Machland Ost Saxen Wastewater Treatment Plant, Hofkirchen, Austria

Machland Ost Saxen is a municipal wastewater treatment plant located in Saxendorf, Hofkirchen, within the Bezirk Perg district of Oberösterreich, Austria. The plant serves a population of approximately 7,747 people, classifying it as a small to medium agglomeration under Austrian and EU regulations. As a plant of this scale in Austria, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations above 2,000 population equivalent. The plant's treatment process and capacity are designed to meet these standards, ensuring compliance with national and European water quality objectives. The treated effluent is discharged into local water bodies that ultimately drain into the Danube River basin, a major European watershed. The Danube flows through multiple countries before reaching the Black Sea, making the plant's operations important for downstream water quality and ecosystem health in the region.

The plant discharges into the Danube River basin, which flows through Austria and several other countries before reaching the Black Sea. The Danube supports diverse aquatic life and is a critical migratory corridor for fish species. The surrounding region includes agricultural areas and the Donau-Auen National Park downstream, which relies on good water quality for its floodplain ecosystems.