Moczydłów Wastewater Treatment Plant, Moczydłów | Poland

The Moczydłów wastewater treatment plant is located in the town of Moczydłów, within the gmina of Góra Kalwaria in the powiat piaseczyński of Mazowieckie province, Poland. The facility serves a population of around 44,532, classifying it as a medium-sized agglomeration under EU classification. As a Polish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more stringent treatment if the receiving waters are designated as sensitive areas. The plant's treatment processes and capacity are aligned with these regulatory requirements to ensure compliance. The treated effluent is discharged into local watercourses that eventually drain into the Vistula River basin, which flows northward into the Baltic Sea. The plant plays a key role in protecting the region's water quality and supporting the ecological health of downstream aquatic environments.

The plant discharges into local streams that are part of the Vistula River basin, one of Poland's major river systems. The Vistula flows into the Baltic Sea, a semi-enclosed sea with sensitive ecosystems. The plant's operations help reduce nutrient loads, particularly nitrogen and phosphorus, which can cause eutrophication in the Baltic. Protecting this watershed is critical for maintaining biodiversity and supporting fisheries in the region.