Higginson WWTP - Advanced Wastewater Treatment in White County, Arkansas

Higginson WWTP is a wastewater treatment facility located in White County, Arkansas, United States. It serves a small community of 621 people, providing advanced treatment to protect local water quality. The plant is situated inland, away from coastal areas, and operates under the regulatory framework of the U.S. Clean Water Act. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 541.31 units and a current discharge volume of 787.37 units, the facility manages wastewater flows that exceed its nominal capacity, indicating potential operational stress. As a small-scale plant, it is subject to state-level NPDES permits that set effluent limits based on the receiving water body's assimilative capacity. The treated effluent from Higginson WWTP is discharged into a local water body within the Arkansas River basin, which ultimately drains into the Mississippi River and the Gulf of Mexico. The plant plays a crucial role in preventing nutrient pollution and protecting downstream aquatic ecosystems, including the ecologically significant Mississippi River Delta.

The plant discharges into a tributary of the Arkansas River, which flows into the Mississippi River and then the Gulf of Mexico. This watershed supports diverse aquatic life and is a critical migratory corridor for birds and fish. Nutrient loading from wastewater can contribute to hypoxia in the Gulf, making advanced treatment important for downstream water quality.