ADAIR WWTP - Adair, Iowa Wastewater Treatment Plant

ADAIR WWTP is a municipal wastewater treatment facility located in Adair, Iowa, serving a population of about 894. The plant is situated in Summit Township, Adair County, and provides secondary treatment to meet state and federal standards. As a small-scale facility, it plays a key role in managing local wastewater and protecting public health. The plant operates with a designed capacity of 302.83 units and discharges a similar volume, indicating full utilization. Under the U.S. Clean Water Act, such facilities are regulated through the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to safeguard water quality. Secondary treatment is the standard for municipal plants of this size, ensuring removal of organic matter and suspended solids. The treated effluent is discharged into a local waterway, contributing to the watershed of the Middle Raccoon River, which flows into the Raccoon River and eventually the Des Moines River. This river system supports diverse aquatic life and provides drinking water for downstream communities. The plant's operation helps maintain the ecological health of these waters.

ADAIR WWTP discharges into a tributary of the Middle Raccoon River, part of the Mississippi River basin. The receiving waters support aquatic ecosystems and are used for recreation and drinking water. The plant's secondary treatment reduces nutrient loads, helping to prevent eutrophication in downstream reservoirs and lakes.