COV Sala Wastewater Treatment Plant, Šaľa, Slovakia

COV Sala is a municipal wastewater treatment plant located in Šaľa, a town in the Nitriansky kraj region of western Slovakia. The plant serves a population of approximately 15,692, placing it in the medium agglomeration category under EU classification. As a Slovak facility, COV Sala operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. The regulatory framework ensures compliance with EU standards. The treated effluent from COV Sala is discharged into local water bodies that ultimately drain into the Váh River, a major tributary of the Danube River. The Danube flows into the Black Sea, making this plant part of a large international river basin. The surrounding region supports diverse aquatic life and agricultural activities, highlighting the importance of effective wastewater treatment.

The plant discharges into the Váh River basin, which flows into the Danube River and eventually reaches the Black Sea. This watershed supports diverse aquatic ecosystems and is used for irrigation and recreation. Effective treatment is essential to protect downstream water quality and ecological health.