Altenmarkt_Alz Wastewater Treatment Plant, Altenmarkt an der Alz, Bavaria

The Altenmarkt_Alz wastewater treatment plant is located in Altenmarkt an der Alz, a municipality in the Traunstein district of Bavaria, Germany. The plant serves a population of around 12,666 people, classifying it as a medium-sized agglomeration under EU 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 more stringent treatment if the receiving waters are designated as sensitive areas. It complies with national and EU standards. The treated effluent is discharged into the Alz River, a tributary of the Inn River, which flows into the Danube and ultimately the Black Sea. The Alz River supports diverse aquatic life and is part of the Danube basin, an important ecological corridor in Central Europe.

The plant discharges into the Alz River, which flows into the Inn River, a major tributary of the Danube. The Danube River basin is one of Europe's most significant water systems, supporting diverse ecosystems and providing habitat for numerous fish species. The Alz River itself is a small river in the Alpine foothills, with sensitive aquatic habitats that benefit from proper wastewater treatment to maintain water quality.