 |
| Purchase Information |
| Use this form to request purchase information on ASTM online subscriptions. |
|
|
Document ASTM D 5299 is offered by IHS as part of an online subscription. This subscription contains many documents on the same topic.
You may also purchase this document alone from the IHS Standards Store.
ASTM D 5299 Document Information:
Title
Standard Guide for Decommissioning of Ground Water Wells, Vadose Zone Monitoring Devices, Boreholes, and Other Devices for Environmental Activities
ASTM International
Publication Date:
Dec 10, 1999
Scope:
This guide covers procedures that are specifically related to
permanent decommissioning (closure)
of the following as applied to environmental activities. It is
intended for use where solid or
hazardous materials or wastes are found, or where conditions occur
requiring the need for
decommissioning. The following devices are considered in this guide:
A borehole used for geoenvironmental purposes (see Note 1),
Monitoring wells,
Observation wells,
Injection wells (see Note 2),
Piezometers,
Wells used for the extraction of contaminated ground water, the
removal of floating or submerged
materials other than water such as gasoline or tetrachloroethylene, or
other devices used for the
extraction of soil gas,
A borehole used to construct a monitoring well, and
Any other vadose zone monitoring device.
Temporary decommissioning of the above is not covered in this guide.
NOTE 1 - This guide may be used to decommission boreholes where no
contamination is observed at a
site (see Practice D 420 for details); however, the primary use of the
guide is to decommission
boreholes and wells where solid or hazardous waste have been
identified. Methods identified in this
guide can also be used in other situations such as the decommissioning
of water supply wells and
boreholes where water contaminated with nonhazardous pollutants (such
as nitrates or sulfates) are
present. This guide should be consulted in the event that a routine
geotechnical investigation
indicates the presence of contamination at a site.
NOTE 2 - The term "well" is used in this guide to denote monitoring
wells, piezometers, or other
devices constructed in a manner similar to a well. Some of the devices
listed such as injection and
extraction wells can be decommissioned using this guide for
information, but are not specifically
covered in the text.
NOTE 3 - Details on the decommissioning of multiple-screened wells are
not provided in this guide
due to the many methods used to construct these types of wells and the
numerous types of
commercially available multiple-screened well systems. However, in
some instances, the methods
presented in this guide may be used with few changes. An example of
how this guide may be used is
the complete removal of the multiple-screened wells by overdrilling.
Most monitoring wells and piezometers are intended primarily for water
quality sampling, water
level observation, or soil gas sampling, or combination thereof, to
determine quality. Many wells
are relatively small in diameter and are used to monitor for hazardous
chemicals in ground water.
Decommissioning of monitoring wells is necessary to:
Eliminate the possibility that the well is used for purposes other
than intended,
Prevent migration of contaminants into an aquifer or between aquifers,
Prevent migration of contaminants in the vadose zone,
Reduce the potential for vertical or horizontal migration of fluids in
the well or adjacent to the
well, and
Remove the well from active use when the well is no longer capable of
rehabilitation, or has failed
structurally; no longer required for monitoring; no longer capable of
providing representative
samples or is providing unreliable samples; or required to be
decommissioned; or to meet regulatory
requirements.
NOTE 4 - The determination of whether a well is providing a
representative water quality sample is
not defined in this guide. Examples of when a representative water
quality sample may not be
collected include the biological or chemical clogging of well screens,
a drop in water level to
below the base of the well screen, or complete silting of a tail pipe.
These conditions may
indicate that a well is not functioning properly.
This guide is intended to provide information for effective permanent
closure of wells so that the
physical structure of the well does not provide a means of hydraulic
communication between aquifers
or react chemically in a detrimental way with the environment.
The intent of this guide is to provide procedures that when followed
result in a reasonable level
of confidence in the integrity of the decommissioning activity.
However, it may not be possible to
verify the integrity of the decommissioning procedure. At this time,
methods are not available to
substantially determine the integrity of the decommissioning activity.
The values stated in inch-pound units are to be regarded as the
standard. The SI units given in
parentheses are for information only.
This standard does not purport to address all of the safety problems,
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.
This 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 judgment. 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.
NOTE 5 - If state and local regulations are in effect where the
decommissioning is to occur, the
regulations take precedence over this guide.
Keywords:
- abandonment
- decommissioning
- ground water monitoring wells
- hazardous waste
- plugging
About IHS
IHS (NYSE: IHS) is a leading global provider of critical technical information, decision-support tools and related services in a number of industries including aerospace and defense, automotive, construction, electronics, and energy. IHS serves customers ranging from large governments and multinational corporations to smaller companies and technical professionals in more than 100 countries. IHS been in business for more than 45 years and employ more than 2,300 people around the world.
