Document: NRC Regulatory Guide
Document ID: f0baf50b-5bb7-4783-b2f9-9586e09c97e1
Document Type: regulatory_guide
Title: Preparation of Environmental Reports for Nuclear Power Stations + HISTORY - HISTORY 02/2017 – DG-4026 , Proposed Revision 3 09/2014 – Periodic Review of Revision 2 – Revise (Rev. 3)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1611/ML16116A068.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.2
CFR Part: 
CFR Title: 

Content:
ate and meaningful evaluation of potential impacts should also be included. Data collection should be consistent with the guidance on baseline studies presented in RG 4.24. • Locations and values of local commercial, subsistence, and recreational fisheries and the historic and current seasonal distributions of harvest by species. • List and description of species essential to the maintenance and survival of commercially or recreationally valuable species. • Presence, distribution, and abundance of key aquatic indicator organisms (e.g., diatoms, benthic macroinvertebrates, submerged aquatic vegetation, and fish) that could be used to gauge changes in habitat quality, biodiversity, and the distribution and abundance of species populations. Key indicator organisms are those that would be particularly vulnerable to impacts on forage or habitat. • Presence of nuisance, invasive, and introduced species, including fish, aquatic vegetation, and benthic invertebrates (e.g., Corbicula spp. or Mytilus spp.) onsite or in the vicinity. • Presence of disease and parasite outbreaks (e.g., viral hemorrhagic septicemia affecting North American salmon and trout, the myxosporean parasite (Myxobolus cerebralis) that causes DG-4026, Page 37 whirling disease, or the marine dinoflagellate responsible for red tide (Karenia brevis)) that could potentially be affected by operations. Important Species and Habitats The ER should provide the following information to characterize important species and habitats as defined in Table 2-1: • A description of important aquatic species or habitat using the guidelines in Table 2-1 and a brief description of why each meets the criteria in Table 2-1. Additional guidance on identifying important species and habitats is provided in RG 4.24. • A brief discussion for each important species (or representative species as indicated in Table 2-1), which considers all life stages necessary to support an assessment of potential effects on the species