| Main Title |
Reliability-Based Uncertainty Analysis of Groundwater Contaminant Transport an Remediation. |
| Author |
Hamed, M. M. ;
Bedient, P. B. ;
|
| CORP Author |
Rice Univ., Houston, TX.;National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div. |
| Publisher |
Jun 1999 |
| Year Published |
1999 |
| Report Number |
EPA-CR-821906; EPA/600/R-99/028; |
| Stock Number |
PB2007-107081 |
| Additional Subjects |
Ground water ;
Environmental transport ;
Water pollution ;
Remediation ;
Contaminate plumes ;
Cleanup ;
Downgradient wells ;
Estimates ;
Reliability-based uncertainty analysis ;
Analytical groundwater models ;
Probabilistic modeling tools
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB2007-107081 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
82p |
| Abstract |
Failure to rigorously accommodate physical parameter uncertainty in groundwater transport models casts serious doubts on our ability to accurately delineate the contaminant plume at a given site. This failure could also considerably reduce the possibility of success of the remediation scheme intended to clean up a plume within the specified time. In this research, the probability that a contaminant leaking from a waste source will exceed some predetermined target level at a down-gradient well is estimated, along with the sensitivity of this probably to the basic uncertainty in input parameters. The relevant parameters are assumed random with prescribed probability distributions. We present a probabilistic modeling tool based on first- and second-order reliability methods (FORM and SORM) to account for parameter uncertainty in groundwater contaminant transport and remediation. The methodology is applied to analytical groundwater models to provide a simple screening tool for the assessment of contamination and remediation. In addition, numerical-based reliability models are developed to account for aquifer spatial heterogeneity and correlation structure in more complex systems. |
| Supplementary Notes |
Sponsored by National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div. |
| Availability Notes |
Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| Category Codes |
68D; 48G; 50B |
| NTIS Prices |
PC A06 |
| Primary Description |
600/15 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
019100740 |
| Origin |
NTIS |
| Type |
CAT |
