COV Kostelec nemocnice - Secondary Wastewater Treatment Plant in Kostelec nad Černými lesy, Czech Republic

COV Kostelec nemocnice is a wastewater treatment plant located in Kostelec nad Černými lesy, in the Středočeský kraj region of the Czech Republic. The plant serves a population of 1,002 and operates with secondary treatment, which is standard for small agglomerations under Czech and EU regulations. The plant has a designed capacity of 3,000 m³/day and currently treats an average daily flow of 559.25 m³/day, indicating significant spare capacity. As a secondary treatment facility, it meets the requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations under 10,000 population equivalent, which mandates secondary treatment for freshwater discharges. The treated effluent is discharged into local watercourses that eventually drain into the Labe (Elbe) River basin, which flows through Germany to the North Sea. The plant plays a key role in protecting the local watershed and downstream aquatic ecosystems from nutrient pollution.

The plant discharges into the local stream network that feeds the Výrovka River, a tributary of the Labe (Elbe) River. The Elbe flows through Germany and into the North Sea, making this plant part of a transboundary basin. The watershed supports diverse aquatic life and is important for regional water quality, particularly in controlling nutrient loads that can cause eutrophication downstream.