Haltern West Wastewater Treatment Plant, Haltern am See, Germany

Haltern West is a wastewater treatment plant located in Haltern am See, in the state of Nordrhein-Westfalen, Germany. It serves a population equivalent of approximately 42,760, classifying it as a medium-sized agglomeration under EU regulations. The plant is situated in the Berghaltern area, near the Hamm district. As a German facility, Haltern West is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. German plants typically adhere to strict national discharge limits under the Water Resources Act (WHG). The plant discharges treated wastewater into the local water system, which ultimately drains into the Lippe River and then the Rhine River. The Rhine basin is a major European waterway supporting diverse aquatic life and providing drinking water for millions. The plant plays a key role in protecting the Lippe and Rhine from nutrient and pollutant loads.

The treated effluent from Haltern West enters the local drainage network, which flows into the Lippe River, a tributary of the Rhine. The Rhine is one of Europe's most important rivers, supporting a wide range of fish species and serving as a migratory corridor for salmon and eel. The Lippe itself is ecologically sensitive, with floodplain habitats that host rare bird and plant species. Effective wastewater treatment is crucial to prevent eutrophication and maintain water quality in this densely populated and industrialized region.