Josephine WWTP - Secondary Treatment Plant in Josephine, Texas

Josephine WWTP is a municipal wastewater treatment plant located in Josephine, Collin County, Texas. Serving a population of approximately 450, it is a small-scale facility that plays a key role in managing the community's wastewater. The plant is situated in a rural area east of Dallas, reflecting the needs of a small agglomeration. The plant provides secondary treatment, which is the standard biological treatment process required under the U.S. Clean Water Act for municipal facilities. With a designed capacity of 264.98 thousand cubic meters per year and a discharge volume of 75.71 thousand cubic meters per year, it operates well within its capacity. The plant is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Texas Commission on Environmental Quality (TCEQ). The treated effluent is discharged into local receiving waters that ultimately drain into the Trinity River basin, which flows into the Gulf of Mexico. This downstream connection underscores the plant's role in protecting water quality in the region, supporting aquatic life and downstream ecosystems.

The plant discharges into local creeks that are part of the Trinity River watershed. The Trinity River flows through North Texas and empties into Trinity Bay, an estuary of the Gulf of Mexico. This watershed supports diverse aquatic habitats and is important for regional biodiversity. The plant's secondary treatment helps reduce nutrient and organic pollutant loads, protecting downstream water quality in the sensitive estuarine environment.