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The City of Carroll is committed to protecting our citizens and employees during this global pandemic. To read more on the City of Carroll's Covid-19 updates go to CityOfCarroll.com/covid19.


The Public Works Department, Wastewater Division is responsible for the operation and maintenance of the sanitary sewage collection system and wastewater treatment plant.

The collection system consists of underground pipes throughout the City ranging in size from 8 inches to 36 inches.  Also included in the collection system are lift stations.  The age of the collection system varies from less than one year to approximately 100 years.

The wastewater treatment plant provides secondary treatment to all wastewater discharged to the collection system.  Wastewater treatment plant effluent quality is regulated by a National Pollutant Discharge Elimination System permit issued by the Iowa Department of Natural Resources.

The Wastewater Division is staffed by a Wastewater Superintendent and four Plant Operators.

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