Joiner WWTP - Advanced Wastewater Treatment in Joiner, Arkansas

Joiner WWTP is a municipal wastewater treatment plant located in Joiner, Mississippi County, Arkansas, United States. The facility serves a small population of 576 residents, reflecting its role in a rural community within the Mississippi River Delta region. The plant provides advanced treatment, which goes beyond secondary treatment to remove additional nutrients and contaminants. With a designed capacity of 378.54 units and a current discharge volume of 53.00 units, the plant operates well below its capacity, indicating room for future growth. As a US facility, it operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Arkansas Department of Energy and Environment - Division of Environmental Quality. The treated effluent is discharged into local waterways that ultimately drain into the Mississippi River, a major river system that flows into the Gulf of Mexico. The plant's advanced treatment helps protect downstream water quality in the Mississippi River basin, which supports diverse aquatic life and is an important migratory corridor for birds and fish.

The plant discharges into tributaries of the Mississippi River, which flows south through the Mississippi River Delta and into the Gulf of Mexico. The Mississippi River basin is one of the largest watersheds in North America, supporting diverse aquatic ecosystems and providing critical habitat for migratory waterfowl and fish species. Advanced treatment at this plant helps reduce nutrient loading, which is important for mitigating the hypoxic zone in the Gulf of Mexico.