COV Chyne Wastewater Treatment Plant, Chýně, Středočeský kraj

COV Chyne is a municipal wastewater treatment plant located in Chýně, a town in the Středočeský kraj (Central Bohemian Region) of the Czech Republic. The plant serves a population of around 2,000 residents, reflecting its role in managing domestic wastewater for this small community. Its location near Hostivická street places it within the broader water management infrastructure of the Prague-West District. The plant provides secondary treatment, which is the standard biological treatment level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 6,000 m³/day and a current discharge volume of 361 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variability. The treated effluent is discharged into local watercourses that ultimately drain into the Vltava River basin, a major tributary of the Elbe River. The Vltava-Elbe system flows through Central Europe to the North Sea, making the plant's discharge relevant to downstream water quality in both Czech and German territories. The plant's performance contributes to protecting aquatic ecosystems in this densely populated and agriculturally active region.

COV Chyne discharges into the local watershed that feeds the Vltava River, a key tributary of the Elbe River. The Elbe flows through Germany to the North Sea, making this plant part of a transboundary river basin. The downstream environment supports diverse aquatic life and is used for recreation and drinking water supply. The region's moderate climate and mixed urban-agricultural land use mean that nutrient loading from wastewater must be carefully managed to prevent eutrophication in receiving waters.