Oczyszczalnia Holdunow - Advanced Wastewater Treatment Plant in Mysłowice, Poland

Oczyszczalnia Holdunow is a municipal wastewater treatment plant located in Mysłowice, within the Silesian Voivodeship of southern Poland. The facility serves a population of approximately 2,079 residents, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant operates with advanced treatment processes, ensuring high-quality effluent before discharge. As a small-scale facility, Oczyszczalnia Holdunow is subject to the EU UWWTD, which mandates secondary treatment for agglomerations of this size. The plant's advanced treatment level exceeds the minimum requirement, indicating a commitment to environmental protection. The designed capacity of 8,500 m³/day suggests the plant has room for future growth or seasonal variations. The treated wastewater is discharged into local rivers that ultimately drain into the Vistula River basin, which flows into the Baltic Sea. The plant plays a key role in protecting the region's water quality and supporting the ecological health of downstream aquatic habitats.

The plant discharges into the Vistula River basin, which flows northward through Poland and empties into the Baltic Sea. This watershed supports diverse aquatic life and is an important ecological corridor. The advanced treatment helps reduce nutrient loads, mitigating eutrophication risks in the Baltic Sea.