Document: NRC Regulatory Guide
Document ID: 2654196f-c25a-40d1-8edc-e828353b6377
Document Type: regulatory_guide
Title: Standard Format and Content of Environmental Reports for Near-Surface Disposal of Radioactive Waste + HISTORY - HISTORY 04/1982 – Draft WM 013-4
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1218/ML12187A698.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.18
CFR Part: 
CFR Title: 

Content:
racy. 5.1.2 Hydrology and Water Quality Describe the source of baseline ground-water data presented in Section 2.4.1. Provide a map of the site area showing the location of test holes, wells, springs, ditches, and drains used for the collection of baseline data. The location of lysimeters and tensionmeters in the unsaturated zone should also be shown on the map. Provide a summary table for the sampling locations shown on the map with the following information: 1. Ground elevation, drilled depth, intake depths, and elevations for wells; 2. Frequency and period of sampling; and 3. Water quality and hydrologic parameters measured. Explain the rationale for the number and location of sampling points. Statistical analyses of data should be used to show that the baseline water quality parameter has been accurately characterized. Possible correlations of the water quality parameters with soil moisture and water table elevation should also be investigated. Measurements of water table and soil moisture should be sufficient to estimate the expected variations in these parameters throughout the life of the facility. 24 Also discuss precautions taken to avoid contamination of aquifers when installing monitoring wells or test holes in two aquifer systems. If a body of surface water may be affected by the proposed activities, describe the programs by which the background condition of the water and the related ecology were determined. If a natural water body has already been subjected to environmental stress from pollutant sources, evaluate the nature of this stress and its consequences. Estimate the potential quality of the affected water body. 5.1.3 Terrestrial Environment In this section, discuss the program used to assess the ecological charac- teristics of the site with primary reference to important species identified in Section 2.2. Those portions of the program concerned with determining the presence and abundance of important amphibious species should be detailed in terms