COV Unhost Wastewater Treatment Plant, Unhošť, Středočeský kraj

COV Unhost is a municipal wastewater treatment plant located in Unhošť, a town in the Středočeský kraj region of the Czech Republic. The plant serves a population of approximately 2,446 people and has a designed capacity of 5,000 m³ per day, indicating it is sized for a small agglomeration. The plant provides secondary treatment, which is the minimum standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for discharges into freshwater bodies. As a small agglomeration (under 10,000 population equivalent), the plant is not required to meet tertiary treatment standards unless discharging into a sensitive area. The treated effluent is discharged into the local watershed, which ultimately drains into the Vltava River basin and then into the Elbe River, flowing to the North Sea. The plant plays a key role in protecting the water quality of these downstream water bodies from nutrient and organic pollution.

The plant discharges into the local water network that feeds into the Vltava River, a major tributary of the Elbe River. The Elbe flows through Germany and into the North Sea, making this plant part of a transboundary river basin. The watershed supports diverse aquatic life and is an important ecological corridor in Central Europe. The plant's secondary treatment helps reduce organic load and protect downstream habitats from eutrophication.