Document: NUREG-1555
Document ID: 62bf53b4-c75d-48ce-825c-84c032fa32be
Document Type: esrp
Title: AQUATIC 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: 4.3.2
CFR Part: 
CFR Title: 

Content:
struction practices. The reviewer should evaluate alternatives for any proposed construction activity that is predicted to result in an adverse impact that cannot be mitigated. The depth and extent of the input to the EIS will be governed by the attributes of the aquatic ecological resources that could be affected by plant construction and operation, and by the nature and magnitude of the expected impacts to these resources. The reviewer should screen each predicted impact using criteria appropriate to the impacted segment of the ecosystem. The following should be evaluated by the reviewer for inclusion in the EIS: ` loss of habitat for endangered or threatened species in the context of guidelines under the Endangered Species Act of 1973. If 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% of such habitat in the site vicinity will have negligible impact on the crop and need no further analysis. Where losses exceed 5%, the reviewers should consider the loss in relation to regional abundance of these species. ` construction practices to minimize soil erosion and the number of hectares disturbed October 1999 4.3.2-11 NUREG-1555 ` the clearing of vegetation from stream banks, making certain that it is limited to that necessary for placement of structures ` the applicant’s commitment to the use of best management practices ` alternatives to mitigate such impacts, such as using a fish hatchery and habitat restoration to increase natural fish production, if the applicant’s ER reveals a potential significant impact on fish populations ` lost “important” aquatic species and habitats from the viewpoints of their uniqueness within the region under consideration, relative impacts, and long term net effects - The assessments of relative impacts should include statements expressed in percentage terms in which the amount of