Falecin Stary Wastewater Treatment Plant, Folwarki, Poland

Falecin Stary is a wastewater treatment plant located in Folwarki, within the świętokrzyskie region of Poland. It serves a population of 2,301 and operates under secondary treatment standards, which is the baseline requirement for municipal wastewater treatment in the European Union under the Urban Waste Water Treatment Directive (91/271/EEC). The plant has a design capacity of 9,006 m³/day and discharges an average volume of 328.09 m³/day. As a secondary treatment facility, Falecin Stary provides biological treatment to reduce organic matter and suspended solids. For agglomerations of this size (2,301 population equivalent), the EU directive mandates secondary treatment as a minimum, with no requirement for tertiary nutrient removal unless the receiving waters are designated as sensitive areas. The plant's capacity utilization is low, indicating ample reserve for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Vistula River basin, which flows into the Baltic Sea. The plant plays a role in protecting the region's surface water quality, supporting aquatic life and downstream ecosystems. Its inland location reduces direct marine impact, but its discharge contributes to the overall nutrient load in the Baltic Sea catchment.

The plant's discharge enters local streams that are part of the Vistula River basin, one of Poland's major river systems. The Vistula flows northward into the Baltic Sea, a semi-enclosed sea sensitive to eutrophication from nutrient pollution. The region's agricultural land use may contribute diffuse nutrient loads, making the plant's secondary treatment important for controlling organic pollution. The surrounding area supports diverse freshwater habitats and migratory fish species.