Ujazd Dolny Wastewater Treatment Plant - Closed Secondary Facility in Lower Silesia

Ujazd Dolny wastewater treatment plant is located in the village of Ujazd Dolny, within gmina Udanin, powiat średzki, in the Lower Silesian Voivodeship of Poland. The plant served the local community as a secondary treatment facility before its closure. As a Polish wastewater treatment plant, it operated under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this scale. The plant's designed capacity of 3305 m³/day indicates it was sized for a moderate population load. The area drains into the Oder River basin, which flows northward to the Baltic Sea. The closure of this facility suggests that wastewater treatment responsibilities have been transferred to a newer or upgraded plant in the region.

The plant is situated in the Oder River basin, a major waterway that flows through Poland and Germany before emptying into the Baltic Sea. The Oder basin supports diverse aquatic ecosystems and is an important migratory corridor for fish species. The closure of this plant likely reduces local discharge impacts, but the overall watershed health depends on the performance of remaining treatment facilities in the region.