ASTM-D5472 1999

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D5472-93(1999)e1 Standard Test Method for Determining Specific Capacity and Estimating Transmissivity at the Control Well

Published By	Publication Date	Number of Pages
ASTM	1999	4

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Categories: 13.060.10 - Water of natural resources, ASTM

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Description

1.1 This test describes a procedure for conducting a specific capacity test, computing the specific capacity of a control well, and estimating the transmissivity in the vicinity of the control well. Specific capacity is the well yield per unit drawdown at an identified time after pumping started.

1.2 This test method is used in conjunction with Test Method D4050 for conducting withdrawal and injection well tests.

1.3 The method of determining transmissivity from specific capacity is a variation of the nonequilibrium method of Theis (1) for determining transmissivity and storage coefficient of an aquifer. The Theis nonequilibrium method is given in Test Method D4106.

1.4 Limitations -The limitations of the technique for determining transmissivity are primarily related to the correspondence between the field situation and the simplifying assumptions of the Theis method.

1.5 The values stated in SI units are to be regarded as standard.

1.6 This standard may involve hazardous materials, operations, and equipment. This standard does not address safety problems 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.

Additional information

Standard Title	D5472-93(1999)e1 Standard Test Method for Determining Specific Capacity and Estimating Transmissivity at the Control Well
Published Code	ASTM
Publication Date	1999
Pages Count	4
ICS Codes	13.060.10 - Water of natural resources

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ASTM-D5472 1999

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