Pocahontas WWTF - Secondary Treatment Plant in Pocahontas, Missouri

Pocahontas Wastewater Treatment Facility (WWTF) is a municipal plant located in Pocahontas, Cape Girardeau County, Missouri. Serving a small population of 114, the plant provides secondary treatment to domestic wastewater from the community. As a secondary treatment facility, Pocahontas WWTF meets the minimum standard required under the US Clean Water Act for municipal wastewater treatment. The plant has a designed capacity of 87.06 units and processes an average daily flow of 49.21 units, indicating it operates below its capacity. The plant is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent from Pocahontas WWTF discharges into local streams that are part of the Mississippi River basin. The Mississippi River system supports diverse aquatic life and provides drinking water for millions downstream. By maintaining secondary treatment, the plant helps reduce organic pollutants and suspended solids before discharge, contributing to the ecological health of the watershed.

Pocahontas WWTF discharges into tributaries of the Mississippi River, which flows into the Gulf of Mexico. The Mississippi River basin is a major ecological corridor supporting fish, migratory birds, and aquatic plants. Downstream, the Gulf of Mexico experiences seasonal hypoxia due to nutrient loading, making nutrient reduction a key environmental concern for plants in this basin.