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:
rea to be disturbed during building (both onsite and offsite) and the construction use of the site or project areas (e.g., laydown, spoils stockpile or disposal, concrete batch plant, module assembly, temporary roads, or parking) relative to the as-built proposed structure locations. • Extent, equipment, and methods for land clearing, grading, and excavation. • Depths of excavations, particularly deep excavations that could require dewatering; and width and depth of trenches (e.g., for pipelines). • In-water and nearshore activities (e.g., dredging, excavation, dewatering, filling, and impoundments). • Equipment and methods should be described, as well as extent and duration of shoreline and in- water disturbance and any temporary structures (e.g., cofferdams, barge moorings, and silt curtains). DG-4026, Page 58 • Source of water for building purposes, estimated rate and quantity of water use, and proposed wastewater-management practices for building activities. • Source and quantity of fill material for construction purposes. 3.4 Operational Activities The applicant should describe the type of activities involved in operating the proposed plant and the associated structures and facilities described in Section 3.2. Descriptions should provide sufficient detail to assess specific effects of all operating systems on the environment. All modes of operation should be described, including normal operation, refueling, and emergency shutdown situations. Seasonal and operational variations that change amounts of water intake or discharge, gaseous effluent releases, or other potential environmental releases should be discussed. 3.4.1 Plant-Environment Interfaces during Operation The applicant should describe plant design and heat-dissipation system parameters and their associated site interface values, clearly indicating the units of measure for the interface value and whether the value is for a single unit or all proposed units. The applicant should also