Oczyszczalnia sciekow w Olsztynie - Częstochowa Wastewater Treatment Plant | Poland

Oczyszczalnia sciekow w Olsztynie is a municipal wastewater treatment plant located in the Błeszno district of Częstochowa, in the Silesian Voivodeship of Poland. The plant serves a population equivalent of approximately 4,135, classifying it as a small agglomeration under Polish and EU regulations. The facility provides secondary treatment, which is the minimum standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for discharges into freshwater and estuaries. With a designed capacity of 6,000 m³/day and a current discharge volume of about 590 m³/day, the plant operates well within its capacity, ensuring effective treatment of incoming wastewater. The treated effluent is discharged into a local watercourse that ultimately drains into the Warta River basin, part of the Oder River system flowing into the Baltic Sea. The plant plays a key role in protecting the region's water quality, supporting aquatic life in the downstream rivers and contributing to the ecological health of the Baltic Sea catchment.

The plant discharges into a tributary of the Warta River, which flows through central Poland and joins the Oder River before reaching the Baltic Sea. This watershed supports diverse freshwater habitats and is important for migratory fish species. The secondary treatment provided helps reduce nutrient loads, mitigating eutrophication risks in the Baltic Sea.