North Polk School District Wastewater Treatment Plant, Alleman, Iowa

The North Polk School District wastewater treatment plant is located in Alleman, Iowa, within Polk County. It serves a population of 204, primarily the school district's facilities, and operates with secondary treatment. The plant has a designed capacity of 53.00 units and a discharge volume of 53.00 units, indicating full utilization. As a facility in the United States, it operates under the Clean Water Act, which requires secondary treatment for municipal wastewater to protect water quality. The plant's treated effluent is discharged into local streams that flow into the Des Moines River, a major tributary of the Mississippi River. This contributes to the overall health of the Mississippi River Basin, supporting aquatic life and downstream communities. The plant's inland location and small scale reduce its environmental footprint, but proper treatment remains essential for local water quality.

The plant discharges into local waterways that drain into the Des Moines River, which flows into the Mississippi River. The Mississippi River Basin supports diverse aquatic ecosystems and provides drinking water for millions. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting downstream habitats and recreational uses.