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
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CFR Title: 

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(2) will serve the environmental impact statement needs of these agencies, and (3) are consistent with the requirements of the CWA. Measures and Controls to Limit Adverse Impacts October 1999 9.4.2-13 NUREG-1555 When considering measures identified by the reviewers for ESRP Chapters 4.0 and 5.0 to mitigate adverse environmental impacts predicted for the proposed circulating water system, the reviewer’s verification of the desirability of the measure should lead to the following conclusions: ` The measure provides the desired mitigation and does not introduce other adverse environmental impacts not predicted for the proposed system. ` The measure will result in an overall benefit-cost balance equivalent to or better than that of the proposed project. ` The measure is not precluded by Federal, State, regional, local, or affected Native American tribal regulations, requirements, or ordinances. ` The measure is consistent with NPDES restrictions. Alternative Circulating Water Systems The initial step in evaluating those alternative intake systems, discharge systems, water supplies, or water treatment systems identified by the analysis procedure of this ESRP should be to categorize these systems as environmentally preferable, equivalent, or inferior to the proposed circulating water systems as modified by measures and controls to limit adverse impacts. The following criteria should be applied to this evaluation: ` When the reviewer determines that the proposed system (with mitigation measures, if necessary) will have no unavoidable adverse impacts and the system will comply with the requirements of the CWA, the reviewer should conclude that there are no environmentally preferable alternatives. When this conclusion is reached, the reviewer should evaluate the alternatives to identify those that may be considered environmentally equivalent. For this condition, environmental equivalence means that an alternative has no unavoidable adverse impacts and meets CWA