Oczyszczalnia Sciekow WPK Sp zoo Reszel - Secondary Wastewater Treatment in Reszel, Poland

Oczyszczalnia Sciekow WPK Sp zoo Reszel is a municipal wastewater treatment plant located in Reszel, within the warmińsko-mazurskie voivodeship of Poland. The plant serves a population of approximately 4,101 residents, classifying it as a small agglomeration under Polish and EU regulations. The facility provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for inland freshwater discharges from agglomerations of this size. The plant has a designed capacity of 8,400 m³/day and currently treats an average daily flow of 584.74 m³/day, indicating significant reserve capacity. The treated effluent is discharged into a local watercourse that ultimately drains into the Baltic Sea via the Pregolya River basin. The plant plays a key role in protecting the region's surface waters from nutrient pollution, supporting the ecological health of downstream aquatic habitats.

The plant discharges into a local stream that flows into the Pregolya River, which eventually reaches the Baltic Sea. The Baltic Sea is a brackish water body sensitive to eutrophication from nitrogen and phosphorus inputs. The secondary treatment provided by the plant helps reduce organic load and nutrients, contributing to the protection of downstream aquatic ecosystems and the coastal marine environment.