Horseshoe Lake WWTP - Crittenden County, Arkansas Wastewater Treatment

Horseshoe Lake WWTP is a municipal wastewater treatment facility located in Crittenden County, Arkansas, United States. The plant serves a small population of 292 residents and operates under secondary treatment standards, which is the minimum required by the US Clean Water Act for municipal wastewater. The facility is situated inland, away from coastal areas, and its operations are regulated under the National Pollutant Discharge Elimination System (NPDES) permit program administered by the Arkansas Department of Energy and Environment. The plant has a designed capacity of 264.98 million gallons per day and currently discharges 3.79 million gallons per day of treated effluent. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's capacity utilization is low relative to its design, indicating potential for future growth or seasonal variability. The treated wastewater from Horseshoe Lake WWTP is discharged into local waterways that ultimately drain into the Mississippi River basin. The Mississippi River is a major ecological and economic resource, supporting diverse aquatic life and providing drinking water for millions. The plant's discharge contributes to the overall water quality in the region, and its secondary treatment helps protect downstream ecosystems from nutrient pollution and other contaminants.

Horseshoe Lake WWTP discharges into the Mississippi River basin, which flows into the Gulf of Mexico. The Mississippi River supports a vast array of aquatic species and is a critical migratory corridor for birds and fish. Nutrient loading from wastewater can contribute to hypoxic zones in the Gulf, making effective treatment essential for downstream ecological health.