You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    ASTM D5269 - 15

    Standard Test Method for Determining Transmissivity of Nonleaky Confined Aquifers by the Theis Recovery Method

    Active Standard ASTM D5269 | Developed by Subcommittee: D18.21

    Book of Standards Volume: 04.08


      Format Pages Price  
    PDF 5 $43.00   ADD TO CART
    Hardcopy (shipping and handling) 5 $43.00   ADD TO CART
    Standard + Redline PDF Bundle 10 $51.60   ADD TO CART


    Significance and Use

    5.1 This test method is useful for analyzing data on the recovery of water levels following pumping or injection of water to or from a control well at a constant rate. The analytical procedure given in this test method along with several others is used in conjunction with the field procedure in Test Method D4050.

    5.2 Assumptions: 

    5.2.1 The well discharges at a constant rate, Q, or at steps of constant rate Q1, Q2 ... Qn.

    5.2.2 Well is of infinitesimal diameter and is open through the full thickness of the aquifer.

    5.2.3 The nonleaky aquifer is homogeneous, isotropic, and extensive in area.

    5.2.4 Discharge from the well is derived exclusively from storage in the aquifer.

    5.2.5 The geometry of the assumed aquifer and well are shown in Fig. 1.

    5.3 Implications of Assumptions: 

    5.3.1 Implicit in the assumptions are the conditions of radial flow. Vertical flow components are induced by a control well that partially penetrates the aquifer, that is, not open to the aquifer through the full thickness of the aquifer. If vertical flow components are significant, the nearest partially penetrating observation well should be located at a distance, r, beyond which vertical flow components are negligible. See 5.3.1 of Test Method D4106 for assistance in determining the minimum distance to partially penetrating observation wells and piezometers.

    5.3.2 The Theis method assumes the control well is of infinitesimal diameter. The storage in the control well may adversely affect drawdown measurements obtained in the early part of the test. See 5.3.2 of Test Method D4106 for assistance in determining the duration of the effects of well-bore storage on drawdown.

    5.3.3 Application of Theis Recovery Method for Unconfined Aquifers: 

    5.3.3.1 Although the assumptions are applicable to artesian or confined conditions, the Theis solution may be applied to unconfined aquifers if (A) drawdown is small compared with the saturated thickness of the aquifer or if the drawdown is corrected for reduction in thickness of the aquifer and (B) the effects of delayed gravity yield are small. See 5.3.3 of Test Method D4106 for guidance in treating reduction in saturated thickness and delayed gravity drainage in unconfined aquifers.

    Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.

    1. Scope

    1.1 This test method covers an analytical procedure for determining the transmissivity of a confined aquifer. This test method is used to analyze data from the recovery of water levels following pumping or injection of water to or from a control well at a constant rate.

    1.2 The analytical procedure given in this test method, along with several others, is used in conjunction with the field procedure in Test Method D4050. Guide D4043 provides information for determining hydraulic properties.

    1.3 Limitations—The valid use of the Theis recovery method is limited to determination of transmissivities for aquifers in hydrogeologic settings reasonably corresponding to the assumptions of the Theis theory (see 5.2).

    1.4 Units—The values stated in either SI Units or inch-pound units are to be regarded separately as standard. The values in each system may not be exact equivalents; therefore each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method.

    1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026. All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026, unless otherwise superseded by this standard.

    1.6 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D653 Terminology Relating to Soil, Rock, and Contained Fluids

    D4043 Guide for Selection of Aquifer Test Method in Determining Hydraulic Properties by Well Techniques

    D4050 Test Method for (Field Procedure) for Withdrawal and Injection Well Tests for Determining Hydraulic Properties of Aquifer Systems

    D4105 Test Method for (Analytical Procedure) for Determining Transmissivity and Storage Coefficient of Nonleaky Confined Aquifers by the Modified Theis Nonequilibrium Method

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

    D4750 Test Method for Determining Subsurface Liquid Levels in a Borehole or Monitoring Well (Observation Well)


    ICS Code

    ICS Number Code 93.160 (Hydraulic construction)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/D5269-15

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D5269-15, Standard Test Method for Determining Transmissivity of Nonleaky Confined Aquifers by the Theis Recovery Method, ASTM International, West Conshohocken, PA, 2015, www.astm.org

    Back to Top