Main Title |
Relationship of laboratory- and field-determined hydraulic conductivity in compacted clay layer / |
Author |
Rogowski, A. S.
|
CORP Author |
Agricultural Research Service, Boise, ID. Northwest Watershed Research Center.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. |
Publisher |
Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1990 |
Report Number |
EPA/600/2-90/025 |
Stock Number |
PB90-257775 |
OCLC Number |
22438020 |
Subjects |
Sanitary landfills--Linings ;
Clay--United States ;
Sediments (Geology)--United States ;
Soil permeability--United States
|
Additional Subjects |
Clay soils ;
Soil properties ;
Soil tests ;
Percolation ;
Density ;
Moisture content ;
Soil water ;
Experimental data ;
Porosity ;
Soil compacting ;
US EPA
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EHAM |
TD795.4.R63 1990 |
|
Region 1 Library/Boston,MA |
04/29/2016 |
EJBD |
EPA 600-2-90-025 |
|
Headquarters Library/Washington,DC |
01/22/2014 |
EKBD |
EPA/600/2-90/025 |
|
Research Triangle Park Library/RTP, NC |
02/22/1991 |
ELBD ARCHIVE |
EPA 600-2-90-025 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD |
EPA 600-2-90-025 |
|
AWBERC Library/Cincinnati,OH |
07/18/2011 |
EMBD |
EPA/600/2-90/025 |
|
NRMRL/GWERD Library/Ada,OK |
01/21/1994 |
ERAD |
EPA 600/2-90/025 |
|
Region 9 Library/San Francisco,CA |
01/24/1992 |
ESAD |
EPA 600-2-90-025 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB90-257775 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xx, 204 pages : illustrations ; 28 cm |
Abstract |
An evaluation of the hydraulic conductivity of a compacted clay liner was conducted on an extensively instrumented field-scale research facility. Infiltration and seepage were measured at 250 evenly spaced points. Spatial variability of soil, water content, and density was high even though average values were close to design specifications. Inflow, outflow, and density changes were monitored during the one-year ponding time of the study. Data indicate that both water and tracer solutes moved considerably faster than expected, indicating that only a small fraction of total pore space was active. Although data from soil core samples and nuclear surface moisture-density probes adequately described spatial distribution of water and density within the compacted clay, neither water content nor density was correlated with the spatially distributed hydraulic conductivity. Both dye and tracer studies confirmed rapid transport through a network of preferential flow pathways. |
Notes |
Includes bibliographical references (pages 171-202). |