Gracemont WWT Wastewater Treatment Plant, Gracemont Oklahoma

Gracemont WWT is a municipal wastewater treatment facility located at 262 East McCall Street in Gracemont, Caddo County, Oklahoma. The plant serves a small population of 336 residents, reflecting the rural character of the community. As a secondary treatment plant, it provides biological treatment to reduce organic pollutants and suspended solids before discharge. The plant has a designed capacity and discharge volume of 204.41 units, indicating a consistent operational scale. Under the US Clean Water Act, facilities of this size are typically regulated through National Pollutant Discharge Elimination System (NPDES) permits issued by the Oklahoma Department of Environmental Quality. These permits set effluent limits to protect water quality in receiving streams. The treated effluent from Gracemont WWT likely discharges into a local waterway within the Washita River basin, which flows southeast into the Red River and ultimately to the Gulf of Mexico. The plant plays a key role in protecting local water quality and supporting downstream aquatic ecosystems in the Southern Great Plains region.

The plant's discharge enters a tributary of the Washita River, which flows through central Oklahoma before joining the Red River along the Texas-Oklahoma border. The Red River drains into the Atchafalaya River and eventually the Gulf of Mexico. The watershed supports diverse aquatic life, including fish species adapted to the region's variable flow conditions. Protecting water quality in this basin is important for maintaining ecological health in downstream wetlands and coastal estuaries.