Document: NUREG-1555
Document ID: 71e35073-327e-4683-aa43-b361ce1d32b0
Document Type: esrp
Title: HEAT DISSIPATION 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: 9.4.1
CFR Part: 
CFR Title: 

Content:
consistent with NPDES restrictions. (3) Alternative Heat dissipation Systems—The initial step in the evaluation of those alternative heat dissipation systems identified by the analysis procedure of this ESRP should be to categorize these systems as environmentally preferable, equivalent, or inferior to the proposed heat dissipation system 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 heat dissipation-system 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 requirements. The reviewer should not indicate a preference between environmentally equivalent alternatives nor should benefit-cost balancing be made when this condition prevails. Alternatives having unavoidable adverse environmental impacts or that do not meet CWA requirements should be judged environmentally inferior to proposed heat dissipation systems meeting these conditions. ` When the reviewer determines that the proposed heat dissipation system will meet CWA requirements, but is predicted to have unavoidable adverse environmental impacts, the reviewer should evaluate the identified alternative systems for potential environmental preference to the proposed system. The scope and extent of this evaluation should depend on the nature and magnitude of the proposed system’s environmental impacts. An environmental review for the alternatives may be needed following the analysis and evaluation procedures of the appropriate ESRP