Water on the WebGroundwater is the water beneath the ground, consisting largely of surface water that has seeped down. This is the water found in springs and wells so it is a very important resource. It could become contaminated by chemical pollutants so knowing more about groundwater can help make it cleaner and safer. The links below are a good place to start research. The Water Library also has a recommended reading lists for both Wisconsin residents and UW faculty, staff and students.