Brushy Creek Regional WWTP - Round Rock, Texas Wastewater Treatment

Brushy Creek Regional WWTP is a major wastewater treatment facility serving Round Rock, Texas, located in Williamson County. With a population served of 245,870, it is classified as a large agglomeration under US regulatory frameworks. The plant is situated inland, approximately 30 km from the coast, and discharges into the local watershed. As a US facility, the plant operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges. For plants of this scale, secondary treatment is the minimum standard, with additional nutrient removal often required to protect downstream water quality. The regulatory framework ensures compliance with effluent limits. The plant's treated effluent likely enters Brushy Creek, a tributary of the San Gabriel River, which flows into the Brazos River and eventually the Gulf of Mexico. This watershed supports diverse aquatic life and provides water for municipal and agricultural use downstream. The plant's operations are critical for maintaining water quality in this rapidly growing region.

The plant discharges into the Brushy Creek watershed, part of the Brazos River basin, which drains into the Gulf of Mexico. This region supports diverse aquatic ecosystems, including fish and migratory birds. The downstream environment is sensitive to nutrient loading, and the plant's treatment level helps protect water quality in the Brazos River and its coastal estuary.