Daisetta WWTP - Secondary Treatment Plant in Daisetta, Texas

Daisetta WWTP is a municipal wastewater treatment facility located in Daisetta, Liberty County, Texas. The plant serves a population of approximately 1,296 residents and operates within the regulatory framework of the United States Clean Water Act, which requires secondary treatment for municipal wastewater discharges. The plant provides secondary treatment, a standard level that removes biodegradable organic matter and suspended solids. With a designed capacity of 757.08 million gallons per year and an actual discharge volume of 439.11 million gallons per year, the facility operates below its capacity. As a US plant, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Texas Commission on Environmental Quality, which set effluent limits to protect water quality. The treated effluent is discharged into a local water body within the Trinity River basin, which flows into Trinity Bay and eventually the Gulf of Mexico. The plant's operations help protect downstream aquatic ecosystems and support the ecological health of the region's waterways.

The plant discharges into a tributary of the Trinity River, which flows through southeastern Texas into Trinity Bay, an estuary of the Gulf of Mexico. This watershed supports diverse aquatic life, including fish and shellfish, and provides critical habitat for migratory birds. The Trinity River basin is ecologically sensitive due to its role in maintaining water quality in the Galveston Bay system, a major estuarine environment.