Saline Creek Regional WWTF - Jefferson County, Missouri Wastewater Treatment Plant

Saline Creek Regional WWTF is a municipal wastewater treatment facility located in Jefferson County, Missouri, United States. It serves a population of around 25,322 residents, classifying it as a medium-sized agglomeration under US regulatory frameworks. As a US facility, the plant operates under the Clean Water Act, with National Pollutant Discharge Elimination System (NPDES) permits issued by the Missouri Department of Natural Resources. The plant's treated effluent is discharged into Saline Creek, a tributary of the Meramec River, which flows into the Mississippi River. This watershed supports diverse aquatic life and provides recreational and ecological value to the region.

The plant discharges into Saline Creek, which flows into the Meramec River, a major tributary of the Mississippi River. The Meramec River supports a variety of fish and wildlife, including several species of freshwater mussels. Downstream, the Mississippi River carries the water to the Gulf of Mexico, where nutrient loads can contribute to hypoxic zones. The plant's discharge quality is therefore important for both local stream health and downstream marine ecosystems.