2025 completion date set for new water treatment plant

DAYTON — In June 2022 the City of Dayton began construction of its new wastewater treatment plant (WWTP) to replace the existing 50-year-old facility.

City officials said the new WWTP will allow the city to expand sewer services to underserved communities and improve current services.

The city is being assisted in the WWTP design and construction oversight by J.R. Wauford and Company, Consulting Engineers, with construction performed by Reeves Young. The entire project is expected to be completed by the summer/fall of 2025 at an approximate construction cost of $40 million.

“This project consists of the complete renovation of the existing WWTP and removal of the existing Third Avenue Sewer Pump Station (SPS),” city officials said. “A new Raw Wastewater Pumping Station with Bar Screen, Headworks with Fine Screen and Grit Removal, Four Basin Sequencing Batch Reactor (SBR) using fine bubble aeration, Blower/Electrical Building, Effluent Pumping Station, Operations and Maintenance Building, Waste Sludge Building, and conversion of the existing Aeration Basins and Clarifiers to effluent flow equalization have been designed to upgrade the capacity of the WWTP to 4.0 Biological/15.0 MGD Peak.”

Permitting to allow the discharge of effluent flows above 5.5 MGD into the Tennessee River embayment using an existing force main which was abandoned in place was necessary to allow for the increase in capacity. A new 24-inch gravity sewer line is being constructed in order to eliminate the existing Third Avenue SPS thereby allowing gravity flow to the new pumping station at the WWTP.