ASTM WK72178

    Revision of D4106 - 15 Standard Test Method for (Analytical Procedure) for Determining Transmissivity and Storage Coefficient of Nonleaky Confined Aquifers by the Theis Nonequilibrium Method

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    Active Standard: D4106 - 20

    Developed by Subcommittee: D18.21 | Committee D18 | Contact Staff Manager



    aquifer tests; aquifers; control wells; groundwater; hydraulic conductivity; observation wells; storage coefficient; transmissivity;;


    This standard is now in its 5th year since the last approval and is now due for revision/reapproval. Prior ballots had indicated that this standard should be a standard practice rather than a test method, as it only uses the data from another test method. The standard has been changed to a Practice in the title and text to reflect this. No technical changes were made.

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    Date Initiated:

    Technical Contact:
    Keith Rademacher