Blanco WWTP - Secondary Treatment Plant in Blanco, Texas

Blanco WWTP is a municipal wastewater treatment facility located in Blanco, Texas, serving a population of approximately 1,280 residents. The plant operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal discharges to surface waters. As a small-scale facility, it plays a key role in managing local wastewater in the Texas Hill Country. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. Its designed capacity is 851.72 thousand cubic meters per year, with an actual discharge volume of 719.23 thousand cubic meters, indicating operational headroom. The facility is subject to National Pollutant Discharge Elimination System (NPDES) permitting, ensuring compliance with water quality standards. The treated effluent is discharged into a local waterway that ultimately drains into the Gulf of Mexico via the Colorado River basin. The plant's operations help protect downstream aquatic ecosystems, including the ecologically sensitive Edwards Plateau region, by reducing nutrient and pollutant loads.

The plant discharges into a tributary of the Blanco River, which flows into the San Marcos River and then the Guadalupe River before reaching the Gulf of Mexico. This watershed supports diverse aquatic life, including several endemic fish species, and is an important recreational resource. The Edwards Aquifer recharge zone in the area makes groundwater protection a key concern.