Iowa City Wastewater Treatment Plant Expansion

As part of a nearly 40-year effort to move all wastewater operations out of the city’s core, the city of Iowa City, Iowa, embarked on a $50.2 million project to expand its South Wastewater Treatment Plant. The expansion was designed to improve the existing plant’s safety, sustainability and energy efficiency, and enable economic growth and development within the city.

The expansion allowed for closure of an aging downtown plant, eliminating the risk of sewage release during flooding. It also doubled the South Plant’s treatment capacity to 24 million gal per day, allowing for significant city growth and meeting strict ammonia limits.

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