The costs of CSO controls may be high in some areas and low in others. The severity and frequency of the CSO occurrences and their effect on river water quality will determine the types of CSO controls and their cost.

Right now, the actual cost to control CSOs in Fort Wayne is not known, but it is estimated to be at least $100 million over the next 15 - 20 years. Preventative maintenance programs, including the regular cleaning and inspection of sewer lines, and capital improvements underway to increase sewer capacity in many neighborhoods served by combined sewers will go a long way toward meeting state and federal CSO requirements.