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  • ASTM D 6724/D6724M : 2016 : REDLINE

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    Standard Guide for Installation of Direct Push Groundwater Monitoring Wells

    Available format(s):  PDF

    Language(s):  English

    Published date:  01-07-2016

    Publisher:  American Society for Testing and Materials

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    Abstract - (Show below) - (Hide below)

    CONTAINED IN VOL. 04.09, 2016 Specifies various direct push groundwater monitoring wells and provides guidance on their selection and installation for obtaining representative groundwater samples and monitoring water table elevations.

    Scope - (Show below) - (Hide below)

    1.1This guide describes various direct push groundwater monitoring wells and provides guidance on their selection and installation for obtaining representative groundwater samples and monitoring water table elevations. Direct push wells are used extensively for monitoring groundwater quality in unconsolidated formations. This guide also includes discussion of some groundwater sampling devices which can be permanently emplaced as monitoring wells.

    1.2This guide does not address the single event sampling of groundwater using direct push water samplers as presented in Guide D6001. The methods in this guide are often used with other tests such as direct push soil sampling (Guide D6282) and the cone penetrometer test (Guide D6067). The guide does not address the installation of monitoring wells by rotary drilling or sonic drilling methods such as those presented in Practice D5092. Techniques for obtaining groundwater samples from monitoring wells are covered in Guides D4448, D7929, and Practice D6771. Practice D6725 addresses direct push wells using pre-packed screens.

    1.3The installation of direct push groundwater monitoring wells is limited to unconsolidated soils and sediments including clays, silts, sands, and some gravels and cobbles. Penetration may be limited, or damage may occur to equipment, in certain subsurface conditions; some of which are discussed in 5.5. Information in this guide is limited to groundwater monitoring in the saturated zone.

    1.4The values stated in either inch-pound units or SI units presented in brackets are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    1.5All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026, unless superseded by this standard.

    1.6This guide offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgement. Not all aspects of this guide 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.

    1.6.1This guide does not purport to comprehensively address all of the methods and issues associated with monitoring well installation. Users should seek input from qualified professionals for the selection of proper equipment and methods that would be the most successful for their site conditions. Other methods may be available for monitoring well installation, and qualified professionals should have flexibility to exercise judgement concerning alternatives not covered in this guide. The practice described in this guide is current at the time of issue; however, new, alternative, and innovative methods may become available prior to revisions. Therefore, users should consult with manufacturers or producers prior to specifying program requirements.

    1.7This 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 requirements prior to use.

    General Product Information - (Show below) - (Hide below)

    Committee D 18
    Development Note Supersedes ASTM D 6724. (08/2016)
    Document Type Redline
    Publisher American Society for Testing and Materials
    Status Current

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM D 6282 : 1998 Standard Guide for Direct Push Soil Sampling for Environmental Site Characterizations
    ASTM D 5434 : 2012 Standard Guide for Field Logging of Subsurface Explorations of Soil and Rock (Withdrawn 2021)
    ASTM D 6286 : 2012 : REDLINE Standard Guide for Selection of Drilling Methods for Environmental Site Characterization
    ASTM D 5521 : 2005 Standard Guide for Development of Groundwater Monitoring Wells in Granular Aquifers
    ASTM D 6771 : 2002 Standard Practice for Low-Flow Purging and Sampling for Wells and Devices Used for Ground-Water Quality Investigations (Withdrawn 2011)
    ASTM D 7242 : 2006 Standard Practice for Field Pneumatic Slug (Instantaneous Change in Head) Tests to Determine Hydraulic Properties of Aquifers with Direct Push Groundwater Samplers
    ASTM D 5978 : 1996 : EDT 1 Standard Guide for Maintenance and Rehabilitation of Ground-Water Monitoring Wells
    ASTM D 7929 : 2014 Standard Guide for Selection of Passive Techniques for Sampling Groundwater Monitoring Wells
    ASTM D 5730 : 2004 Standard Guide for Site Characterization for Environmental Purposes With Emphasis on Soil, Rock, the Vadose Zone and Groundwater (Withdrawn 2013)
    ASTM D 6026 : 2013 : REDLINE Standard Practice for Using Significant Digits in Geotechnical Data
    ASTM D 653 : 2014 : REDLINE Standard Terminology Relating to Soil, Rock, and Contained Fluids
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