COV Cernosice Wastewater Treatment Plant, Černošice, Czech Republic

COV Cernosice is a wastewater treatment plant located in Černošice, a town in the Středočeský kraj region of the Czech Republic. The plant serves a population of about 4,028, placing it in the small agglomeration category under EU classification. As a small-scale facility, COV Cernosice is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires appropriate treatment for discharges into inland waters. Plants of this size typically employ secondary biological treatment to meet effluent standards. The plant discharges treated wastewater into local watercourses that drain into the Berounka River, a tributary of the Vltava River, which flows through Prague and eventually joins the Elbe River before reaching the North Sea. This connection highlights the plant's role in protecting downstream water quality in a densely populated region.

The plant's treated effluent enters the local watershed, which feeds into the Berounka River and then the Vltava River, a major waterway in Central Europe. The Vltava flows through Prague and joins the Elbe, which discharges into the North Sea. This river system supports diverse aquatic life and provides drinking water for millions, making effective wastewater treatment critical for ecological and public health.