Overview
Madison WWTP is a secondary treatment plant in St. Francis County, Arkansas, serving a population of 769. It discharges 810.08 thousand cubic meters of treated wastewater annually, with a designed capacity of 567.81 thousand cubic meters.
Madison WWTP is a municipal wastewater treatment facility located in St. Francis County, Arkansas, United States. The plant serves a small community of 769 residents, providing essential sanitation services for the local area. The facility operates with secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater plants. Under the National Pollutant Discharge Elimination System (NPDES), plants of this scale must meet effluent limits to protect water quality. The plant's designed capacity is 567.81 thousand cubic meters, and it treats an annual discharge volume of 810.08 thousand cubic meters. The treated effluent is discharged into a local water body that ultimately drains into the Mississippi River basin. This region is part of the larger Lower Mississippi River watershed, which supports diverse aquatic life and provides drinking water for millions downstream. Proper treatment at plants like Madison WWTP is critical to maintaining the ecological health of this major river system.
Environmental context
The plant discharges into a receiving water body within the Mississippi River basin, which flows southward to the Gulf of Mexico. The Lower Mississippi River supports a rich ecosystem, including fish, migratory birds, and aquatic plants. Effective secondary treatment helps reduce nutrient loads and pollutants that could contribute to hypoxia in the Gulf, protecting downstream water quality and biodiversity.
Frequently asked questions
Madison WWTP is located in St. Francis County, Arkansas, United States, near the community of Madison.
Madison WWTP serves a population of 769 residents in the local area.
The plant discharges treated effluent into a local water body that is part of the Mississippi River basin, ultimately flowing to the Gulf of Mexico.
Madison WWTP operates under the U.S. Clean Water Act, with discharge permits issued through the National Pollutant Discharge Elimination System (NPDES) by the Arkansas Department of Energy and Environment.
For small communities in the U.S., secondary treatment is the standard requirement under the Clean Water Act. This involves biological treatment to remove organic matter and suspended solids, ensuring compliance with NPDES permit limits.
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