Document: NUREG-1555
Document ID: c1ef667f-166c-4e3f-b473-8ab0f97b61c5
Document Type: esrp
Title: WATER TREATMENT
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: 3.3.2
CFR Part: 
CFR Title: 

Content:
ing the adverse impacts. If an environmental assessment of aquatic impacts is available from the permitting authority, the NRC will consider the assessment in its determination of the magnitude of the environmental impacts in striking an overall benefit-cost balance. When no such assessment of aquatic impacts is available from the permitting authority, the NRC (possibly in conjunction with the permitting authority and other agencies having relevant expertise) will establish its own impact determination. ` Because water quality and water supply are interdependent, changes in water quality must be considered simultaneously with changes in water supply. In Jefferson County PUD #1 vs. Department of Ecology (U.S. Supreme Court Case), the States were granted additional authority to limit hydrological alterations beyond the State’s role in regulating water rights. ` Regulatory Guide 4.2, Rev. 2, Preparation of Environmental Reports for Nuclear Power Stations (NRC 1976), contains guidance on the format and content of ERs, including hydrology, water-use, and water-quality issues. Technical Rationale The technical rationale for evaluating the applicant’s water treatment description is discussed in the following paragraph: A detailed and thorough description of the plant water treatment system is essential for the evaluation of potential impacts to the environment that may result from plant, construction, or operation. III. REVIEW PROCEDURES The reviewer’s analysis of water treatment should be closely linked with the impact assessment review of ESRPs 4.2 and 5.2 to establish which water-treatment systems and processes have a potential for environmental impact. With this in mind, the reviewer should take the following steps when analyzing the proposed water treatment systems, to the extent needed to prepare a description of the purpose and nature of each system: Note: The principal types of treatment systems that should be described include those necessary to condition