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:
e definitions of vicinity and region as defined for the land use sections of the ER. The baseline description should focus on the anticipated footprint of land disturbance and may be less detailed for peripheral areas. Much of the needed information may be summarized from the background reports prepared using RG 4.11. Information should be updated to reflect recent land-use changes and natural successional processes. Terrestrial Habitats Detailed guidance on identifying and describing terrestrial habitats is provided in RG 4.11. The ER should include the following information to characterize terrestrial habitats: DG-4026, Page 33 • Identification and description of each ecoregion (or equivalent) encompassed by the site, offsite parcels and corridors, vicinity, and region using a widely recognized system such as that used by the EPA (EPA Ecoregion maps). • Figures identifying and mapping each terrestrial habitat on, or adjacent to, the site (or offsite parcels or corridors). • Description of each terrestrial habitat type using guidance provided in RG 4.11. Detailed field survey or quantification of vegetation characteristics may not be necessary. Descriptions based on recent site observations are typically more useful than older or regionalized descriptions. Studies would ideally show the condition of the ecological resources that exist no more than 5 to 10 years prior to NRC receiving the application. If older ecological baseline data is used, a discussion of the basis for determining that the data provides for an accurate and meaningful evaluation of potential impacts should also be included. • Tables estimating the area of each habitat onsite (or offsite parcels or corridors). • A table estimating the approximate area (or percentage) of each habitat type in the vicinity (or some other meaningful subset of the landscape surrounding the site). • A qualitative discussion of terrestrial habitat in the region. Wetlands Wetlands are specialized habitats with