Siemien Wastewater Treatment Plant, Siemień, Poland

The Siemien wastewater treatment plant is located in Siemień, a village in the Lublin Voivodeship of eastern Poland. This facility serves a small population of 513 residents, reflecting its role in a rural community. The plant is part of Poland's municipal wastewater infrastructure, which is regulated under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant operates with secondary treatment, which is the standard required by the EU directive for agglomerations of this size. It has a designed capacity of 900 m³/day and currently discharges 73.15 m³/day of treated wastewater. The treatment process ensures that effluent meets quality standards before release into the local environment. The treated wastewater from Siemien is discharged into the local watershed, which ultimately drains into the Tyśmienica River, a tributary of the Wieprz River. The Wieprz flows into the Vistula River, which reaches the Baltic Sea. The plant helps protect the ecological health of these water bodies by reducing pollutant loads from the community.

The Siemien plant discharges into the Tyśmienica River basin, which flows into the Wieprz River and then the Vistula, eventually reaching the Baltic Sea. This watershed supports diverse aquatic life and is part of an ecologically sensitive region in eastern Poland. The plant's secondary treatment helps maintain water quality in these rivers, which are important for local biodiversity and downstream ecosystems.