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ASTM D 6106 Document Information:
Title
Standard Guide for Establishing the Nomenclature of Ground-Water Aquifers
ASTM International
Publication Date:
Aug 10, 1997
Scope:
This guide covers a series of options but does not specify a course of
action. It should not be
used as the sole criterion or basis of comparison and does not replace
or relieve professional
judgement.
This guide contains instructions and suggestions for authors of
ground-water (hydrogeologic)
reports in assigning appropriately derived and formatted aquifer
nomenclature. Discussed are the
water-bearing units that may require name identification, which are,
ranked from largest to
smallest, aquifer system, aquifer, and zone. Guidance is given on
choosing the source of aquifer
names, those are from lithologic terms, rock-stratigraphic units, and
geographic names.
Included are examples of comparison charts and tables that can be used
to define the hydrogeologic
framework. Illustrations of eleven different hypothetical aquifer
settings are presented to
demonstrate the naming process.
Categories of items not suggested as a source of aquifer names are
reviewed because, although they
should be avoided, they occur in published documents. These categories
are the following:
time-stratigraphic names, relative position, alphanumeric
designations, depositional environment,
depth of occurrence, acronyms, and hydrologic conditions.
Confining units are discussed with the suggestion that these units
should not be named unless doing
so clearly promotes an understanding of a particular aquifer system.
Suggested sources of names for
confining units correspond to those for aquifer names, which are
lithologic terms,
rock-stratigraphic units, and geographic names.
It is suggested that in reports that involve hydrogeology, the author
should consider first not
naming aquifers (see 6.2).
Format and expression styles are assessed along with the general
cautions related to name selection
of aquifers and confining units.
This guide is a modification of a previously published report
(1).(Footnote 2)
This guide offers an organized collection of information or a series
of options and does not
recommend a specific course of action. This guide 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 guide 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 guide 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.
Footnote 2 - The boldface numbers in parentheses refer to the list of
references at the end of this
standard.
Keywords:
- aquifer nomenclature
- aquifer systems
- confining units
- geological names
- ground-water
- hydrogeology
- rock-stratigraphic units
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