Highfill WWTP - Advanced Wastewater Treatment in Highfill, Arkansas

Highfill WWTP is a municipal wastewater treatment facility located in Highfill, Arkansas, United States. The plant serves a small population of 583 residents, reflecting its role in a rural community within Benton County. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 378.54 megaliters and an annual discharge volume of 189.27 megaliters, the facility operates well within its capacity. As a US plant, it is subject to the Clean Water Act and operates under an NPDES permit issued by the Arkansas Department of Energy and Environment, ensuring compliance with federal water quality standards. The treated effluent is discharged into a local water body, which ultimately drains into the Illinois River watershed and then into the Arkansas River, a major tributary of the Mississippi River. This downstream connection highlights the plant's role in protecting water quality in a region known for its diverse aquatic ecosystems and recreational waterways.

The plant discharges into a local stream that flows into the Illinois River, part of the Arkansas River basin. This watershed supports diverse aquatic life and is used for recreation. The advanced treatment helps protect downstream water quality in the Mississippi River system, which ultimately reaches the Gulf of Mexico.