CADIZ STP - Secondary Wastewater Treatment Plant in Cadiz, Kentucky

CADIZ STP is a municipal wastewater treatment facility located in Cadiz, Trigg County, Kentucky, United States. The plant serves a population of approximately 2,500 residents, reflecting a small community scale typical of rural Kentucky towns. It is situated inland, more than 10 km from the coast, and operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment as a minimum standard for municipal wastewater plants. The plant provides secondary treatment, a biological process that significantly reduces organic matter and suspended solids. With a designed capacity of 2,914.76 volume units and a current discharge volume of 859.29 volume units, the facility operates well below its capacity, indicating room for future growth. As a US plant, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Kentucky Division of Water, ensuring compliance with effluent limits. The treated effluent from CADIZ STP is discharged into a local water body, likely a tributary of the Cumberland River or Tennessee River system, which ultimately drains into the Ohio River and then the Mississippi River. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's operations help protect water quality in this ecologically important river basin.

CADIZ STP discharges into a receiving water body within the Cumberland River basin, which flows into the Ohio River and eventually the Mississippi River. This watershed supports diverse aquatic species and provides critical habitat for fish and migratory birds. The plant's secondary treatment helps reduce nutrient loading and organic pollution, safeguarding downstream water quality in this ecologically sensitive region.