Main Title |
GIS Technique for Estimating Natural Attenuation Rates and Mass Balances. |
Author |
Durant, N. D. ;
Faust, C. R. ;
Srinivasan, P. ;
Burnell, D. K. ;
Klein, K. L. ;
|
CORP Author |
GeoTrans, Inc., Sterling, VA.;National Risk Management Research Lab., Ada, OK. |
Publisher |
2001 |
Year Published |
2001 |
Report Number |
EPA/600/A-02/011; |
Stock Number |
PB2002-102931 |
Additional Subjects |
Bioremediation ;
Attenuation rates ;
Mass balances ;
Site remediation ;
Contaminants ;
Computer programs ;
Estimates ;
Geographic information systems ;
Monitored natural attenuation ;
TINMASS ;
Mass-in-place calculations ;
Natural attenuation analysis
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB2002-102931 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
14p |
Abstract |
Regulatory approval of monitored natural attenuation (MNA) as a component for site remediation often requires a demonstration that contaminant mass has decreased significantly over time. Successful approval of MNA also typically requires an estimate of past and future natural attenuation rates. Calculation of electron acceptor and/or donor mass budgets is also useful in establishing the potential effectiveness of MNA. In this paper, we present the application of the GIS program (TINMASS) for quantifying and visualizing contaminant and electron acceptor/donor mass-in-place. TINMASS uses a triangulated irregular network (TIN) to interpolate dissolved contaminant mass between monitoring points. The technique is best suited to sites where the plume has reached a steady-state, and the existing network of monitoring wells includes points located at or outside the perimeter of the plume, both horizontally and vertically. |