Michael J. Dixon | Apr. 30, 2013 | Bloomberg News
It used to be that when a heavy storm hit South Bend, Indiana, waste water spilled into the St. Joseph River and backed up in basements. That's because, like some 800 other cities in the United States with combined storm and sanitary sewers, South Bend's pipes and treatment plants were easily overwhelmed.
The city was faced with the prospect of a major infrastructure overhaul that could have cost $120 million. Instead, the city teamed up with the University of Notre Dame, local technology company Emnet, and IBM to seek a low-cost but effective solution to the sewage problem.