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ASTM International - ASTM D5270-96(2014)

Standard Test Method for Determining Transmissivity and Storage Coefficient of Bounded, Nonleaky, Confined Aquifers

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Organization: ASTM International
Publication Date: 1 February 2014
Status: inactive
Page Count: 7
ICS Code (Water of natural resources): 13.060.10
significance And Use:

5.1 Assumptions:

5.1.1 The well discharges at a constant rate.

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

5.1.3 The... View More

scope:

1.1 This test method covers an analytical procedure for determining the transmissivity, storage coefficient, and possible location of boundaries for a confined aquifer with a linear boundary. This test method is used to analyze water-level or head data from one or more observation wells or piezometers during the pumping of water from a control well at a constant rate. This test method also applies to flowing artesian wells discharging at a constant rate. With appropriate changes in sign, this test method also can be used to analyze the effects of injecting water into a control well at a constant rate.

1.2 The analytical procedure in this test method is used in conjunction with the field procedure in Test Method D4050.

1.3 Limitations-The valid use of this test method is limited to determination of transmissivities and storage coefficients for aquifers in hydrogeologic settings with reasonable correspondence to the assumptions of the Theis nonequilibrium method (see Test Method D4106) (see 5.1), except that the aquifer is limited in areal extent by a linear boundary that fully penetrates the aquifer. The boundary is assumed to be either a constant-head boundary (equivalent to a stream or lake that hydraulically fully penetrates the aquifer) or a no-flow (impermeable) boundary (equivalent to a contact with a significantly less permeable rock unit). The Theis nonequilibrium method is described in Test Methods D4105 and D4106.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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.

Document History

ASTM D5270-96(2014)
February 1, 2014
Standard Test Method for Determining Transmissivity and Storage Coefficient of Bounded, Nonleaky, Confined Aquifers
5.1 Assumptions: 5.1.1 The well discharges at a constant rate. 5.1.2 Well is of infinitesimal diameter and is open through the full thickness of the aquifer. 5.1.3 The nonleaky confined aquifer is...
September 15, 2008
Standard Test Method for Determining Transmissivity and Storage Coefficient of Bounded, Nonleaky, Confined Aquifers
Assumptions: The well discharges at a constant rate. Well is of infinitesimal diameter and is open through the full thickness of the aquifer. The nonleaky confined aquifer is homogeneous,...
October 10, 1996
Standard Test Method for Determining Transmissivity and Storage Coefficient of Bounded, Nonleaky, Confined Aquifers
Assumptions: 5.1.1 The well discharges at a constant rate. 5.1.2 Well is of infinitesimal diameter and is open through the full thickness of the aquifer. 5.1.3 The nonleaky confined aquifer is...
October 10, 1996
Standard Test Method for Determining Transmissivity and Storage Coefficient of Bounded, Nonleaky, Confined Aquifers
1.1 This test method covers an analytical procedure for determining the transmissivity, storage coefficient, and possible location of boundaries for a bounded confined aquifer. This test method is...
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