COV Leopoldov nova - Closed Wastewater Treatment Plant in Leopoldov, Slovakia

COV Leopoldov nova is a wastewater treatment plant located in Leopoldov, a town in the Trnavský kraj region of western Slovakia. The plant provided secondary treatment for the local community before its closure. As a secondary treatment facility, it would have met the requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary biological treatment for agglomerations of this scale. The plant is now closed, and its operational history reflects the evolving infrastructure needs of the region. The plant's receiving waters ultimately 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 that supports diverse aquatic ecosystems and multiple downstream communities.

The plant is located inland in the Váh River basin, which flows into the Danube River and ultimately the Black Sea. This watershed supports diverse aquatic life and provides water for agriculture and industry. The closure of the plant may reduce local pollutant loads to the Váh, benefiting downstream water quality in the Danube Delta ecosystem.