| Main Title |
3DFEMWATER/3DLEWASTE : numerical codes for delineating wellhead protection areas in agricultural regions based on the assimilative capacity criterion / |
| Author |
Yeh, G. T. ;
Sharp-Hansen, S. ;
Lester, B. ;
Strobl, R. ;
Scarbrough, J.
|
| Other Authors |
|
| CORP Author |
AQUA TERRA Consultants, Mountain View, CA. ;Pennsylvania State Univ., University Park. ;GeoTrans, Inc., Sterling, VA. ;AScI Corp., Athens, GA.;Environmental Research Lab., Athens, GA. |
| Publisher |
Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1992 |
| Report Number |
EPA 600-R-92-223; EPA-68-CO-0019 |
| Stock Number |
PB93-217669 |
| OCLC Number |
29505747 |
| Subjects |
Wellheads--Protection--Mathematical models ;
Groundwater--Pollution--Mathematical models ;
Water, Underground--Pollution--Mathematical models
|
| Additional Subjects |
Wellheads ;
Three dimensional flow ;
Water pollution control ;
Water wells ;
Path of pollutants ;
Ground water ;
Agricultural chemicals ;
Agricultural wastes ;
Water supply ;
Computerized simulation ;
Air water interfaces ;
Sediment water interfaces ;
Saturated flow ;
Unsaturated flow ;
3DFEMWATER computer model ;
3DLEWASTE computer model
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA/600-R-92-223 |
|
Headquarters Library/Washington,DC |
04/28/1995 |
| ELBD |
EPA 600-R-92-223 |
|
AWBERC Library/Cincinnati,OH |
04/10/1998 |
| EMBD |
EPA/600/R-92/223 |
|
NRMRL/GWERD Library/Ada,OK |
02/03/1995 |
| NTIS |
PB93-217669 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xi, 240 pages : illustrations ; 28 cm |
| Abstract |
Two related numerical codes, 3DFEMWATER and 3DLEWASTE, are presented that can be used to delineate wellhead protection areas in agricultural regions using the assimilative capacity criterion. 3DFEMWATER (Three-dimensional Finite Element Model of Water Flow Through Saturated-Unsaturated Media) simulates subsurface flows, whereas 3DLEWASTE (Hybrid Three-dimensional Lagrangian-Eulerian Finite Element Model of Waste Transport Through Saturated-Unsatured Media) models contaminant transport. Both codes treat heterogeneous and anisotropic media consisting of as many geologic formations as desired, consider both distributed and point sources/sinks that are spatially and temporally dependent, and accept for types of boundary conditions--i.e., Dirichlet (fixed-head or concentration), specified-flux, Neumann (specified-pressure-head gradient or specified-dispersive flux), and variable. The variable boundary condition in 3DFEMWATER simulates evaporation/infiltration/seepage at the soil-air interface and, in 3DLEWASTE, simulates mass infiltration into or advection out of the system. 3DLEWASTE contains options to model adsorption using a linear, Fruendlich, or Langmuir isothern, plus dispersion, and first-order decay. |
| Notes |
"EPA/600/R-92/223" "November 1992" PB93-217669 Includes bibliographical references (p. 150-152). |
| Place Published |
Athens, Ga. : |
| Supplementary Notes |
Prepared in cooperation with Pennsylvania State Univ., University Park, GeoTrans, Inc., Sterling, VA., and AScI Corp., Athens, GA. Sponsored by Environmental Research Lab., Athens, GA. |
| Corporate Au Added Ent |
Environmental Research Laboratory (Athens, Ga.) |
| Alternate Title |
Numerical codes for delineating wellhead protection areas in agricultural regions based on the assimilative capacity criterion. |
| PUB Date Free Form |
{1992} |
| NTIS Prices |
PC A12/MF A03 |
| BIB Level |
m |
| Medium |
microform |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
19980408124344 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01232cam 2200289Ia 45020 |
