The City of Sioux City has identified 7,300 properties that could potentially have a lead service line or a galvanized service line affected by lead. The City of Sioux City notified affected properties in mid-November 2024 to provide notice of a lead service line that may be present or could have been in the past. If property owners do not receive a letter by mail, they do not need to do anything. Anyone who receives a letter should contact the Sioux City Water Treatment Plant at 712-279-6150.

Iowa Department of Natural Resources Lead Service Line Inventory 

NEWS RELEASES & MEDIA COVERAGE

Customers may pay their utility bill online here: Sioux City Utility Billing

If you need assistance setting up your online account, contact the Customer Service Center, 712-279-6132, Option 1, or by email.

The City of Sioux City draws all of its water from groundwater sources utilizing both the deep Dakota sandstone aquifer and the shallower Missouri River alluvium formations. The City's well field consists of 7 vertical wells and 3 Ranney Collector Wells. These wells are capable of producing roughly 41 million gallons of water a day and are located in Chris Larsen Park, Riverside Park and South of Sioux Gateway Airport.

You may find all of our raw and finished water information by visiting the Water Quality Information page.

The Environmental Protection Agency (EPA) is an agency of the United States government established in 1970 to protect human health and the environment by creating and enforcing environmental laws, inspecting the environment, and providing technical support. 

Learn more at U.S. Environmental Protection Agency | US EPA