Aigen Schlogl Wastewater Treatment Plant: Serving Aigen-Schlägl, Oberösterreich

The Aigen Schlogl wastewater treatment plant is located in Aigen-Schlögl, a municipality in the Bezirk Rohrbach district of Oberösterreich, Austria. The plant serves a population of approximately 6,172 people, classifying it as a small agglomeration under EU regulations. As a plant of this scale in Austria, it is expected to provide secondary treatment in accordance with the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets minimum standards for wastewater treatment based on population size and receiving water sensitivity. The plant's treatment processes and capacity are designed to meet these regulatory requirements. The treated effluent from the plant is discharged into local watercourses that ultimately drain into the Danube River basin, which flows into the Black Sea. The plant plays a key role in protecting the water quality of these downstream environments, supporting aquatic life and ecosystem health.

The plant discharges into local streams that feed into the Danube River basin, a major European watershed. The Danube flows through multiple countries before reaching the Black Sea, making water quality management critical for transboundary ecological health. The region supports diverse aquatic habitats and is important for migratory fish species.