Radocha II Wastewater Treatment Plant, Mysłowice, Poland

Radocha II is a major wastewater treatment plant located in Mysłowice, within the Silesian Voivodeship of southern Poland. It serves a population of over 400,000, classifying it as a large agglomeration under EU regulations. The plant is part of the region's critical water infrastructure, supporting the densely populated Upper Silesian metropolitan area. As a large-scale facility, Radocha II is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary or more advanced treatment for agglomerations of this size. The directive also mandates tertiary treatment in sensitive areas, which may apply given the region's industrial and environmental context. The plant's treatment processes are designed to meet these stringent standards, ensuring effective pollutant removal before discharge. The treated effluent from Radocha II is discharged into local watercourses that ultimately flow into the Vistula River basin, which drains into 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 and other contaminants.

Radocha II discharges into the Upper Vistula River basin, which flows northward through Poland and empties into the Baltic Sea via the Vistula Lagoon. The region's watershed supports diverse aquatic life and is ecologically sensitive due to industrial and urban pressures. The plant's advanced treatment helps reduce nutrient loads, mitigating eutrophication risks in the Baltic Sea.