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ASTM D5920-96
Standard Test Method [Analytical Procedure] for Tests of Anisotropic Unconfined Aquifers by Neuman Method
STANDARD published on 1.1.1996
The information about the standard:
Designation standards: ASTM D5920-96
Note: WITHDRAWN
Publication date standards: 1.1.1996
SKU: NS-33082
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM D5920-96 :
Keywords:
Acquifers, Control wells, Field testing,emground water/aquifers, Ground water, Hydraulic conductivity, Inertial force free response, Instantaneous head test, Limitations-slug test, Slug test, Storativity, Transmissivity and reflectivity, Unconfined aquifer, Water level, Well-acquifer system, Wells, unconfined aquifer,emhydraulic conductivity, by overdamped well response, to instantaneous change in head, slug test,,Order Form, ICS Number Code 07.060 (Geology. Meteorology. Hydrology)
Additional information
| 1. Scope | ||||||||||||||
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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. |
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