ASTM D5855-95(2000) - 10.12.1995
 
1. Scope

1.1 This test method covers an analytical solution for determining transmissivity and storage coefficient of a leaky or nonleaky confined aquifer. It is used to analyze data on the flow rate from a control well while a constant head is maintained in the well.

1.2 This analytical procedure is used in conjunction with the field procedure in Practice D 5786.

1.3 LimitationsThe limitations of this technique for the determination of hydraulic properties of aquifers are primarily related to the correspondence between field situation and the simplifying assumption of the solution.

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

D653-26a

Standard Terminology Relating to Soil, Rock, and Contained Fluids (Includes all amendments and changes 6/15/2026).

D6026-21

Standard Practice for Using Significant Digits and Data Records in Geotechnical Data

D5786-17

Standard Practice for (Field Procedure) for Constant Drawdown Tests in Flowing Wells for Determining Hydraulic Properties of Aquifer Systems (Withdrawn 2026)

D4043-17(2026)e1

Standard Guide for Selection of Aquifer Test Method in Determining Hydraulic Properties by Well Techniques (Includes all amendments and changes 7/17/2026).