Overview
Rzezusnia wastewater treatment plant in Ostrężnica, Poland, serves a population of 3,619 with secondary treatment. It discharges 516.01 m³/day of treated wastewater, operating under EU Urban Waste Water Treatment Directive standards.
Rzezusnia is a wastewater treatment plant located in Ostrężnica, within the małopolskie province of Poland. It serves a population equivalent of 3,619, placing it in the small agglomeration category 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 inland freshwater discharges from agglomerations of this size. The designed capacity is 2,405.00 m³/day, with an actual discharge volume of 516.01 m³/day, indicating operational headroom. Treated effluent is discharged into local watercourses that ultimately drain into the Vistula River basin and then to the Baltic Sea. The plant plays a role in protecting local streams and the broader Vistula catchment from nutrient pollution, supporting aquatic ecosystem health in the region.
Environmental context
The plant discharges into small streams within the Vistula River basin, which flows northward through Poland to the Baltic Sea. The local watershed supports diverse aquatic life and is part of a region where agricultural and urban runoff can contribute to nutrient loading. The secondary treatment helps reduce organic matter and suspended solids, mitigating eutrophication risks in downstream water bodies.
Frequently asked questions
Rzezusnia WWTP is located in Ostrężnica, within the gmina Krzeszowice, powiat krakowski, województwo małopolskie, Poland.
The plant serves a population equivalent of 3,619, classifying it as a small agglomeration under EU regulations.
The plant discharges treated effluent into local streams that are part of the Vistula River basin, which ultimately flows to the Baltic Sea.
Rzezusnia provides secondary treatment, which is the minimum required by the EU Urban Waste Water Treatment Directive for inland discharges from agglomerations of this size.
The plant operates under Polish regulations transposing the EU Urban Waste Water Treatment Directive. For small agglomerations like this, secondary treatment is standard, with permits issued by regional environmental authorities.
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