Fundamental and Applied Agriculture
for quality & timely publication

[FAA allows readers to read, download, copy, distribute, print, search, or link to the full texts of its articles and to use them for any other lawful purpose]
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Geospatial data assimilation and mapping groundwater vulnerability in high plains aquifer using DRASTIC Model

Sumon Datta, Ali Ajaz

doi: 10.5455/faa.53506                         pp: 933-942


High Plains Aquifer is one of the most important aquifers in the United States, accounting for one-fourth of total annual freshwater withdrawal, and one-fifth of crop production of some major crops. But the area above this aquifer has not been extensively researched for determining the risk of groundwater pollution. Therefore, this study was undertaken to determine the groundwater pollution potential using the DRASTIC model in a Geographic Information System (GIS) environment. Despite the limited data availability, DRASTIC model proved effective in delineating areas of High Plains Aquifer susceptible to groundwater contamination. The results from the model indicated that large portions of southwestern Texas, central Kansas, eastern Colorado, easternWyoming, western and north-western Nebraska were highly vulnerable to groundwater pollution whereas Oklahoma had the lowest vulnerability.

Keywords: Irrigation, high plains aquifer, ArcGIS, DRASTIC model, Ogallala aquifer, groundwater vulnerability