West Lafayette has completed a major project that started in 2016. The final phase of the Combined Sewer Overflow (CSO) project expanded the City’s wet weather treatment facility, increasing treatment capacity to 2.6 million gallons. The project also works in conjunction with more than 3 million gallons of storage provided by the CSO Relief Interceptor and River Road CSO Tunnel, allowing the City to capture, store, and treat wet weather flows more effectively. Together, these improvements have made combined sewer overflow events rare while protecting the Wabash River and supporting future growth.

This phase also brings another new addition: a LEED Silver certified administration and laboratory building, the city’s first municipal building to achieve this environmentally friendly certification. These new facilities will enhance both the efficiency and sustainability of our treatment efforts, reflecting West Lafayette’s commitment to a greener, more resilient future. This portion of the project is still under construction.