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ASTM International - ASTM D5920-14

Standard Test Method [Analytical Procedure] for Tests of Anisotropic Unconfined Aquifers by Neuman Method

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Organization: ASTM International
Publication Date: 1 June 2014
Status: inactive
Page Count: 9
ICS Code (Geology. Meteorology. Hydrology): 07.060
significance And Use:

5.1 Assumptions: 

5.1.1 The control well discharges at a constant rate, Q.

5.1.2 The control well, observation wells, and piezometers are of infinitesimal... View More

scope:

1.1 This test method covers an analytical procedure for determining the transmissivity, storage coefficient, specific yield, and horizontal-to-vertical hydraulic conductivity ratio of an unconfined aquifer. It is used to analyze the drawdown of water levels in piezometers and partially or fully penetrating observation wells during pumping from a control well at a constant rate.

1.2 The analytical procedure given in this test method is used in conjunction with Guide D4043 and Test Method D4050.

1.3 The valid use of the Neuman method is limited to determination of transmissivities for aquifers in hydrogeologic settings with reasonable correspondence to the assumptions of the theory.

1.4 The values stated in SI units are to be regarded as 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 D5920-14
June 1, 2014
Standard Test Method [Analytical Procedure] for Tests of Anisotropic Unconfined Aquifers by Neuman Method
5.1 Assumptions:  5.1.1 The control well discharges at a constant rate, Q. 5.1.2 The control well, observation wells, and piezometers are of infinitesimal diameter. 5.1.3 The unconfined aquifer is...
January 1, 2005
Standard Test Method (Analytical Procedure) for Tests of Anisotropic Unconfined Aquifers by Neuman Method (Withdrawn 2014)
Assumptions: The control well discharges at a constant rate, Q. The control well, observation wells, and piezometers are of infinitesimal diameter. The unconfined aquifer is homogeneous and really...
January 1, 1996
Standard Test Method [Analytical Procedure] for Tests of Anisotropic Unconfined Aquifers by Neuman Method
1.1 This test method covers an analytical procedure for determining the transmissivity, storage coefficient, specific yield, and horizontal-to-vertical hydraulic conductivity ratio of an unconfined...
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