If Caryl Ann Giles and her team act like they’ve grown up with the Spring Hill Water System, it’s because they have.“I came here before the roof was on the building,” says Giles, who arrived at Spring Hill 11 years ago and is now water superintendent. It was the city’s water treatment plant; Spring Hill bought water from neighboring communities for many years, and before the 1970s operated a simple gravity-feed system with a groundwater well, chlorination and storage tank.“There were less than 1,000 people here in 1980,” Giles says. Spring Hill’s closeness to Nashville, along with construction of the
