A Point Count System model, DRASTIC, was used to assess the groundwater pollution potential from nitrogen fertilizers in Ludhiana district of Punjab, India. Thematic maps of the seven parameters of the model i.e. depth to water table, recharge, aquifer media, soil, topography, impact of vadose zone and hydraulic conductivity were prepared in a geographic information system (GIS) environment to obtain nitrogen pollution potential indexes based on the consumption of nitrogenous fertilizers. The model was calibrated and validatedfor the region.Statistical analysis showed good agreement between...