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Standard Practice for (Field Procedure) for Constant Drawdown Tests in Flowing Wells for Determining Hydraulic Properties of Aquifer Systems
Name übersetzen
NORM herausgegeben am 1.1.2017
Bezeichnung normen: ASTM D5786-17
Ausgabedatum normen: 1.1.2017
SKU: NS-674989
Zahl der Seiten: 3
Gewicht ca.: 9 g (0.02 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
aquifers, aquifer tests, control wells, groundwater, hydraulic conductivity, observation wells, storage coefficient, transmissivity,, ICS Number Code 93.160 (Hydraulic construction)
Significance and Use | ||||||
5.1 Constant drawdown test procedures are used with appropriate analytical procedures to determine transmissivity, hydraulic conductivity, and storage coefficient of aquifers. Note 1: The quality of the result produced by this standard is
dependent on the competence of the personnel performing it and the
suitability of the equipment and facilities used. Agencies that
meet the criteria of Practice D3740 are generally considered capable of
competent and objective testing/sampling/inspection/etc. Users of
this standard are cautioned that compliance with Practice
D3740 does not in itself
assure reliable results. Reliable results depend on many factors:
Practice D3740 provides a
means of evaluating some of those factors.
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1. Scope | ||||||
1.1 This practice covers the methods for controlling drawdown and measuring discharge rates and head to analyze the hydraulic properties of an aquifer or aquifers. 1.2 This practice is used in conjunction with analytical procedures such as those of Jacob and Lohman 1.3 The appropriate field and analytical procedures for determining hydraulic properties of aquifer systems are selected as described in Guide D4043. 1.4 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. 1.5 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process. |
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2. Referenced Documents | ||||||
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