OSM Garwolin Wastewater Treatment Plant, Rębków, Mazowieckie Voivodeship, Poland

OSM Garwolin is a wastewater treatment plant located in Rębków, within the Garwolin district of the Mazowieckie Voivodeship in Poland. The plant serves a population of approximately 15,877, classifying it as a medium-sized agglomeration under European Union regulations. As a Polish facility, OSM Garwolin operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations with a population equivalent between 10,000 and 150,000. The plant's treatment processes are designed to meet these standards, ensuring compliance with national and EU environmental regulations. The treated effluent from OSM Garwolin is discharged into the local watershed, which ultimately drains into the Vistula River basin. The Vistula flows northward through Poland and empties 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.

OSM Garwolin discharges into the local tributaries of the Vistula River, Poland's longest river, which flows into the Baltic Sea. The watershed supports diverse aquatic ecosystems, including fish spawning grounds and migratory bird habitats. The plant's treatment helps reduce nutrient loading, which is critical for preventing eutrophication in the Baltic Sea, a sensitive marine environment.