Demolition, new construction, renovation and addition to a water / sewer project in Sioux City, Iowa. Conceptual plans call for the addition of a water / sewer project; for the demolition of a water / sewer project; for the construction of a water / sewer project; and for the renovation of a water / sewer project.

This project provides for added plant capacity by expansion and/or rehabilitation of current filter processes, retrofitting them with new technology for anticipated 2030 water demand. This project allows the City to meet projected increased daily water demands in 2030 based on the Master Plan. Growth and demand will drive expansion of the Southbridge Regional Water Treatment Plant that was constructed in a manner to allow for the easy addition of 10 million Gallons Per day of membrane filtration. This CIP would cover that expansion. This project could also be used to retrofit the Zenith Water Treatment Plant with Membrane technology or expand it to include additional conventional dual media filters. Staff has also added funds in FY 2027 to rehabilitate the existing microfiltration membrane filters at the Southbridge Water Treatment Plant. Each membrane module has a life expectancy of 20 years but the replacement timeframe for the membranes could move up based on filter production and fouling of the membrane fibers. The project is included in the City 2027-2031 Capital Improvement Program (CIP). As of July 10,2026, further details have not yet been identified. *Project information has been obtained through a public capital improvement plan (CIP). A CIP is a financial schedule for short- and long-range projects which is updated regularly. Information listed in the CIP often evolves based on funding availability and the project details, including timeline and value, are subject to change. The content management team will continue to pursue additional details as they become available.