Document: NRC Regulatory Guide
Document ID: 688895c2-d1d9-44f3-9c79-3cf0daa88510
Document Type: regulatory_guide
Title: 
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML0037/ML003739541.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.5
CFR Part: 
CFR Title: 

Content:
ENT SAMPLING AND ANALYSIS OF PLUTONIUM IN SOIL APMENOIX A SOIL SAMPLING AND SOIL SAMPLE PREPARATION No single soil-sampling method is adequate to sample all soil types at all locations. For example, a method designed to sample cohesive sandy loam soil may not be suitable for sampling the dry loose soil common to some arid areas of the U.S. Rocky sofls present problems for all sampling methods. It is necessary, therefore, that each situation be handled on a case-by-case basis and that the procedure be adjusted appropriately in a given situation, Two soil-sampling procedures are described here-the method described in HASL 300, ' which can be used for most soil types, and a more specialized procedure for sampling dry sandy soil. 2 The techniques and principles embodied in these procedures are generally applicable to most situations and should be used as guides for sampling soils at specific sites. " "Procedure ManuaL," HASL 300, Health and Safety Laboratory, U.S. Atomic Energy Commission, 376 Hudson Street, New York, New York. SSoil sampling method used by the Nevada Applied Ecoloay Group at Nevada Test Site, which has been modified by the Regulatory staff. I. HAIL Maldin far SON Sampling and Soil Sample A soi sampling and analysis program provides an "acceptable method of assessing long-term buildup of iong-lived radioactive contaminants in the environment. Surface soll analysis can also serve to define contamination contours or distribution patterns soon after a hypothetical acute airborne release of a contaminant. The latter would require sampling of only the top 5 cm of soil, including the vegetation. Experience indicates that attempts to sample a shallower depth result in les reproducible samples. In many areas, a site meeting the desired criteria has a root mat extending several centimeters into the ground, and it is rarely possible to remove an intact core les than 5 cm in depth. A. Site Selection When soil is sampled as part of a preoperational survey around a