Oczyszczalnia Ścieków Włoszczowa - Wastewater Treatment Plant in Włoszczowa, Poland

Oczyszczalnia Ścieków Włoszczowa is a municipal wastewater treatment facility located in Włoszczowa, in the świętokrzyskie province of Poland. It serves a population of about 8,879 people, placing it in the small to medium agglomeration category under EU classification. As a Polish wastewater treatment plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The plant's treatment processes and capacity are managed to meet national and EU standards for effluent quality. The treated wastewater is discharged into local water bodies that eventually drain into the Vistula River basin, which flows into the Baltic Sea. This connection underscores the plant's role in protecting downstream aquatic ecosystems and the Baltic Sea from nutrient pollution.

The plant discharges into the local watershed, which is part of the Vistula River basin. The Vistula flows northward through Poland and empties into the Baltic Sea. This region supports diverse aquatic life and is important for migratory fish species. Effective treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in the Baltic Sea.