COV Rudna Horelice Wastewater Treatment Plant, Rudná, Czech Republic

COV Rudna Horelice is a municipal wastewater treatment plant located in the Hořelice district of Rudná, a town in the Středočeský kraj region of the Czech Republic. The plant serves a population of approximately 8,493 people, placing it in the small-to-medium agglomeration category under Czech and EU regulations. As a plant serving fewer than 10,000 population equivalent, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires appropriate treatment based on the sensitivity of the receiving waters. Plants of this scale typically employ mechanical-biological treatment with nutrient removal if discharging into sensitive areas. The treated effluent from COV Rudna Horelice is discharged into local watercourses that ultimately drain into the Vltava River basin, a major tributary of the Elbe River. The Elbe flows through Germany into the North Sea, making this plant part of a transboundary river system with significant ecological importance for aquatic life and water quality downstream.

The plant discharges into the Vltava River basin, which flows into the Elbe River and eventually the North Sea. This watershed supports diverse aquatic ecosystems and is an important migratory corridor for fish species. The region's water quality is managed under the EU Water Framework Directive, which aims to achieve good ecological status for all water bodies.