Farmington WWTP West - Municipal Wastewater Treatment in Farmington, Missouri

Farmington WWTP West is a municipal wastewater treatment facility located on New Perrine Road in Farmington, Saint Francois County, Missouri. The plant serves a population of about 9,731 residents, placing it in the small-to-medium agglomeration category for US inland communities. As a US facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, typically administered by the Missouri Department of Natural Resources. The plant discharges treated effluent into local waterways within the Mississippi River basin. The receiving water body ultimately drains into the Mississippi River and then to the Gulf of Mexico, contributing to the regional water quality management in southeastern Missouri.

The plant's discharge enters local streams within the Upper Mississippi River basin, eventually flowing into the Mississippi River and the Gulf of Mexico. This watershed supports diverse aquatic life and is an important migratory corridor for fish and birds. The region's karst topography can make groundwater particularly sensitive to contamination, emphasizing the need for effective treatment.