Hampshire WWTP - Elgin, Illinois | Advanced Wastewater Treatment

Hampshire WWTP is a municipal wastewater treatment facility located at 326 Mill Street in Elgin, Illinois, within Kane County. The plant serves a population of approximately 2,900 residents, classifying it as a small-scale treatment facility in the Fox River watershed region. The plant employs advanced treatment processes, which go beyond secondary treatment to remove additional nutrients and contaminants. With a designed capacity of 2,839.05 volume units and a current discharge volume of 908.50, the facility operates well within its capacity. As a US plant, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Illinois Environmental Protection Agency, which set effluent limits to protect water quality. The treated effluent from Hampshire WWTP is discharged to a receiving water body that ultimately drains into the Fox River, a tributary of the Illinois River, which flows into the Mississippi River and eventually the Gulf of Mexico. The plant plays a key role in protecting local water quality and supporting aquatic life in the Fox River basin.

The plant discharges into a water body within the Fox River watershed, which flows into the Illinois River and then the Mississippi River, ultimately reaching the Gulf of Mexico. The Fox River supports diverse aquatic species and is an important recreational and ecological resource in northeastern Illinois. Advanced treatment at this plant helps reduce nutrient loading, which is critical for preventing algal blooms and maintaining oxygen levels downstream.