BROOKFIELD SW WWTP - Linn County, Missouri Secondary Wastewater Treatment

BROOKFIELD SW WWTP is a municipal wastewater treatment facility located in Linn County, Missouri, United States. The plant serves a population of 1,336 and operates under secondary treatment, which is the standard level required by the U.S. Clean Water Act for most municipal plants to reduce organic matter and suspended solids. The plant has a designed capacity of 1,514.16 cubic meters per day and currently discharges 946.35 cubic meters per day, indicating it operates below its full capacity. As a U.S. facility, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Missouri Department of Natural Resources, which set effluent limits to protect water quality. The treated effluent is discharged into a local water body, likely a tributary of the Mississippi River basin. The plant plays a key role in protecting downstream aquatic ecosystems by reducing pollutant loads before discharge. Its inland location minimizes direct marine impact, but proper treatment is essential for maintaining the health of local streams and rivers.

The plant discharges into a receiving water body within the Mississippi River basin, which drains into the Gulf of Mexico. This watershed supports diverse aquatic life and is part of a larger system that includes important migratory corridors for fish and birds. The secondary treatment process helps reduce nutrient loading, which is critical for preventing downstream eutrophication in the Gulf of Mexico's hypoxic zone.