Wielki Klincz Wastewater Treatment Plant - Secondary Treatment Serving 2,736 People in Pomerania

The Wielki Klincz wastewater treatment plant is located in the village of Wielki Klincz, within the Kościerzyna commune in Pomeranian Voivodeship, Poland. This facility serves a population of 2,736, classifying it as a small agglomeration under Polish and EU regulations. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. It has a designed capacity of 7,176 m³/day and currently discharges 390.11 m³/day of treated wastewater. The plant operates under Polish environmental permits, which align with EU standards for effluent quality. The treated effluent is discharged into local watercourses that eventually drain into the Baltic Sea via the Vistula River basin. The facility plays a key role in protecting the region's surface waters from nutrient pollution, supporting the ecological health of downstream rivers and the Baltic Sea.

The plant discharges into local streams that flow into the Wierzyca River, a tributary of the Vistula, which ultimately reaches the Baltic Sea. The Baltic Sea is a semi-enclosed brackish sea sensitive to nutrient enrichment, making effective wastewater treatment critical for reducing eutrophication. The region's post-glacial landscape features numerous lakes and wetlands that benefit from controlled nutrient loads.