Winterset Wastewater Treatment Facility (WWTF)

Ron Jacobsen, Plant Superintendent

Operators:  Perry Watson & Dan Luke

2255 Norwood Ave.


The WWTF is a two-stage trickling filter plant, or a secondary treatment facility. This simple means that we treat beyond our primary stage of treatment. We utilize bio-towers, which are of the same design as conventional trickling filters except that the media in the towers is much deeper. This gives us a greater capacity for treating the wastes. Our job is to remove several different sources of pollutants the state requires and prevent it from entering the Middle River. We are consistently able to remove 90 to 95% of those pollutants, which is far in excess of the 85% we are required to remove by the State of Iowa.

Another part of our responsibility is to take care of the collection system. This is the network of over 40 miles of sewer lines buried under our streets that convey the wastewater to the treatment facility.  To do this we have 6 lift stations. The lift stations help transport the wastewater to the treatment facility.

The city is moving forward on its continuing effort to prevent excess water from entering the sewer system by lining sewers and checking resident’s homes for sump pumps hooked up to their sewage drains which is illegal. In the next 12 months the city is also in the process of constructing a new lift station to handle the continued growth of the city.

Wastewater Treatment is important, not just for the City of Winterset, but also for the protection of the environment and beyond. The City has taken a proactive approach to meet new regulations and those that may come in the future. We invite you to learn more about our role in the community. Just call 515-462-3764.