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:
d to consider the economic costs of any such alternative. The reviewer should estimate the capital, operating, and maintenance costs for each circulating water system component considered and for each component of the proposed system. The reviewer should use these data to estimate total annual costs for each system and should use these annual costs for economic-cost comparisons. The reviewer should determine if there are any site-specific factors that might affect the costs of any alternative and should factor these increased or reduced costs into the comparison. As necessary, these cost estimates should consider allowances for additional maintenance costs when it can be shown (e.g., by operating experience) that system reliability will be lower than expected for the proposed system. This analysis should be done in consultation with appropriate reviewers for ESRPs 10.4.1 through 10.4.3. Assistance from these reviewers should be requested to establish the economic-cost data used to develop a benefit- cost comparison with the baseline (proposed) circulating water system. In this analysis, the reviewer should consider alternatives to the following components of the plant circulating water system: (1) intake systems (2) discharge systems (3) water supply (4) water treatment. The analysis should consider only those alternatives that are applicable at the proposed site and compatible with the proposed heat dissipation system.(a) The following procedure for developing the analysis of alternative circulating water systems considers both environmental and economic cost factors. In following this procedure, the reviewer should initially consider only the environmental factors and should repeat the procedure for economic factors only for those alternatives shown to be environmentally preferable by the evaluation procedures of this ESRP. Initial Environmental Screening The reviewer should consider the following factors in the initial environmental screening of each alternative