Overview
Columbia Regional WWTP serves approximately 135,000 people in Columbia, Missouri. The plant operates under the US Clean Water Act, which mandates secondary treatment for municipal wastewater facilities.
Columbia Regional WWTP is a major wastewater treatment facility located in Columbia, Boone County, Missouri. Serving an estimated population of 135,465, it is classified as a large municipal treatment plant within the state's wastewater infrastructure. Under the US Clean Water Act, the plant is required to meet National Pollutant Discharge Elimination System (NPDES) permit standards, which typically mandate secondary treatment for facilities of this scale. The Missouri Department of Natural Resources oversees permitting and compliance to ensure treated effluent meets water quality standards before discharge. The plant's treated effluent is discharged into local waterways that ultimately drain into the Missouri River, a major tributary of the Mississippi River system. This connection to the Mississippi River basin means the plant's operations affect downstream aquatic ecosystems and water quality across a broad region.
Environmental context
The plant discharges into receiving waters that flow into the Missouri River, which then joins the Mississippi River before reaching the Gulf of Mexico. This watershed supports diverse aquatic life and is an important migratory corridor for fish and birds. The plant's nutrient removal performance is critical to reducing downstream hypoxia in the Gulf of Mexico.
Frequently asked questions
Columbia Regional WWTP is located in Columbia, Boone County, Missouri, United States.
The plant serves approximately 135,465 people, classifying it as a large municipal wastewater treatment facility.
The plant discharges treated effluent into local waterways that drain into the Missouri River, part of the Mississippi River basin.
The plant operates under the US Clean Water Act, requiring an NPDES permit issued by the Missouri Department of Natural Resources, which sets limits on pollutants to protect water quality.
Under the Clean Water Act, municipal plants of this size are typically required to provide secondary treatment, which includes biological processes to remove organic matter and suspended solids.
Nearby plants