Ruhstorf an der Rott Wastewater Treatment Plant, Eholfing, Bavaria

Ruhstorf an der Rott wastewater treatment plant is located in Eholfing, a district of Ruhstorf an der Rott in the Landkreis Passau, Bavaria, Germany. The plant serves a population equivalent of 11,958, classifying it as a medium-sized agglomeration under European Union regulations. As a German facility, the plant is subject to 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. Compliance with national and EU standards ensures appropriate treatment for the local population. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Danube River basin. The Danube is a major European waterway that flows into the Black Sea, supporting diverse aquatic ecosystems along its course. The plant's operations contribute to protecting water quality in this important river system.

The plant's treated effluent enters the Rott River, a tributary of the Inn River, which flows into the Danube near Passau. The Danube is a vital ecological corridor for fish migration and supports a wide range of aquatic species. The downstream environment includes the Danube Delta, a large wetland area that provides critical habitat for birds and other wildlife. Maintaining high water quality in this basin is essential for both ecological health and human uses such as drinking water and recreation.