Tulce Wastewater Treatment Plant – Secondary Treatment for Tulce, Greater Poland

Tulce wastewater treatment plant is located in the village of Tulce, within the Poznań County of Greater Poland Voivodeship. The facility serves a population of approximately 1,287 residents, classifying it as a small agglomeration under Polish and EU regulations. The plant is situated at 52.349°N, 17.064°E, in an inland area more than 50 km from the Baltic coast. The plant operates with secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity is 3,600 m³/day, and the current discharge volume is 183.51 m³/day, indicating significant spare capacity. As a Polish facility, it is subject to national water law and permits issued by the Regional Water Management Board (RZGW), which enforce effluent quality standards aligned with the directive. The treated wastewater is discharged into local watercourses that eventually drain into the Warta River basin, a major tributary of the Oder River. The Oder flows northward to the Baltic Sea via the Szczecin Lagoon. The plant plays a role in protecting the local aquatic environment, including small streams and groundwater, from nutrient and organic pollution, supporting the ecological health of the broader Oder catchment.

The plant discharges into small watercourses within the Warta River basin, which flows into the Oder River and ultimately reaches the Baltic Sea via the Szczecin Lagoon. The region is part of the Central European lowlands, with a temperate climate and agricultural land use. The receiving waters support diverse aquatic life and are important for local biodiversity, though they are not within any designated protected area. The plant's secondary treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in downstream waters.