ASTM-D6982 2022(Redline)

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D6982-22 Standard Practice for Detecting Hot Spots Using Point-Net (Grid) Search Patterns (Redline)

Published By	Publication Date	Number of Pages
ASTM	2022	10

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Categories: 13.020.99 - Other standards related to environmental protection, ASTM

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Description

ASTM D6982-22

Redline Standard: Standard Practice for Detecting Hot Spots Using Point-Net (Grid) Search Patterns

ASTM D6982

Scope

1.1 This practice provides equations and nomographs, and a reference to a computer program, for calculating probabilities of detecting hot spots (that is, localized areas of soil or groundwater contamination) using point-net (that is, grid) search patterns. Hot spots, more generally referred to as targets, are presumed to be invisible on the ground surface. Hot spots may include former surface impoundments and waste disposal pits, as well as contaminant plumes in groundwater or the vadose zone.

1.2 For purposes of calculating detection probabilities, hot spots or buried contaminants are presumed to be elliptically shaped when projected vertically to the ground surface, and search patterns are square, rectangular, or rhombic. Assumptions about the size and shape of suspected hot spots are the primary limitations of this practice, and must be judged by historical information. A further limitation is that hot spot boundaries are usually not clear and distinct.

1.3 In general, this practice should not be used in lieu of surface geophysical methods for detecting buried objects, including underground utilities, where such buried objects can be detected by these methods (see Guide D6429).

1.4 Search sampling would normally be conducted during preliminary investigations of hazardous waste sites or hazardous waste management facilities (see Guide D5730). Sampling may be conducted by drilling or by direct-push methods. In contrast, guidance on sampling for the purpose of making statistical inferences about population characteristics (for example, contaminant concentrations) can be found in Guide D6311.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

preliminary investigation; sampling; site investigation; soil investigation; subsurface exploration; systematic sampling;

ICS Code

ICS Number Code 13.020.99 (Other standards related to environmental protection)

DOI: 10.1520/D6982-22

Additional information

Standard Title	D6982-22 Standard Practice for Detecting Hot Spots Using Point-Net (Grid) Search Patterns (Redline)
Published Code	ASTM
Publication Date	2022
Pages Count	10
ICS Codes	13.020.99 - Other standards related to environmental protection