Grand Junction WWTP - Secondary Treatment Plant in Grand Junction, Iowa

Grand Junction WWTP is a municipal wastewater treatment plant located in Grand Junction, Iowa, serving a small population of 808 residents. The facility provides secondary treatment, a standard level for communities of this size in the United States. The plant has a designed capacity of 575.38 volume units and discharges a similar volume of treated wastewater. As a U.S. facility, it operates under the Clean Water Act, with NPDES permits issued by the Iowa Department of Natural Resources, ensuring compliance with effluent limits. The treated effluent is discharged into a local waterway that drains into the Des Moines River basin, ultimately reaching the Mississippi River. This contributes to the ecological health of downstream aquatic habitats, supporting diverse fish and wildlife populations.

The plant discharges into a tributary of the Des Moines River, which flows into the Mississippi River. This watershed supports a variety of aquatic life and is important for regional biodiversity. The secondary treatment process reduces organic pollutants and suspended solids, protecting downstream water quality in this agriculturally influenced region.