Sioux Rapids Water Treatment Plant

Sioux Rapids, IA | Public Works


ISG designed the disinfection system for the City of Sioux Rapids’ wastewater treatment plant.


Needing to add disinfection to its wastewater facility, the City of Sioux Rapids required a unique system to enhance its water quality.


Sioux Rapids received a new discharge permit that required adding disinfection to the wastewater treatment facility. Ultraviolet disinfection was initially recommended for this aerated lagoon facility, but subsequent testing showed that the water quality was not suitable for ultraviolet light. Ultimately, a system using chlorination and dechlorination was designed and is used at the facility. Liquid chemicals are used for safety and for ease of operation. A static aerator is also included to boost effluent dissolved oxygen after the addition of dechlorination chemicals.

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