Richmond Sewage TMT Plant | Wastewater Treatment in Richmond, Illinois

The Richmond Sewage TMT Plant is a municipal wastewater treatment facility located in Richmond, Illinois, a village in McHenry County. Serving a population of approximately 1,874, the plant is part of the local infrastructure managed by the village or county authorities. As a small-scale facility, it plays a key role in treating domestic wastewater from the community. Under the US Clean Water Act, wastewater treatment plants of this size are typically required to meet secondary treatment standards through the National Pollutant Discharge Elimination System (NPDES) permit program. The plant's treatment processes are designed to reduce organic matter and suspended solids before discharge, ensuring compliance with state and federal water quality regulations. The treated effluent is discharged into a local waterway that eventually drains into the Fox River watershed, which flows into the Illinois River and ultimately the Mississippi River. This connection to a major river system underscores the plant's role in protecting downstream water quality and aquatic habitats in the region.

The plant discharges into a tributary of the Fox River, which flows into the Illinois River and then the Mississippi River. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's operations help maintain water quality in this ecologically important river system, which is a key migratory corridor for fish and birds.