Document: NUREG-1555
Document ID: f52daa09-fd60-41f5-a4d7-437161ee5649
Document Type: esrp
Title: CIRCULATING WATER SYSTEMS
Source: NUREG-1555
Source URL: https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1555/initial/
Revision Date: 2007-10
Chapter: 9
Section ID: 9.4.2
CFR Part: 
CFR Title: 

Content:
ations of proposed system (e.g., up/downstream, alternative water bodies) ` alternative procedures (e.g., screenwash operation, thermal defouling). (c) Consider the following environmental impacts and economic costs or factors for each mitigation measure and class of alternative: ` construction impacts ` impacts to aquatic ecology, including - entrapment - impingement - entrainment - other (site-specific) aquatic impacts. (a) See ESRP 2.3.1 for a definition of the floodplain. October 1999 9.4.2-9 NUREG-1555 ` water-use impacts, including physical impacts resulting from hydrologic alterations (e.g., breakwater construction) and impacts resulting from siting on the floodplain(a) ` compliance with Federal, State, regional, local, and affected Native American tribal regulations or requirements ` capital cost, annual operating and maintenance costs, and total annual costs. (d) Compare the proposed system with those remaining classes of alternatives not eliminated in an initial screening: ` Use a format similar to that shown in Table 9.4.2-1. ` Inputs for this table may be either absolute costs and benefits or incremental costs and benefits referenced to the proposed intake system. ` Additional factors may be included on a site- or system-specific basis. (2) Discharge Systems—To analyze alternative discharge systems, the reviewer should perform the following steps: (a) Consult with the appropriate ESRP Chapter 4.0 and 5.0 reviewers to identify any mitigation measures or alternative discharge systems suggested by these reviewers. (b) Consider the following classes of alternatives: ` alternative discharge systems (e.g., submerged offshore vs. shoreline) and discharge type (e.g., slot, multiport) ` proposed system design modifications (e.g., modified discharge velocity, screens to prevent fish entry) ` alternative locations of proposed discharge system (e.g., up/downstream, alternative water body). (c) Consider the following environmental impacts and economic costs or