OS w Pankach Wastewater Treatment Plant, Dąbrówka, Poland

OS w Pankach dla miejscowosci Panki i miejscowosci Przystajn is a wastewater treatment plant located in Dąbrówka, within the gmina Wielowieś, powiat gliwicki, in the śląskie voivodeship of Poland. The plant serves a population of 2,953, treating municipal wastewater from the communities of Panki and Przystajn. The plant provides secondary treatment, which is the standard biological treatment required under Polish regulations implementing the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), secondary treatment is the minimum requirement, and the plant's designed capacity of 8,700 m³/day is consistent with the scale of the served population. The treated effluent is discharged into local watercourses that ultimately drain into the Oder River basin. The Oder flows northward to the Baltic Sea, passing through ecologically significant areas including floodplain forests and wetlands that support diverse aquatic life. The plant's secondary treatment helps protect these downstream ecosystems from organic pollution.

The plant discharges into small streams within the Oder River basin, which flows through southwestern Poland and into the Baltic Sea. The Oder basin supports important habitats for fish species such as the European eel and various migratory birds. Secondary treatment reduces biochemical oxygen demand and suspended solids, helping maintain water quality in the downstream rivers and ultimately the Baltic Sea.