Hochstadt adAisch Wastewater Treatment Plant, Höchstadt an der Aisch, Bavaria

The Hochstadt adAisch wastewater treatment plant is located in Höchstadt an der Aisch, a town in the Bavarian district of Erlangen-Höchstadt, Germany. The facility serves a population of approximately 20,921 residents, classifying it as a medium-sized agglomeration under EU standards. As a German plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The plant's treatment processes and capacity are designed to meet these regulatory standards, ensuring compliance with national and European water quality requirements. The treated effluent is discharged into the Aisch River, a tributary of the Regnitz, which flows into the Main and ultimately the Rhine River. The plant plays a key role in protecting the local watershed and downstream aquatic ecosystems, including the Rhine basin, by reducing nutrient and pollutant loads.

The plant discharges into the Aisch River, part of the Regnitz-Main-Rhine river system. This watershed supports diverse aquatic life and is an important ecological corridor in Bavaria. The plant's treatment helps maintain water quality in the Rhine basin, which flows through multiple countries to the North Sea.