Rahmedetal Wastewater Treatment Plant, Altena, Nordrhein-Westfalen

Rahmedetal is a wastewater treatment plant located in Altena, in the Märkischer Kreis district of Nordrhein-Westfalen, Germany. The plant serves a population of around 30,000, classifying it as a medium-sized agglomeration under German and EU regulations. As a German plant, Rahmedetal 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 advanced treatment if the receiving waters are designated as sensitive areas. It is expected to meet the national standards set by the German Water Resources Act (Wasserhaushaltsgesetz). The treated effluent from Rahmedetal is discharged into the local water system, which ultimately flows into the Rhine River basin. The Rhine is one of Europe's major rivers, supporting diverse aquatic life and providing drinking water for millions. The plant plays a key role in protecting the water quality of this important catchment area.

Rahmedetal discharges into the Rahmede stream, a tributary of the Lenne River, which flows into the Ruhr River and eventually the Rhine. The Rhine basin is a densely populated and industrialized region, making wastewater treatment critical for maintaining water quality. The downstream environment supports diverse fish species and is used for recreation and drinking water abstraction. The plant's location inland, away from the coast, reduces direct marine impact but its discharge affects the sensitive riverine ecosystem.