Oborniki Sl ul II Armii WP Wastewater Treatment Plant, Oborniki Śląskie, Poland

The Oborniki Sl ul II Armii WP wastewater treatment plant is located in Oborniki Śląskie, a town in the Lower Silesian Voivodeship of southwestern Poland. The facility serves a population of around 3,275 residents, classifying it as a small agglomeration under Polish and EU regulations. The plant provides advanced treatment, which goes beyond the EU Urban Waste Water Treatment Directive's minimum requirement of secondary treatment for agglomerations of this size. This level of treatment typically includes nutrient removal to protect sensitive water bodies. The plant has a designed capacity of 2,000 m³/day and discharges an average volume of 466.96 m³/day, indicating operational capacity utilization. The treated effluent is discharged into local watercourses that eventually drain into the Oder River basin, which flows northward to the Baltic Sea. The advanced treatment helps protect downstream aquatic ecosystems, including the Oder River and its delta, which support diverse fish populations and migratory bird species.

The plant discharges into local streams that are part of the Oder River basin. The Oder River flows through Poland and Germany before reaching the Baltic Sea via the Szczecin Lagoon. The region's watershed supports diverse aquatic life, including fish species such as pike and perch, and provides important habitat for waterfowl. Advanced treatment at this plant helps reduce nutrient loads, mitigating eutrophication risks in the Baltic Sea.