prepared by the reviewer for ESRP 3.3.1. (3) Analyze the overall cooling-system design for the following: ` compatibility with the water-use