The University of Michigan Urban Collaboratory worked with the Great Lakes Water Authority (GLWA) in 2018 to better handle combined sewer overflows in real-time. More from the project:

… they found that Combined Sewer Overflows have been occurring when additional sewer capacity is available. Rather than increasing the amount of storage with costly infrastructure improvements, the research team was able to demonstrate their ability to use a real-time control approach to significantly improve the existing GLWA wastewater and CSO management system by reducing both the occurrence of CSOs and peak flows going to the treatment facility.