| Main Title |
Large-Scale Natural Gradient Tracer Test in Sand and Gravel, Cape Cod, Massachusetts 3, Hydraulic Conductivity Variability and Calculated Macrodispersivities. |
| Author |
Hess, K. M. ;
Wolf, S. H. ;
Celia, M. A. ;
|
| CORP Author |
Geological Survey, Marlborough, MA. Water Resources Div. ;ENSR Consulting and Engineering, Acton, MA. ;Princeton Univ., NJ. Dept. of Civil Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Publisher |
c1992 |
| Year Published |
1992 |
| Report Number |
EPA/600/J-92/359; |
| Stock Number |
PB93-107050 |
| Additional Subjects |
Water pollution ;
Subsurface investigations ;
Environmental transport ;
Tracer techniques ;
Porous media ;
Ground water ;
Aquifer characteristics ;
Dispersion ;
Hydraulic conductivity ;
Hydrology ;
Path of pollutants ;
Stochastic processes ;
Study estimates ;
Reprints ;
Cape Cod(Massachusetts) ;
Macrodispersion
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB93-107050 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
22p |
| Abstract |
Hydraulic conductivity (K) variability in a sand and gravel aquifer on Cape Cod, Massachusetts, was measured and subsequently used in stochastic transport theories to estimate macrodispersivities. Nearly 1500 K measurements were obtained by borehole flowmeter tests and permeameter analyses of cores. The geometric mean for the flowmeter tests (0.11 cm/s) is similar to that estimated from other field tests. The mean for the permeameter tests (0.035 cm/s) is significantly lower, possibly because of compaction of the cores. The variance for the flowmeter (0.24) is also greater than that for the permeameter (0.14). Geostatistical analyses applying negative exponential models with and without nuggets reveal similar spatial correlation structures for the two data sets. Estimated correlation scales range from 2.9 to 8 m in the horizontal and from 0.18 to 0.38 m in the vertical. Estimates of asymptotic longitudinal dispersivity (0.35-0.78 m) are similar in magnitude to that observed in the natural gradient tracer test (0.96 m) previously conducted at the site. (Copyright (c) 1992 by the American Geophysical Union.) |
| Supplementary Notes |
Pub. in Water Resources Research, v28 n8 p2011-2027 Aug 92. See also PB91-216275. Prepared in cooperation with ENSR Consulting and Engineering, Acton, MA., and Princeton Univ., NJ. Dept. of Civil Engineering. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Large-Scale Natural Gradient Tracer Test in Sand and Gravel, Cape Cod, Massachusetts 3, Hydraulic Conductivity Variability and Calculated Macrodispersivities. |
| Category Codes |
68D; 48G |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/15 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
234225497 |
| Origin |
NTIS |
| Type |
CAT |
