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:
er transport system, including annual costs of water as delivered to the plant and costs associated with any necessary water treatment. (d) Use a format similar to that shown in Table 9.4.2-3 for this comparison. Data for this table may be prepared either as absolute benefits and costs or as incremental benefits and costs referenced to the proposed water source. (4) Water Treatment System—To analyze water treatment systems, the reviewer should perform the following steps: October 1999 9.4.2-11 NUREG-1555 (a) Consider alternatives on the basis of systems that avoid or minimize the use of chemicals, use lesser quantities of or less toxic chemicals, or do not discharge chemical wastes directly to the environment. (b) Unless an adverse impact attributable to the proposed plant service water treatment system has been identified, restrict this analysis to alternative circulating water treatment systems. (c) Consult with the reviewer for ESRP 3.3.3 to determine proposed water treatment systems and with the reviewer for ESRP 5.3.2.2 to determine potential impacts of discharged chemicals to aquatic biota. (d) Consider the following classes of alternatives: ` alternative water treatment systems (e.g., mechanical vs. chemical) ` modifications to the proposed system (e.g., alternative chemicals, alternative discharge points) ` alternative operating procedures (e.g., shock treatment vs. continuous chemical addition, modified cooling tower concentration factors). (e) Determine the following environmental and economic costs or factors for each of the above classes of alternatives: ` impacts to aquatic ecology (e.g., chemical toxicity) ` land-use impacts (e.g., evaporation ponds) ` water-use impacts (e.g., increased water use to achieve lower discharge chemical concentrations) ` compliance with Federal, State, regional, local, and affected Native American tribal regulations or requirements ` capital costs, annual operating and maintenance costs, and total annual costs. (f)