TILTON STP Wastewater Treatment Plant, Central Park, Illinois

TILTON STP is a municipal wastewater treatment plant located in Central Park, Illinois, within the village of Tilton. Serving a population of about 2,724, the facility is part of the region's infrastructure managed under state and federal oversight. The plant's location in Vermilion County places it in a rural setting, contributing to local sanitation and water quality. As a small-scale facility, TILTON STP is subject to the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater. The plant's treatment processes are designed to meet National Pollutant Discharge Elimination System (NPDES) permit conditions, ensuring effluent standards are maintained. Typical plants of this size employ biological treatment followed by disinfection. The treated effluent from TILTON STP is discharged into local waterways that drain into the Vermilion River, a tributary of the Wabash River, which ultimately flows to the Ohio River and Mississippi River. This watershed supports diverse aquatic life and provides recreational opportunities. The plant's operation helps protect downstream water quality and ecological health.

TILTON STP discharges into the Vermilion River watershed, which flows into the Wabash River, then the Ohio and Mississippi Rivers. The receiving waters support fish populations and aquatic habitats, making proper treatment essential to prevent nutrient pollution and maintain ecosystem balance. The plant's location in an inland agricultural region means its effluent can affect local streams and groundwater.