The West County Wastewater District obtained a low-interest, 20-year loan agreement in June 2014 with Clean Water State Revolving Fund (SRF) for approximately $18 million dollars at an interest rate of 1.9 percent. The loan will fund the completion of nine projects deemed essential in a district-wide Master Plan. These projects focus on rehabilitating and replacing aging assets to reduce the risk of sanitary sewer overflows and process failures at the water pollution control plant.
A brief case study of this is available here.