Work began in October 2019 to upgrade the Poplar Bluff Wastewater Treatment Facility. The project includes the removal and installation of a new Lemna Wastewater Lagoon System complete with new aeration equipment for three 10-acre lagoon cells. The system will also include the installation of insulated covers for all three cells. In order to push more aeration equipment, the blower building will be upgraded with new electronics and two 175 horsepower blowers. The three existing 175 horsepower blowers along with existing ductile iron piping in the blower building will be modified for additional aeration capacity. The upgraded treatment facility will include a 25,000 square foot concrete polishing reactor with additional blowers and aeration equipment along with an insulated cover.