ASTM-D5881:2005 Edition

$40.63

D5881-95(2005) Standard Test Method for (Analytical Procedure) Determining Transmissivity of Confined Nonleaky Aquifers by Critically Damped Well Response to Instantaneous Change in Head (Slug)

Published By	Publication Date	Number of Pages
ASTM	2005	9

Guaranteed Safe Checkout

Category: ASTM

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

ASTM D5881-95-Reapproved2005

Historical Standard: Standard Test Method for (Analytical Procedure) Determining Transmissivity of Confined Nonleaky Aquifers by Critically Damped Well Response to Instantaneous Change in Head (Slug)

ASTM D5881

Scope

1.1 This test method covers determination of transmissivity from the measurement of water-level response to a sudden change of water level in a well-aquifer system characterized as being critically damped or in the transition range from underdamped to overdamped. Underdamped response is characterized by oscillatory changes in water level; overdamped response is characterized by return of the water level to the initial static level in an approximately exponential manner. Overdamped response is covered in Guide D4043; underdamped response is covered in D5785, D4043.

1.2 The analytical procedure in this test method is used in conjunction with Guide D4043 and the field procedure in Test Method D4044 for collection of test data.

1.3 Limitations—Slug tests are considered to provide an estimate of the transmissivity of an aquifer near the well screen. The method is applicable for systems in which the damping parameter, ζ, is within the range from 0.2 through 5.0. The assumptions of the method prescribe a fully penetrating well (a well open through the full thickness of the aquifer) in a confined, nonleaky aquifer.

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.

Keywords

Aquifers; Barometric measurement; Confined aquifers; Environmental site assessment (ESA)–soil/rock; Ground water; Hydraulic conductivity/transmissivity; Observation wells; Overdamped well-aquifer system; Pumping rate; Slug tests; Storage–aquifers; Transmissivity; Underdamped well-aquifer system; Water level observation

ICS Code

ICS Number Code 07.060 (Geology. Meteorology. Hydrology)

DOI: 10.1520/D5881-95R05

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Solution
3	FIG. 1 FIG. 2
4	Significance and Use Procedure Calculation and Interpretation of Results TABLE 1
5	TABLE 2 TABLE 3
6	Report TABLE 4 TABLE 5
7	Precision and Bias Keywords TABLE 6 TABLE 7
8	TABLE 8 TABLE 9
9	REFERENCES TABLE 10

Additional information

Standard Title	D5881-95(2005) Standard Test Method for (Analytical Procedure) Determining Transmissivity of Confined Nonleaky Aquifers by Critically Damped Well Response to Instantaneous Change in Head (Slug)
Published Code	ASTM
Publication Date	2005
Pages Count	9