NEWARK STP - Secondary Wastewater Treatment Plant in Newark, Illinois

NEWARK STP is a municipal wastewater treatment facility located in Newark, Illinois, United States. It serves a small population of approximately 887 residents in the Fox Township area of Kendall County. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for inland communities of this size. The plant has a designed capacity of 1,078.84 m³/day and currently discharges an average of 302.83 m³/day of treated effluent. As a secondary treatment facility, it utilizes biological processes to reduce organic matter and suspended solids before discharge. The plant operates under the U.S. National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated wastewater from NEWARK STP is discharged into local waterways that ultimately drain into the Illinois River basin. The Illinois River flows southwest to join the Mississippi River, which empties into the Gulf of Mexico. The plant's discharge contributes to the overall water quality of the Fox River watershed, supporting aquatic life and downstream uses.

NEWARK STP discharges into the Fox River watershed, which flows into the Illinois River and eventually the Mississippi River and Gulf of Mexico. The Fox River supports diverse aquatic species and is an important recreational and ecological resource in northern Illinois. The plant's secondary treatment helps reduce nutrient loads that could contribute to eutrophication in downstream waters, including the hypoxic zone in the Gulf of Mexico.