2550232001 KA Holzminden Wastewater Treatment Plant, Stahle, Germany

KA Holzminden, identified by plant number 2550232001, is a municipal wastewater treatment facility located in Stahle, a district of Höxter in Nordrhein-Westfalen, Germany. The plant serves a population of approximately 71,401 people, classifying it as a medium-to-large agglomeration under EU regulations. Its location in the Weser River basin places it within a region characterized by mixed agricultural and urban land use. As a German plant of this scale, KA Holzminden operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations above 2,000 population equivalents and tertiary treatment in sensitive areas. The regulatory framework ensures compliance with national standards set by the German Water Resources Act (WHG) and state-level regulations in Nordrhein-Westfalen. The treated effluent from KA Holzminden is discharged into the Weser River system, which flows northward through Lower Saxony and into the North Sea. The Weser basin supports diverse aquatic life and is an important ecological corridor. The plant's operation contributes to protecting downstream water quality in the Weser and its tributaries, which are used for recreation, fishing, and as a drinking water source.

KA Holzminden discharges into the Weser River, which flows through central Germany and empties into the North Sea near Bremerhaven. The Weser basin is a major hydrological feature supporting diverse freshwater ecosystems, including fish species such as salmon and eel. The plant's location in the upper Weser region means its effluent quality directly affects downstream habitats, including floodplain forests and wetlands that provide critical ecosystem services.