The Water We Rely On: A Series

Bill Hammack has been doing a lot of thinking about east-central Illinois' water supply. You may know him as WILL's "Engineer Guy," bringing complex scientific issues closer to home. All this week, Bill is taking a look at how we use water, how much we have and how we manage it for the future. The different ways we use water at home may seem obvious - but in Part 4, Bill finds some ways we may never have suspected.