COV Kos Wastewater Treatment Plant, Koš, Slovakia

COV Kos is a wastewater treatment plant located in the village of Koš, within the Trenčiansky kraj region of Slovakia. The plant serves a small population of 112 residents, reflecting its role in a rural community. It is situated inland, away from coastal areas, and operates under Slovak national regulations aligned with EU directives. The plant employs advanced treatment processes, ensuring a high level of pollutant removal. With a designed capacity of 250 m³/day and an actual discharge volume of 22.92 m³/day, the facility operates well below its capacity, indicating potential for future growth or seasonal variations. As an advanced treatment plant, it meets stringent effluent quality standards required for sensitive areas under the EU Urban Waste Water Treatment Directive. The treated effluent is discharged into local water bodies that eventually drain into the Váh River basin, a major tributary of the Danube River. The Danube flows into the Black Sea, making this plant part of a large international watershed. The advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the region.

The plant discharges into local streams that feed into the Váh River, a significant tributary of the Danube River. The Danube ultimately flows into the Black Sea, making this plant part of a vast transboundary watershed. The advanced treatment level helps protect sensitive aquatic habitats and supports biodiversity in the downstream river systems, which are important for migratory fish and other wildlife.