Water Pollution Control Projects

Aeration Weir Gate Replacement: There are four weir gates at the end of the aeration basins that are critical to the treatment plants’ process control. Cracks in the welds and difficult operability require the gates to be replaced. We are now in the construction phase of this project.

UV Disinfection Upgrade (ARPA): Treated wastewater passes through ultraviolet light to be disinfected before being discharged to the Connecticut River as part of the facility’s discharge permit. The WPCA has allocated $1.1 million in ARPA funding to upgrade the existing unit which has been in service for 20 years.

Clark Street, Benedict Drive, Pleasant Valley Pump Station Upgrade: This is a comprehensive upgrade of the Town's 3 largest wastewater pump stations. We are in the application process for the State Revolving Clean Water Fund loan, which is a low interest loan program designed for municipalities who are seeking to make infrastructure improvements to their wastewater facilities.

Odor Control Improvements: The South Windsor WPCF has operated a biofilter to treat municipal wastewater odors since 2013. Odors are conveyed from the Headworks Building, Control Building (contains 2 gravity belt thickeners and influent wet well), gravity thickeners, and sludge storage tanks to the biofilter for treatment. In April 2023 two Pure Air carbon filters were placed online to treat the gravity thickeners. The units exhaust to atmosphere and no longer are treated by the biofilter. Three additional Pure Air carbon filters are anticipated to be installed to treat odors from the sludge storage tanks by August 2023 and will no longer be treated by the biofilter. The focus of the design will on the west side of the facility.