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
CFR Part: 
CFR Title: 

Content:
d 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 descriptions of ESRP 3.3.1 ` consistency with good engineering design (4) Identify and describe nonemergency modes of operation, including the following (as applicable): ` design normal, with estimated monthly maximum, average, and minimum values of the operating parameters ` heat treatment (thermal bio-control) ` de-icing ` reduced intake flow (pump outage) (5) Consider the following operating parameters for each mode of operation: ` intake flow rates ` discharge flow rates ` circulating water (condenser) flow rates ` other major plant system flow rates ` temperature rise across the condenser ` temperature rise across heat exchangers in the service water systems ` heat dissipation system discharge temperatures ` chemical concentration factors for major cooling system components ` frequency and duration of operation for each mode. IV. EVALUATION FINDINGS The depth and extent of the input to the environmental impact statement (EIS) will be governed by the characteristics of the cooling system and plant primary and alternative operational modes and by the nature and magnitude of the expected impacts. The following information should be included in the EIS: ` narrative description of the cooling system ` description of anticipated operational modes. For each mode, provide the important characteristics analyzed (e.g., frequency and duration, discharge temperature, water consumption, and chemical concentration factor). ` cooling system status with respect to Federal Water Pollution Control Act (FWPCA), commonly referred to as the Clean Water Act, certification and NPDES permits. October 1999 3.4.1-5 NUREG-1555 V. IMPLEMENTATION The method described herein will be used by the staff in evaluating conformance with the Commission’s regulations, except in those cases in which