Extertal Almena Wastewater Treatment Plant, Almena, Nordrhein-Westfalen

Extertal Almena is a wastewater treatment plant located in the Almena district of Extertal, in the Lippe district of Nordrhein-Westfalen, Germany. The plant serves a population of approximately 17,500, classifying it as a medium-sized agglomeration under European Union regulations. As a German facility, Extertal Almena operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent (PE) between 2,000 and 15,000, and more stringent treatment for larger agglomerations discharging into sensitive areas. The plant's treatment processes are designed to meet these regulatory standards, ensuring compliance with national and EU water quality objectives. The treated effluent from Extertal Almena is discharged into local watercourses that ultimately drain into the Weser River basin. The Weser flows northward through Germany, passing through ecologically significant areas before reaching the North Sea. The plant plays a vital role in protecting the water quality of these downstream environments, supporting aquatic life and maintaining the ecological balance of the region.

Extertal Almena discharges into the local tributaries of the Weser River, which flows through the Weserbergland region and eventually into the North Sea. The Weser basin supports diverse aquatic habitats, including spawning grounds for migratory fish species. The plant's treatment helps maintain water quality in this ecologically sensitive river system, which is important for both biodiversity and downstream water users.