Jagodne Wastewater Treatment Plant, Niedźwiedzie, Poland

Jagodne wastewater treatment plant is located in Niedźwiedzie, within the gmina Pisz, powiat piski, województwo warmińsko-mazurskie, Poland. The plant serves a population of approximately 15,725, placing it in the medium agglomeration category under Polish and EU regulations. As a Polish facility, Jagodne operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are sensitive. The regulatory framework ensures compliance with national and EU standards. The treated effluent from Jagodne likely discharges into local watercourses that drain into the Pisa River, a tributary of the Narew River, which flows into the Vistula River and ultimately into the Baltic Sea. The region's aquatic ecosystems benefit from the plant's pollution control, supporting biodiversity in the warmińsko-mazurskie lake district.

The plant's receiving waters are part of the Vistula River basin, which drains into the Baltic Sea. The warmińsko-mazurskie region is characterized by numerous lakes and rivers, making water quality protection crucial for local aquatic life and recreational uses. The downstream Pisa and Narew rivers support diverse fish populations and migratory birds, emphasizing the need for effective wastewater treatment to prevent eutrophication and maintain ecological balance.