Pszczyna Wastewater Treatment Plant, Jankowice, Silesian Voivodeship

The Pszczyna wastewater treatment plant is located in Jankowice, within the gmina Pszczyna in the Silesian Voivodeship of southern Poland. It serves a population of approximately 25,109 people, classifying it as a medium agglomeration under EU regulations. The plant is part of the municipal infrastructure managed by local authorities. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are required to provide secondary treatment as a minimum. In sensitive areas, more stringent treatment may be mandated. The plant's treatment processes are designed to meet these regulatory standards, ensuring compliance with Polish and EU environmental law. The treated effluent is discharged into local watercourses that ultimately drain into the Vistula River basin, which flows northward to the Baltic Sea. The plant plays a vital role in protecting the region's water quality, supporting aquatic ecosystems, and safeguarding downstream environments from nutrient pollution.

The plant discharges into the Vistula River basin, which drains into the Baltic Sea via the Vistula Delta. This watershed supports diverse aquatic life and is an important ecological corridor. The treatment plant helps reduce nutrient loads, particularly nitrogen and phosphorus, which can cause eutrophication in the Baltic Sea.