Williamsport WWTP - Wastewater Treatment Plant in Williamsport, Indiana

Williamsport WWTP is a municipal wastewater treatment facility located on South River Road in Williamsport, Indiana, within Warren County. The plant serves a population of about 1,932 residents, typical of a small agglomeration in the rural Midwest. As a US-based facility, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Indiana Department of Environmental Management. For plants of this scale, secondary treatment is the standard requirement, ensuring removal of organic matter and suspended solids before discharge. The treated effluent is discharged into the Wabash River, which flows southwest to the Ohio River and ultimately to the Mississippi River. The Wabash River supports diverse aquatic life and is an important ecological corridor in the region.

The plant discharges into the Wabash River, a major tributary of the Ohio River, which drains into the Mississippi River and the Gulf of Mexico. The Wabash River watershed supports a variety of fish species and provides habitat for migratory birds. The plant's discharge contributes to the river's flow and must meet water quality standards to protect downstream ecosystems.