ASTM D5920/D5920M
Standard Practice for (Analytical Procedure) Tests of Anisotropic Unconfined Aquifers by Neuman Method
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About This Item
ASTM D5920/D5920M is the standard practice for analytical procedure tests of anisotropic unconfined aquifers by the Neuman method. It provides a technical framework for evaluating aquifer behavior when flow properties differ by direction, which is important for groundwater analysis and engineering decisions. As an ASTM standard, it supports more consistent interpretation of test results and helps users apply a recognized procedure for comparing field data in a controlled, repeatable way.
What is ASTM D5920/D5920M?
This standard practice describes an analytical procedure for testing anisotropic unconfined aquifers using the Neuman method. In practical terms, ASTM D5920/D5920M is used to structure how test data are analyzed so aquifer characteristics can be interpreted more consistently. The title indicates a focus on unconfined conditions and directional differences in hydraulic behavior, making the document relevant where groundwater response must be evaluated with a recognized analytical approach rather than informal estimation.
Where is ASTM D5920/D5920M used?
ASTM D5920/D5920M is commonly used in hydrogeologic work involving aquifer tests, groundwater investigations, and site characterization where unconfined conditions are present. It may be applied by professionals evaluating pumping or recovery data, particularly when the aquifer exhibits anisotropic behavior. The standard is useful in workflows that require a documented analytical method for interpreting field measurements and comparing results across projects, studies, or compliance-related assessments.
Why is ASTM D5920/D5920M important?
This practice matters because aquifer test interpretation can affect engineering decisions, water-resource assessments, and project risk. ASTM D5920/D5920M helps promote consistency in how anisotropic unconfined aquifer data are analyzed, which can support better-quality comparisons and more defensible conclusions. For procurement, compliance, and technical review purposes, having a recognized ASTM document also helps standardize expectations for testing procedures and result interpretation.
- Analytical procedure for Neuman method testing
- Focused on anisotropic unconfined aquifers
- Supports groundwater data interpretation
- Useful for aquifer test analysis workflows
- Helps improve consistency and comparability
- Publication Date: 2020-12-17
- Publisher: ASTM
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