Document: NUREG-0800
Document ID: 0c49d5f5-63ea-428c-831c-9e32e79e6bd3
Document Type: srp
Title: GROUNDWATER
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340557.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.12
CFR Part: 
CFR Title: 

Content:
the adequacy of the cooling water supply for emergency and long-term shutdown decay heat removal be assured, taking into account information concerning the physical, including hydrological, properties of the materials underlying the site. To meet the requirements of the hydrologic aspects of 10 CFR Part 100 and its Appendix A, the following specific criteria are used. For SAR Section 2.4.12.1: A full, documented description of regional and local groundwater aquifers, sources, and sinks is required. In addition, the type of groundwater use, wells, pump and storage facilities, and the flow require- ments of the plant must be described. If groundwater is to be used as an essential source of water for safety-related equipment, the design basis for protection from natural and accident phenomena must compare with Regulatory Guide 1.27 guidelines. Bases and sources of data must be adequately described. To meet the requirements of the hydrologic aspect of 10 CFR Part 100, the following specific criteria are used. For SAR 2.4.12.2: A description of present and projected local and regional groundwater use must be provided. Existing uses, including amounts, water levels, location, drawdown, and source aquifers must be discussed and should be tabulated. Flow directions, gradients, velocities, water levels, and effects of potential future use on these parameters, including any possibility for reversing the direction of groundwater flow, must be indicated. Any potential groundwater recharge area within the influence of the plant and effects of construction, including dewatering, must be identified. The influence of existing and potential future wells with respect to groundwater beneath the site must also be discussed. Bases and sources of data must be described and referenced. For SAR Section 2.4.12.3: The need for and extent of procedures and measures to protect present and projected groundwater users, including monitoring programs, must be discussed. These items are