Union PSD 40th Street WWTP - South Charleston, West Virginia Wastewater Treatment

Union PSD 40th Street WWTP is a municipal wastewater treatment facility located in South Charleston, West Virginia, within Kanawha County. The plant serves a population of around 14,058 residents, placing it in the small-to-medium agglomeration category under U.S. regulatory standards. As a U.S. facility, the plant is subject to the Clean Water Act and operates under a National Pollutant Discharge Elimination System (NPDES) permit issued by the West Virginia Department of Environmental Protection or the U.S. EPA. The plant discharges treated effluent into a local waterway that ultimately drains into the Kanawha River, a major tributary of the Ohio River. The Kanawha River supports diverse aquatic life and is an important regional water resource for recreation and industry. The plant's operations help protect downstream water quality in the Ohio River basin.

The plant's treated effluent flows into a tributary of the Kanawha River, which joins the Ohio River near Point Pleasant, West Virginia. The Ohio River is a major waterway that drains into the Mississippi River and eventually the Gulf of Mexico. The Kanawha River watershed supports diverse fish populations and is used for recreation and drinking water supply. The plant's discharge must meet state and federal water quality standards to protect aquatic ecosystems and downstream users.