Document: NUREG-1555
Document ID: c5012ace-4e02-4365-8e19-adad51f2d654
Document Type: esrp
Title: TERRESTRIAL ECOSYSTEMS
Source: NUREG-1555
Source URL: https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1555/initial/
Revision Date: 2007-10
Chapter: 4
Section ID: 4.3.1
CFR Part: 
CFR Title: 

Content:
so evaluate alternatives for any proposed construction activity that is predicted to result in an adverse impact that cannot be mitigated. Practices proposed by the applicant for the protection of the environment should be described if the reviewer determines that they are necessary. The depth and extent of the input to the EIS should be governed by the attributes of the terrestrial ecological resources that could be affected by plant construction and operation, and by the nature and magnitude of the expected impacts to those resources. However, the following should be evaluated for inclusion by the reviewer in the EIS: ` loss of habitat for endangered or threatened species in the context of guidelines under the Endangered Species Act of 1973. Where loss of habitat for commercially or recreationally important species occurs, the reviewer should consider the effects on the harvestable crop. It should generally be concluded that loss of up to 5 percent of such habitat in the site vicinity will have negligible impact on the crop and need no further analysis. Where losses exceed 5 percent, the reviewer should consider the loss in relation to regional abundance of these species. ` construction practices to minimize soil erosion and the number of hectares disturbed ` the clearing of vegetation from stream banks, making certain that it is limited to that necessary for placement of structures ` the CWA amendments of 1972, the Coastal Zone Management Act of 1972, and the Marine Protection, Research, and Sanctuaries Act of 1972. Guidelines under the Acts should be followed in evaluating the significance of dewatering wetlands. Because of the importance of wetlands, any unavoidable impact to this habitat must be considered in the overall benefit-cost balancing. ` the intrusion on or destruction of terrestrial plant communities that are regarded as representative of natural, undisturbed, or remnant communities or that show unusual ecological or geographical distributions, and