Ebsdorfergrund _ Hachborn Wastewater Treatment Plant, Hessen, Germany

Ebsdorfergrund _ Hachborn is a wastewater treatment plant located in Hachborn, part of the Ebsdorfergrund municipality in the Landkreis Marburg-Biedenkopf, Hessen, Germany. The plant serves a population of around 8,068 people, placing it in the small to medium agglomeration category under European Union regulations. As a German facility, the plant 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 appropriate treatment before discharge into inland waters, ensuring compliance with national water quality standards set by the German Water Resources Act (Wasserhaushaltsgesetz). The plant's treated effluent is discharged into local watercourses that eventually drain into the Lahn River, a tributary of the Rhine. The Rhine basin is a major European watershed supporting diverse aquatic ecosystems and providing drinking water for millions. The plant plays a key role in protecting the local Zwester Ohm stream and downstream water quality.

The plant discharges into the Zwester Ohm stream, which flows into the Ohm River, a tributary of the Lahn River. The Lahn joins the Rhine near Koblenz, contributing to the Rhine basin, one of Europe's most important river systems. The local watershed supports aquatic life and is part of a region with mixed agricultural and forested land use, requiring careful nutrient management to prevent eutrophication in downstream waters.