Overview
WINNFIELD STP serves approximately 6,138 residents in Winnfield, Louisiana. The plant operates under the U.S. Clean Water Act, with discharge regulated by the Louisiana Department of Environmental Quality.
WINNFIELD STP is a municipal wastewater treatment facility located in Winnfield, Louisiana, serving a population of about 6,138. The plant is situated in the north-central part of the state, within the Winn Parish area. As a small to medium-sized facility, it plays a key role in managing local wastewater from residential and commercial sources. Under the U.S. Clean Water Act, wastewater treatment plants of this scale are typically required to meet secondary treatment standards through the National Pollutant Discharge Elimination System (NPDES) permitting program. The Louisiana Department of Environmental Quality oversees permitting and compliance for facilities in the state. Secondary treatment is the baseline expectation for municipal plants serving communities of this size. The plant discharges treated effluent into a local waterway that ultimately drains into the Ouachita River basin, which flows south to the Mississippi River and into the Gulf of Mexico. This downstream connection highlights the importance of effective treatment to protect water quality in the broader watershed and coastal ecosystems.
Environmental context
WINNFIELD STP discharges into a tributary of the Ouachita River, which flows through Louisiana and joins the Mississippi River before reaching the Gulf of Mexico. The receiving waters support diverse aquatic life and are used for recreation and fishing. Proper treatment is essential to prevent nutrient loading and maintain ecological health in this riverine system.
Frequently asked questions
WINNFIELD STP is located in Winnfield, Louisiana, United States, near Winnfield Primary School on South Saint John Street.
WINNFIELD STP serves approximately 6,138 residents in the Winnfield area.
WINNFIELD STP discharges treated effluent into a local waterway that flows into the Ouachita River basin, ultimately reaching the Mississippi River and the Gulf of Mexico.
WINNFIELD STP operates under the U.S. Clean Water Act, with NPDES permits issued by the Louisiana Department of Environmental Quality. These permits set limits on pollutant discharges to protect water quality.
For plants serving around 6,000 people, secondary treatment is standard under the Clean Water Act. This typically involves biological processes to remove organic matter and solids before discharge.
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