Kosse WWTP - Secondary Wastewater Treatment in Limestone County, Texas

Kosse WWTP is a municipal wastewater treatment facility located in Limestone County, Texas, serving a small population of around 490 residents. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for most municipal facilities to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 151.42 million gallons per year and currently discharges 75.71 million gallons annually, indicating it operates well below its capacity. As a small facility in rural Texas, it is subject to state and federal regulations under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent is discharged into a local waterway that ultimately drains into the Brazos River basin, a major river system in Texas flowing into the Gulf of Mexico. The plant's operations help protect downstream aquatic ecosystems and maintain water quality in the region.

The plant discharges into a tributary of the Brazos River, which flows southeast through Texas and empties into the Gulf of Mexico. The Brazos River basin supports diverse aquatic life and provides water for agriculture and communities. The plant's secondary treatment reduces nutrient and pollutant loads, helping to prevent eutrophication and maintain the ecological health of the river and its estuary.