Lytle WWTP - Secondary Treatment Plant in Atascosa County, Texas

Lytle WWTP is a municipal wastewater treatment facility located in Atascosa County, Texas, United States. The plant serves a population of approximately 2,250 residents, classifying it as a small-scale treatment facility within the state's wastewater infrastructure. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal wastewater. With a designed capacity of 1,703.43 thousand cubic meters and an actual discharge volume of 832.79 thousand cubic meters, the facility operates below its full capacity. As a U.S. plant, it operates under a National Pollutant Discharge Elimination System (NPDES) permit issued by the Texas Commission on Environmental Quality, ensuring compliance with federal water quality standards. The treated effluent from Lytle WWTP is discharged into local waterways that ultimately drain into the Gulf of Mexico via the San Antonio River Basin. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in this semi-arid region of south-central Texas.

The plant discharges into local tributaries of the San Antonio River, which flows southeast to the Gulf of Mexico. The receiving waters support diverse aquatic life and are part of a watershed that provides habitat for fish and migratory birds. Protecting water quality in this basin is important for both ecological health and downstream recreational uses.