Dabrowa Biskupia Wastewater Treatment Plant - Kuyavian-Pomeranian, Poland

The Dabrowa Biskupia wastewater treatment plant is located in the village of Dąbrowa Biskupia, within the Kuyavian-Pomeranian Voivodeship of Poland. This facility serves a population of 2,269 residents, classifying it as a small agglomeration under Polish and EU regulations. The plant is situated inland, away from coastal areas, and its operations are integrated into the local municipal infrastructure. The plant provides secondary treatment, which is the minimum required for agglomerations of this size under the EU Urban Waste Water Treatment Directive (91/271/EEC). With a designed capacity of 1,940 cubic meters per day and a current discharge volume of 323.52 cubic meters per day, the facility operates well within its capacity. Polish wastewater treatment plants are regulated by national laws transposing EU directives, with permits issued by regional water management authorities. The treated effluent is discharged into local watercourses that ultimately drain into the Vistula River basin, which flows into the Baltic Sea. The plant plays a crucial role in protecting the region's water quality, particularly for the small rivers and streams in the area that support diverse aquatic life and are part of the larger Baltic Sea catchment.

The plant discharges into local water bodies that are part of the Vistula River basin, which flows northward into the Baltic Sea. This region's watershed supports diverse aquatic ecosystems, including fish spawning grounds and migratory bird habitats. The Baltic Sea is a sensitive brackish environment, and nutrient reduction from wastewater treatment is critical to combat eutrophication. The plant's secondary treatment helps reduce organic pollutants and nutrients, contributing to the health of downstream waters.