4540192001 KA Haselunne Wastewater Treatment Plant, Haselünne, Niedersachsen

4540192001 KA Haselunne is a municipal wastewater treatment plant located in Haselünne, in the district of Emsland, Niedersachsen, Germany. The plant serves a population of approximately 31,873, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). As a German plant, it operates under the EU UWWTD (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant is also subject to Germany's national water management regulations, which implement the directive and may impose additional requirements for nutrient removal in sensitive areas. The treated effluent is discharged into local water bodies that eventually drain into the Ems River, which flows northward into the North Sea. The plant plays a key role in protecting the Ems basin's water quality, supporting aquatic life and downstream ecosystems.

The plant discharges into the Ems River basin, which flows through Niedersachsen into the North Sea. The Ems River supports diverse aquatic life and is an important migratory corridor for fish species. The downstream environment includes ecologically sensitive areas such as tidal wetlands and estuaries, which benefit from effective wastewater treatment to reduce nutrient and pollutant loads.