Overview
OS Promlecz is a secondary wastewater treatment plant in Bojszowy, Silesia, Poland, serving approximately 6,200 people. It discharges 884.45 m³/day of treated effluent.
OS Promlecz is a municipal wastewater treatment plant located in Bojszowy, within the Silesian Voivodeship of southern Poland. The facility serves a population of around 6,200 residents, placing it in the small-to-medium agglomeration category under Polish and EU regulations. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for inland discharges from agglomerations of this size. Its designed capacity is 7,058 m³/day, with an average daily discharge volume of 884.45 m³, indicating ample reserve capacity. The treated effluent is discharged into local waterways that ultimately drain into the Vistula River basin, which flows north to the Baltic Sea. The plant plays a key role in protecting the region's surface water quality and supporting the ecological health of the downstream aquatic environment.
Environmental context
The plant discharges into the Vistula River catchment, which flows through southern and central Poland before reaching the Baltic Sea. This watershed supports diverse aquatic life and provides drinking water for millions. Secondary treatment helps reduce nutrient loads and organic pollution, mitigating eutrophication risks in the Baltic Sea.
Frequently asked questions
OS Promlecz is located in Bojszowy, a town in the Silesian Voivodeship of southern Poland, within the Górnośląsko-Zagłębiowska Metropolia.
The plant serves approximately 6,200 residents, classifying it as a small-to-medium agglomeration under EU wastewater regulations.
The plant discharges treated effluent into local waterways that are part of the Vistula River basin, which ultimately flows into the Baltic Sea.
OS Promlecz provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive for inland discharges from agglomerations of this size.
As a Polish plant serving over 2,000 people, OS Promlecz operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for inland discharges and more advanced treatment in sensitive areas.
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