Billings WWT Wastewater Treatment Plant, Noble County, Oklahoma

Billings WWT is a municipal wastewater treatment facility located in Noble County, Oklahoma, United States. The plant serves a small community with a population of approximately 436, reflecting its role in rural wastewater management. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 272.55 megaliters and reports an annual discharge volume of 189.27 megaliters. Under the U.S. Clean Water Act, facilities of this scale are typically regulated through the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The plant's secondary treatment level meets the minimum federal standard for municipal wastewater treatment. The treated effluent is discharged into local waterways within the Arkansas River basin, which ultimately drains into the Mississippi River and the Gulf of Mexico. The plant's operations contribute to protecting downstream aquatic ecosystems and maintaining water quality in the region's surface waters.

Billings WWT discharges into tributaries of the Arkansas River, which flows through Oklahoma and Arkansas before joining the Mississippi River and reaching the Gulf of Mexico. The local watershed supports diverse aquatic life and is used for recreation and agriculture. The plant's secondary treatment helps reduce nutrient and pollutant loads, mitigating impacts on downstream water bodies and the sensitive coastal zone of the Gulf.