Springfield STP Wastewater Treatment Plant, Springfield, Tennessee

Springfield STP is a municipal wastewater treatment facility located on Lawrence Lane in Springfield, Robertson County, Tennessee. The plant serves a population of about 15,300 people, placing it in the medium-sized agglomeration category for US facilities. As a US-based plant, Springfield STP operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting. For facilities serving populations around 15,000, secondary treatment is typically required, which involves biological processes to remove organic matter and suspended solids. The plant's design and operation are regulated by the Tennessee Department of Environment and Conservation. The treated effluent from Springfield STP is discharged into local waterways that ultimately drain into the Cumberland River basin. The Cumberland River flows through Tennessee and Kentucky before joining the Ohio River, a major tributary of the Mississippi River. The plant plays a key role in protecting water quality in the region's streams and rivers, which support diverse aquatic life and provide recreational opportunities.

Springfield STP discharges into tributaries of the Cumberland River, which flows through Middle Tennessee and into Kentucky. The Cumberland River basin supports diverse aquatic ecosystems, including fish species such as bass and catfish, and provides habitat for migratory birds. Downstream, the river joins the Ohio River, a major Mississippi River tributary. Protecting water quality in this watershed is essential for maintaining ecological health and recreational uses like fishing and boating.