Main Title |
Simplified Analysis of Two-Well Tracer Tests in Stratified Aquifers. |
Author |
Gueven, O. ;
Falta, R. W. ;
Molz, F. J. ;
Melville, J. G. ;
|
CORP Author |
Auburn Univ., AL. Dept. of Civil Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
Year Published |
1986 |
Report Number |
EPA/600/J-86/029; |
Stock Number |
PB86-190196 |
Additional Subjects |
Aquifers ;
Stratification ;
Water wells ;
Tracer studies ;
Mathematical models ;
Thickness ;
Hydrodynamics ;
Dispersing ;
Field tests ;
Hydraulic conductivity ;
Reprints ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB86-190196 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
11p |
Abstract |
The paper illustrates several interesting effects of aquifer stratification on the results of two-well tracer tests by means of a simplified computer model. In the model, it is assumed that the aquifer is horizontal, confined, of constant thickness and porosity, and perfectly stratified in the vicinity of the test wells. The non-uniform advection pattern is taken into account in detail by the model, but the local hydrodynamic dispersion is completely neglected. The simplified model has been verified in part by comparisons with available analytical solutions valid for homogeneous aquifers and in part by comparisons with the results of a two-well field experiment of Pickens and Grisak (1981a) which was performed in a locally stratified aquifer. The applications of the model to several field situations with assumed values of the relevant parameters show that the concentration versus time breakthrough curve measured at the withdrawal well during a standard two-well test would be very sensitive to variations of the hydraulic conductivity in the vertical. |
Supplementary Notes |
Pub. in Ground Water, v24 n1 p63-71 Jan/Feb 86. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Simplified Analysis of Two-Well Tracer Tests in Stratified Aquifers. |
PUB Date Free Form |
Feb 86 |
Category Codes |
8H; 48G; 48B |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/15 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
618818314 |
Origin |
NTIS |
Type |
CAT |