Upper Gilleland Creek WWTP - Travis County, Texas Wastewater Treatment

Upper Gilleland Creek WWTP is a municipal wastewater treatment facility located in Travis County, Texas, serving a population of approximately 26,500. The plant is part of the region's wastewater infrastructure, managed under the regulatory framework of the US Clean Water Act and the Texas Commission on Environmental Quality (TCEQ). As a facility serving a medium-sized agglomeration, the plant is expected to meet secondary treatment standards under the Clean Water Act, which require removal of at least 85% of biochemical oxygen demand and suspended solids. The plant's discharge is regulated through a National Pollutant Discharge Elimination System (NPDES) permit issued by TCEQ, ensuring compliance with water quality standards for the receiving water body. The plant discharges into Upper Gilleland Creek, a tributary of the Colorado River, which flows through central Texas to the Gulf of Mexico. The Colorado River basin supports diverse aquatic life and provides water for municipal, agricultural, and industrial uses downstream. The plant's operations help protect water quality in this ecologically important watershed.

Upper Gilleland Creek WWTP discharges into Upper Gilleland Creek, which flows into the Colorado River. The Colorado River traverses central Texas and empties into the Gulf of Mexico at Matagorda Bay. The watershed supports diverse aquatic species and provides critical habitat for migratory birds. Downstream ecosystems include estuaries and coastal wetlands that are sensitive to nutrient loading and pollutant inputs.