Rauschenberg _ Ernsthausen Wastewater Treatment Plant, Ernsthausen, Hessen, Germany

Rauschenberg _ Ernsthausen wastewater treatment plant is located in the town of Ernsthausen, part of the municipality of Rauschenberg in the Landkreis Marburg-Biedenkopf district of Hessen, Germany. The plant serves a population of approximately 2,600 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC). As a German wastewater treatment facility, the plant is subject to the EU Urban Waste Water Treatment Directive, which requires secondary treatment for all discharges from agglomerations with a population equivalent above 2,000. For smaller agglomerations like this one, appropriate treatment must be provided to meet local water quality objectives. The plant's design and operation are regulated by the German Water Resources Act (Wasserhaushaltsgesetz) and relevant state-level regulations in Hessen. The plant discharges treated wastewater into local watercourses that drain into the Wohra River, a tributary of the Ohm River, which eventually flows into the Lahn River and then the Rhine River. The Rhine basin is a major European watershed supporting diverse aquatic life and providing drinking water for millions. The plant's location in a rural, agricultural area means its effluent quality is important for protecting local streams and groundwater resources.

The plant's treated effluent enters local streams that flow into the Wohra River, a tributary of the Ohm River, which joins the Lahn River and ultimately the Rhine River. The Rhine basin is a large, ecologically significant watershed that supports diverse fish species, including salmonids, and provides habitat for migratory birds. The plant's discharge must meet German water quality standards to protect the receiving waters from nutrient enrichment and other pollutants, especially given the agricultural land use in the region.