Clyde WWTP - Secondary Treatment Plant in Callahan County, Texas

Clyde WWTP is a municipal wastewater treatment facility located in Callahan County, Texas, United States. The plant serves a population of around 3,020 residents, reflecting its role in a small rural community. It is situated inland, away from coastal areas, and operates under the regulatory framework of the US Clean Water Act. The plant provides secondary treatment, which is the standard level required by the US Environmental Protection Agency (EPA) for municipal wastewater facilities. With a designed capacity of 1,211.33 megaliters and an actual discharge volume of 643.52 megaliters, the plant operates below its full capacity. Such facilities typically hold National Pollutant Discharge Elimination System (NPDES) permits issued by the Texas Commission on Environmental Quality (TCEQ), ensuring compliance with effluent limits. The treated effluent is discharged into local waterways that drain into the Brazos River basin, ultimately reaching the Gulf of Mexico. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in this semi-arid region of Texas.

The plant discharges into tributaries of the Brazos River, which flows southeast through Texas to the Gulf of Mexico. The Brazos River supports diverse aquatic life and is an important water resource for agriculture and communities. The plant's secondary treatment helps reduce nutrient and organic loads, mitigating eutrophication risks in downstream reservoirs and coastal waters.