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:
, and size of temporary and permanent retention/detention ponds, diversion structures, or other hydrological alterations). • Site layout with the location and dimensions (e.g., area and height above grade) of structures and support facilities (e.g., switchyard, laydown areas, parking areas, future independent spent fuel storage installation, warehouses, and training facilities), including offsite support facilities and substations. Indicate permanent and temporary areas of land disturbance. • Heat-dissipation system flow diagram; design, size, and location of cooling towers, cooling lakes or ponds, spray canals or ponds. • Creation or modification of any water storage (reservoir) or cooling pond, including dams or dikes. For any water-storage facility, describe the total and usable storage capacity, surface area, evaporation rate, flow control structures or components, and associated water transfer systems (e.g., refill, withdrawal and conveyance). • Water-intake systems, including plan view and cross-sectional view scale drawings. The description should include location, size, height, and depth of structure; number and size of intake bays and pumps; screen types and sizes; type of screen cleaning system; fish-return system; and associated pipelines or other conveyance structures. • Water discharge system, including plan view and cross-sectional view scale drawings. The description should include the location and type of discharge structure(s) including depth below surface and relationship to bottom of receiving waterbody; discharge receiving area alterations; and associated pipelines or other conveyance structures. • Other water systems (e.g., service, fire, potable, and sanitary systems) with source, delivery, and discharge (if applicable) identified. DG-4026, Page 57 • Well structures (use, depth, diameter, construction, location, pumping rate or discharge rate for injection wells). • Supplemental water sources, onsite or offsite (location,