Historic Rainfall Causes Massive CSO, How Rain Gardens Can Help

South Bend has a combined sewer, meaning our stormwater mixes with our sewage in the same sewer system before being sent to the Wastewater Treatment Plant to be cleaned. But keep in mind, our sewer system only has a certain capacity. When we receive a lot of rain, the sewers fill up and begin to overflow. The only … More Historic Rainfall Causes Massive CSO, How Rain Gardens Can Help