North Little Rock White Oak Bayou Wastewater Treatment Plant | Arkansas, USA

North Little Rock White Oak Bayou is a municipal wastewater treatment plant located in North Little Rock, Arkansas, United States. It serves a population of about 15,433 residents in the Pulaski County area, contributing to the region's water infrastructure. As a U.S. facility, the plant operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for wastewater discharges. For a plant serving this population size, secondary treatment is typically mandated, with potential additional requirements for nutrient removal if discharging to sensitive waters. The plant's treated effluent likely discharges into the Arkansas River watershed, which flows into the Mississippi River and ultimately the Gulf of Mexico. This downstream connection highlights the importance of effective treatment to protect aquatic ecosystems and downstream water quality.

The plant's discharge enters the Arkansas River basin, a major tributary of the Mississippi River. The Arkansas River supports diverse aquatic life and is used for recreation and water supply. Downstream, the Mississippi River carries nutrients and pollutants to the Gulf of Mexico, where excess nutrients can contribute to hypoxic zones. Effective treatment at this plant helps reduce nutrient loading and protect these downstream environments.