Horicon WWTP - Reeseville, Wisconsin Wastewater Treatment Plant

Horicon WWTP is a municipal wastewater treatment facility located in Reeseville, Dodge County, Wisconsin. Serving a population of approximately 3,729, the plant is part of the region's infrastructure for managing domestic wastewater. The facility is situated inland, away from coastal areas, and its operations are subject to state and federal environmental standards. As a plant serving a small agglomeration, Horicon WWTP is expected to meet secondary treatment standards under the U.S. Clean Water Act, administered through Wisconsin's Pollutant Discharge Elimination System (WPDES) permits. Typical facilities of this scale employ biological treatment followed by disinfection to protect water quality. The treated effluent from Horicon WWTP discharges into local streams that flow into the Rock River basin, ultimately reaching the Mississippi River. This watershed supports diverse aquatic life and is important for regional water resources. The plant's performance is monitored to ensure compliance with discharge limits that safeguard downstream ecosystems.

The plant discharges into tributaries of the Rock River, which flows southward to join the Mississippi River. This watershed provides habitat for fish and wildlife, including migratory birds along the Mississippi Flyway. Protecting water quality in this basin is essential for maintaining ecological balance and supporting recreational uses such as fishing and boating.