Naklo nad Notecia Wastewater Treatment Plant, Bielawy, Poland

The Naklo nad Notecia wastewater treatment plant is located in Bielawy, within the gmina Nakło nad Notecią in the kujawsko-pomorskie voivodeship of Poland. The facility serves a population of around 20,451, classifying it as a medium-sized agglomeration under EU classification. As a Polish plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size, with tertiary treatment in sensitive areas. The plant's discharge likely flows into the Noteć River, a tributary of the Warta River, which ultimately drains into the Oder River and the Baltic Sea. This waterway supports diverse aquatic life and is part of a regional drainage network important for both ecological balance and human use.

The plant's treated effluent is discharged into the Noteć River basin, which flows through the kujawsko-pomorskie region. The Noteć joins the Warta River, a major tributary of the Oder River, which empties into the Baltic Sea. This watershed supports a variety of fish species and provides habitat for migratory birds. The area is ecologically sensitive due to its role in maintaining water quality in the downstream Oder estuary and Baltic coastal zone.