Document: NRC Regulatory Guide
Document ID: eb3f5778-b26b-4ba0-9962-f7101bddfff7
Document Type: regulatory_guide
Title: (Rev. 3005)
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML0037/ML003739900.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.8
CFR Part: 
CFR Title: 

Content:
nd direction)d 2 samples from locations (in different sectors) having the highest offsite ground-level concentrations 1 sample from the residence having the highest X/O as well as 1 community within a 10-mile radius of the facility 1 sample from a control location (10-20 miles distant and in the least prevalent wind direction) Samples from the same locations as for air particulates plus 5 additional locations 2 or more dosimeters to be placed at the same locations as for air particulates, as well as 2 additional control locations (selected on a basis similar to the 2 air sample control locations) 2 or more dosimeters to be placed at each of 3 other locations (different sectors) of highest calculated offsite ground-level dose 900 .,= Radioiodine Soilf DIRECT \ TABLE 2 (Continued) Exposure Pathway 1 Numbe" of Samples& Sampling and Type and Frequency and/or Sample and Locations I Collection Frequency of Analysis WATERBORNE Surfaceg Ground Drinking AQUATIC Sediment & Indicator Organisms k Sediment from Shoreline INGESTION Milk 1 sample upstream 1 sample in immediate area of discharge 1 or 2 samples from sources most likely to be affected J 1 sample from ground water source upgradient 1 sample of each of 1 to 3 supplies obtained within 10 miles of the facility which could be affected by its discharge, or the first supply within 100 miles if none exists within WO miles 1 sample upstream from discharge point 1 sample in immediate downstream area of discharge point' 1 sample at downstream impoundment 1 sample from downstream area with existing or potential recreational value 1 sample at the offsite dairy farm or individual milk animal at the location having the highest x/Q 1 sample from milking animals in each of 3 areas where doses are calculated to be greater than 1 mrem per year Composite sample h,1 Quarterly Composite sample' Semiannually Semiannually Weekly or semimonthly depending on calculated dosem Gamma isotopic analysis monthly. Composite for tritium and Sr-89 -90