Fifth-graders in Springfield, Ore., are the youngest allowed to tour the Metropolitan Wastewater Management Commission wastewater treatment plant, but Rachael Chilton says they ask some of the most interesting questions.Chilton deserves some of the credit for the insightful students, since she founded and is the sole instructor for Clean Water University, offered for fifth-graders in Springfield schools. Chilton, public information and education specialist with the Environmental Services Division of the Public Works Department, works in the same role with the MWMC, a regional treatment operation serving the cities of Springfield and Eugene as well as Lane County.Expanding scopeWastewater treatment was
