Indiana American Water is your local water and wastewater company. Our lives revolve around water. It’s somehow involved in everything thing we do, everything we use. We are experts in water service and wastewater treatment. In Indiana, we put that knowledge to work for customers every day – treating water from diverse sources – from Wildcat Creek to Lake Michigan to local wellfields. Within our 37 water treatment plants across the state, the process is tailored to local water resources and community needs.