Record Display for the EPA National Library Catalog

RECORD NUMBER: 25 OF 32

OLS Field Name OLS Field Data
Main Title Measurement of hydraulic conductivity distributions : a manual of practice /
Author Molz, Fred J. ; Gueven, O. ; Melville, J. G.
Other Authors
Author Title of a Work
G uven, Oktay.
Melville, Joel G.
Hess, Alfred E.
Paillet, Frederick L.
Leach, Lowell E.
CORP Author Auburn Univ., AL. Dept. of Civil Engineering. ;Geological Survey, Denver, CO.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1990
Report Number EPA/600/8-90/046; EPA-R-813647
Stock Number PB91-211938
OCLC Number 45745096
Subjects Groundwater--Measurement--Handbooks, manuals, etc.
Additional Subjects Water pollution ; Hydraulic conductivity ; Aquifers ; Water flow ; Hydrology ; Vertical migration ; Groundwater movement ; Base flow ; Fracture permeability ; Flowmeters ; Case studies ; Waste disposal ; Rock properties ; Measuring instruments ; Design criteria ; Performance evaluation ; Three-dimensional calculations ; Environmental transport ; Impeller meters
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20008F73.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EMBD  PB91-211938 GWERD Library/Ada,OK 04/30/2004
NTIS  PB91-211938 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 73 pages : illustrations ; 28 cm
Abstract
The ability of hydrologists to perform field measurements of aquifer hydraulic properties must be enhanced in order to significantly improve the capacity to solve ground water contamination problems at Superfund and other sites. The primary purpose of the manual is to provide new methodologies for measuring K(z), the distribution of horizontal hydraulic conductivity in the vertical direction in the vicinity of a test well. Measurements in nearby wells can then be used to estimate three-dimensional distributions. As dispersion-dominated models (particularly two-dimensional, vertically-averaged models) approach their limitations, it is becoming increasingly important to develop two-dimensional vertical profile or fully three-dimensional advection-dominated transport models in order to significantly increase the ability to understand and predict contaminant transport, reaction, and degradation in the field. Such models require the measurement of hydraulic conductivity distributions, K(z), rather than vertically averaged values in the form of transmissivities. Three devices for measuring K(z) distributions (the impeller flowmeter, the heat-pulse flowmeter, and a multi-level slug test apparatus) are described in detail, along with application and data reduction procedures. Results of the various methods are compared with each other and with the results of tracer studies. The flowmeter approach emerged as the best candidate for routine K(z) measurements. Impeller meters are now available commercially, and the more sensitive flowmeters (heat pulse and electromagnetic) are expected to be available in the near future.
Notes
"Lowell E. Leach, project officer." "Funded wholly or in part by the United States Environmental Protection Agency under assistance agreement number CR-813647 to the Board of Trustees of Auburn University"--Page ii. "March 1990"--Cover. Includes bibliographical references (pages 57-60). "EPA/600/8-90/046." Microfiche.