Sadkowa Gora Wastewater Treatment Plant, Sadkowa Góra, Poland

The Sadkowa Gora wastewater treatment plant is located in the village of Sadkowa Góra, within gmina Borowa, powiat mielecki, in the Podkarpackie Voivodeship of southeastern Poland. This facility serves a small population of 844 residents, reflecting its role in a rural community. The plant is situated near the Brnia River, a tributary of the Wisłoka River, which ultimately drains into the Vistula River and the Baltic Sea. The plant provides secondary treatment, which is the standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent (PE) of less than 10,000. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's designed capacity is 2500 m³/day, and it currently discharges an average volume of 120.34 m³/day, indicating ample capacity for future growth. The treated effluent is discharged into the Brnia River, a local watercourse that flows through the region. The Brnia River joins the Wisłoka River, which then flows into the Vistula River, the longest river in Poland. The Vistula River discharges into the Baltic Sea via the Gdańsk Bay. The plant's operations help protect the local aquatic ecosystem and downstream water quality, supporting biodiversity in the Vistula basin.

The plant discharges into the Brnia River, a small tributary of the Wisłoka River, which is part of the Vistula River basin. The Vistula River flows northward through Poland and empties into the Baltic Sea. The downstream environment includes diverse aquatic habitats that support fish species such as salmon and trout, as well as migratory birds. The plant's secondary treatment helps reduce nutrient loading and organic pollution, contributing to the ecological health of the Vistula basin and the Baltic Sea.