PLANO STP Wastewater Treatment Plant, Plano, Illinois

PLANO STP is a municipal wastewater treatment plant located at 14262 South Hale Street in Plano, Illinois, a community in Kendall County. The facility serves a population of about 16,256 people, classifying it as a medium-sized agglomeration under US regulatory standards. As a US-based plant, PLANO STP operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Illinois Environmental Protection Agency. For a plant serving this population, secondary treatment is typically required, with potential nutrient removal standards depending on the receiving water body's sensitivity. The plant discharges treated effluent into the local watershed, which ultimately drains into the Fox River and then the Illinois River system. This waterway supports diverse aquatic life and provides recreational and ecological value to the region. The plant's location inland reduces direct marine impact, but its discharge contributes to the overall water quality of the Mississippi River basin.

PLANO STP discharges into the Fox River watershed, which flows into the Illinois River and eventually the Mississippi River. The Fox River supports diverse aquatic species and is an important recreational resource. The plant's effluent must meet state and federal water quality standards to protect downstream ecosystems, including fish habitats and drinking water sources.