Parkin WWTP - Secondary Wastewater Treatment in Cross County, Arkansas

Parkin WWTP is a municipal wastewater treatment facility located in Cross County, Arkansas, serving a population of approximately 1,105 residents. The plant provides secondary treatment, a standard level for small communities in the United States, ensuring that effluent meets basic quality standards before discharge. With a designed capacity of 1,892.70 million gallons per day and an actual discharge volume of 3.79 million gallons per day, the plant operates well below its capacity. This suggests ample room for future growth or seasonal variations. 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 plant discharges treated wastewater into local waterways that ultimately drain into the Mississippi River basin. This region supports diverse aquatic life and provides critical habitat for migratory birds. The plant's secondary treatment helps protect downstream water quality in the Mississippi River and the Gulf of Mexico.

The plant discharges into tributaries of the Mississippi River, which flows into the Gulf of Mexico. This watershed supports diverse aquatic ecosystems and is an important migratory corridor for waterfowl. The secondary treatment process reduces organic pollutants and suspended solids, helping to mitigate nutrient loading that can contribute to hypoxic zones in the Gulf.