VINCENT STL Wastewater Treatment Plant, Vincent, Iowa

VINCENT STL is a municipal wastewater treatment plant located on 140th Street in Vincent, Iowa, within Webster County. The facility serves a small population of 185 residents, reflecting its role in a rural community. As a secondary treatment plant, it provides biological treatment to remove organic matter and suspended solids from wastewater before discharge. The plant operates under the US Clean Water Act, which requires secondary treatment for municipal facilities. The National Pollutant Discharge Elimination System (NPDES) permit program governs its discharge, ensuring compliance with water quality standards. The plant's designed capacity is 113.56 ML/year, matching its current discharge volume, indicating full utilization of its treatment capacity. The treated effluent is discharged into local waterways that drain into the Des Moines River basin, ultimately reaching the Mississippi River. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's secondary treatment helps protect these water bodies from nutrient pollution and pathogens.

The plant discharges into tributaries of the Des Moines River, which flows southeast to join the Mississippi River near Keokuk, Iowa. This river system supports a variety of fish species and provides habitat for migratory birds. The watershed is primarily agricultural, so the plant's nutrient removal helps mitigate downstream algal blooms and maintains water quality for recreation and wildlife.