Do you know where your drinking water comes from? Illinois is a diverse state when it comes to water resources, and where your water comes from depends on how much is available, the quality of a water source, and its contamination risk. Explore sources of drinking water in Illinois, get an understanding of what your community water or well water goes through from source to tap, and find out how geology or natural contaminants limit the availability of drinkable water. This webinar was presented by Steve Wilson, Illinois State Water Survey groundwater hydrologist.