GIS Techniques for Source Water Protection and Watershed Assessment

Learn about advanced Geographic Information Systems (GIS) techniques used in a conference presentation that details how the Metropolitan North Georgia Water Planning District assessed and protected drinking water sources across 42 public intakes. Explore the methodology behind Source Water Assessment Plans (SWAPs), including watershed delineation, contamination source inventory, and susceptibility ranking calculations. Discover how modern GIS technologies and improved data quality enabled better analysis of both point and non-point source pollution threats. Follow the process of determining watershed susceptibility rankings through various factors including facility proximity, flow distance, elevation, and transport pathways. Gain insights into how these assessments help protect public drinking water systems while meeting federal Source Water Protection Program requirements.