Sterkowiec Wastewater Treatment Plant, Wokowice, Poland - Secondary Treatment Facility

The Sterkowiec wastewater treatment plant is located in Wokowice, within the Brzesko district of the Małopolskie Voivodeship in southern Poland. It serves a population of approximately 1,967, classifying it as a small agglomeration under Polish and EU regulations. The plant is situated near the A4 motorway, reflecting its role in managing wastewater from this rural and peri-urban area. 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 4,000 m³/day and currently treats an average daily flow of 280.46 m³/day, indicating significant spare capacity. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into a local watercourse, likely a tributary of the Uszwica River, which flows into the Vistula River and eventually reaches the Baltic Sea. The plant plays a key role in protecting the local watershed from pollution, supporting aquatic life and downstream water quality in the Vistula basin.

The Sterkowiec plant discharges into a small watercourse that drains into the Uszwica River, a tributary of the Vistula. The Vistula is Poland's largest river, flowing into the Baltic Sea via the Gdańsk Bay. The local watershed supports diverse aquatic habitats and is part of a region with agricultural and natural landscapes. The plant's secondary treatment helps reduce nutrient and organic loads, mitigating eutrophication risks in downstream waters.