HOLT WWTP - Secondary Treatment Plant in Clay County, Missouri

HOLT WWTP is a municipal wastewater treatment facility located in Clay County, Missouri, United States. It serves a small population of 447 residents, reflecting its role in a rural or suburban community within the state. The plant provides secondary treatment, which is the standard biological treatment process required under the U.S. Clean Water Act for most municipal facilities. With a designed capacity of 268.76 units and a current discharge volume of 177.91 units, the plant operates within its capacity. As a U.S. facility, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Missouri Department of Natural Resources, ensuring compliance with water quality standards. The treated effluent is discharged into a local water body, which ultimately drains into the Missouri River watershed and then the Mississippi River system. This downstream connection highlights the plant's role in protecting regional water quality and aquatic ecosystems in the central United States.

The plant discharges into a local stream that flows into the Missouri River, a major tributary of the Mississippi River. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's secondary treatment helps reduce organic pollutants and suspended solids, protecting the ecological health of the river system.