Zaklad Debe Wastewater Treatment Plant, Dębe, Mazowieckie, Poland

Zaklad Debe is a wastewater treatment plant located in Dębe, within the Legionowo County of Mazowieckie Voivodeship, Poland. The facility serves a population of around 34,445, classifying it as a medium-sized agglomeration under Polish and EU regulations. As a plant operating in Poland, which is a member of the European Union, Zaklad Debe is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment for agglomerations of this size, with tertiary treatment in sensitive areas. The plant's treatment processes are designed to meet these standards, ensuring compliance with national and EU water quality objectives. The treated effluent from Zaklad Debe is discharged into local water bodies that ultimately drain into the Vistula River basin. The Vistula flows northward through Poland into the Baltic Sea, making the plant's operations important for protecting downstream aquatic ecosystems and the marine environment of the Baltic Sea.

The plant discharges into the local watershed, which is part of the Vistula River basin. The Vistula is Poland's largest river, flowing into the Baltic Sea. The downstream environment supports diverse aquatic life and is ecologically sensitive, particularly in the Vistula delta and coastal areas. Proper treatment helps reduce nutrient loads that could contribute to eutrophication in the Baltic Sea.