Clay Township RWD Wastewater Treatment Plant, Zionsville, Indiana

Clay Township RWD is a municipal wastewater treatment facility located in Zionsville, Boone County, Indiana. Serving an estimated population of 14,490, the plant is part of the region's infrastructure for managing residential and commercial wastewater. The facility is situated inland, more than 50 kilometers from the nearest coast, and its operations are subject to state and federal regulations. Under the US Clean Water Act, wastewater treatment plants of this scale are typically required to meet secondary treatment standards through the National Pollutant Discharge Elimination System (NPDES) permit program. The plant likely employs conventional biological treatment methods to reduce pollutants before discharge. It serves a medium-sized agglomeration in a suburban setting. The treated effluent from Clay Township RWD is discharged into local streams that ultimately drain into the Wabash River basin, a major tributary of the Ohio River and Mississippi River system. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's discharge must comply with water quality standards to protect these receiving waters and their ecological functions.

The plant discharges into streams within the Wabash River basin, which flows into the Ohio River and then the Mississippi River before reaching the Gulf of Mexico. This watershed supports a variety of fish and wildlife, including species that rely on clean water for spawning and migration. The area is part of the Midwestern agricultural landscape, where nutrient runoff from farms can impact water quality, making the plant's treatment performance important for downstream ecosystems.