Lagiewniki Wastewater Treatment Plant - Łagiewniki, Lower Silesia, Poland

Lagiewniki wastewater treatment plant is located in Łagiewniki, a town in the Lower Silesian Voivodeship of Poland. The facility serves a population of 713 and provides secondary treatment, which is the standard level required under Polish regulations for small agglomerations. As a secondary treatment plant, Lagiewniki removes organic matter and suspended solids through biological processes. The plant's designed capacity is 46950 volume units, and it discharges 101.66 volume units of treated wastewater. The facility operates under Poland's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for all agglomerations above 2,000 population equivalent, though smaller plants like this one are also expected to meet appropriate standards. The treated effluent is discharged into local watercourses that drain into the Oder River basin. The Oder flows northward to the Baltic Sea, passing through ecologically important areas including the Lower Oder Valley and the Szczecin Lagoon. The plant's location inland and its secondary treatment level contribute to protecting the local watershed from untreated pollution.

The treated wastewater from Lagiewniki plant enters local streams that are part of the Oder River basin. The Oder River flows through western Poland and ultimately reaches the Baltic Sea via the Szczecin Lagoon. This watershed supports diverse aquatic life and is an important ecological corridor for migratory fish species. The secondary treatment provided by the plant helps reduce nutrient loads that could otherwise contribute to eutrophication in downstream waters.