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RECORD NUMBER: 57 OF 217

Main Title Estimation of Groundwater Pollution Potential by Pesticides in Mid-Atlantic Coastal Plain Watersheds.
Author Zhang, Z. ; Hantush, M. M. ;
CORP Author ManTech Environmental Research Services Corp., Ada, OK.;National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div.
Publisher 2001
Year Published 2001
Report Number EPA-68-C-98-138; EPA/600/A-01/021;
Stock Number PB2001-104133
Additional Subjects Ground water ; Pesticides ; Water pollution ; Leaching ; Watersheds ; Agriculture ; Geographical information systems ;
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P100TIJP.PDF
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NTIS  PB2001-104133 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
Abstract A simple GIS-based transport model to estimate the potential for groundwater pollution by pesticides has been developed within the ArcView GIS environment. The pesticide leaching analytical model, which is based on one-dimensional advective-dispersive-reactive (ADR) transport, has been directly integrated into the GIS with menu interface and display tools to estimate the spatial and temporal distribution of a potential pesticide's emission to groundwater. The ADR model was chosen because it requires readily available data as compared to other non-GIS models and it has the potential to handle multiple soil profile descriptions. The ADR model has been used to assist with pollution assessment such as the location and timing of pesticide spreading on watesheds, or choosing the most effective 'Best Management Practices'. By embedding ADR modeling capabilities into the GIS, one is able to evaluate the groundwater vulnerability to pesticide contamination on a large scale where variable source areas are responsible for a part or all of the groundwater contamination. To demonstrate the GIS-based contaminant transport model and its capabilities, the program was applied to Mid-Atlantic coastal plain agricultural watersheds, which are particularly vulnerable to agricultural pesticide pollution.
Supplementary Notes Sponsored by National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div.
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NTIS Title Notes Symposium paper.
Category Codes 68E; 68D
NTIS Prices PC A03/MF A01
Primary Description 600/15
Document Type NT
Cataloging Source NTIS/MT
Control Number 028201820
Origin NTIS
Type CAT