Combined sewer system : human-related issue

Abstract

"In a Combined Sewer System, the water that comes from industrial wastewater, home sewage, and rainwater runoff funnels into a single pipe going to a treatment plant. When there is too much runoff, such as after a heavy rainstorm, the single pipe cannot handle the amount of runoff plus wastewater and the water must be sent somewhere else. For cities along the Missouri River, the Missouri River is where that overflowing waste ends up."--Page 1.