Overview
N KY SD1 Eastern Regional STP serves Alexandria, Kentucky, treating wastewater for approximately 11,280 residents. The plant operates under the U.S. Clean Water Act's NPDES permit program, ensuring compliance with federal discharge standards.
N KY SD1 Eastern Regional STP is a municipal wastewater treatment facility located in Alexandria, Kentucky, within Campbell County. The plant serves a population of about 11,280 people, classifying it as a medium-sized agglomeration under U.S. regulatory frameworks. It is part of the Sanitation District No. 1 of Northern Kentucky's regional infrastructure. As a U.S. facility, the plant operates under the National Pollutant Discharge Elimination System (NPDES) permit program, authorized by the Clean Water Act. This regulatory framework requires treatment plants to meet specific effluent limits based on the receiving water body's designated uses. For a plant of this scale, secondary treatment is typically mandated, with potential additional requirements for nutrient removal if discharging into sensitive waters. The treated effluent from the plant ultimately drains into the Ohio River basin, which flows into the Mississippi River and then to the Gulf of Mexico. The Ohio River supports diverse aquatic life and serves as a major drinking water source for millions. The plant's discharge must comply with state and federal standards to protect downstream water quality and ecological health.
Environmental context
The plant's discharge enters the Ohio River watershed, a major tributary of the Mississippi River system. The Ohio River supports a variety of fish species and provides habitat for freshwater mussels. Downstream, the Mississippi River delivers nutrients to the Gulf of Mexico, where excess nitrogen and phosphorus can contribute to hypoxic zones. The plant's treatment processes help mitigate nutrient loading in this context.
Frequently asked questions
The plant is located at 8849 East Main Street in Alexandria, Kentucky, within Campbell County.
The plant serves approximately 11,280 residents in the Alexandria area and surrounding parts of Campbell County.
The treated effluent is discharged into the Ohio River basin, which flows into the Mississippi River and eventually the Gulf of Mexico.
The plant operates under the U.S. Clean Water Act, requiring an NPDES permit issued by the Kentucky Division of Water. This permit sets effluent limits to protect water quality.
For medium-sized agglomerations like this, secondary treatment is standard, often including biological processes such as activated sludge. Additional nutrient removal may be required if the receiving water body is sensitive to eutrophication.
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