ASTM D5881
Standard Practice for (Analytical Procedures) Determining Transmissivity of Confined Nonleaky Aquifers by Critically Damped Well Response to Instantaneous Change in Head (Slug)
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About This Item
ASTM D5881 is a technical standard for analytical procedures used to determine transmissivity of confined nonleaky aquifers by critically damped well response to an instantaneous change in head, also known as a slug test. It provides a structured way to interpret aquifer behavior from well response data, helping users compare results consistently and support hydrogeologic decision-making. This standard is relevant where reliable field analysis is needed for groundwater assessment, site evaluation, and engineering planning.
ASTM D5881 standard overview
This ASTM standard focuses on the analytical procedures used to estimate transmissivity in confined nonleaky aquifers from a critically damped response following a sudden head change in a well. ASTM D5881 is designed to guide interpretation of test data rather than prescribe field hardware alone, making it useful when consistent analysis is needed across projects. As a technical document, it supports repeatable evaluation of slug test results and helps users apply a recognized method to groundwater characterization.
Where is ASTM D5881 used?
ASTM D5881 is commonly used in groundwater investigations where a confined, nonleaky aquifer is evaluated through well testing. It is relevant to projects that involve monitoring wells, observation wells, or similar test setups where an instantaneous head change can be measured and analyzed. The standard is typically applied in hydrogeologic studies, environmental site work, and engineering assessments that depend on estimating aquifer transmissivity from well response data.
Practical importance of ASTM D5881
In practice, ASTM D5881 helps improve consistency in how slug test results are interpreted, reducing variation between analysts and supporting more defensible conclusions. This can matter for compliance-related documentation, design input, procurement of groundwater services, and quality control during site characterization. By providing a recognized analytical framework, the standard helps users compare results more reliably and reduce uncertainty when evaluating aquifer performance and related engineering decisions.
- Analytical procedure for slug test interpretation
- Transmissivity estimation for confined nonleaky aquifers
- Critically damped well response analysis
- Groundwater investigation and site characterization support
- Consistent technical evaluation of test data
- Publication Date: 2020-07-31
- Publisher: ASTM
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