ARA GAV Eggenburg Roschitz 1236 HO Wastewater Treatment Plant, Röschitz, Austria

ARA GAV Eggenburg Roschitz 1236 HO is a wastewater treatment plant located in the Katastralgemeinde Röschitz, in the municipality of Röschitz, Bezirk Horn, Niederösterreich, Austria. The plant serves a population of approximately 16,438, classifying it as a medium-sized agglomeration under Austrian and EU regulations. As an Austrian plant, it 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 advanced treatment if the receiving waters are sensitive areas. It is expected to meet these regulatory standards. The plant's treated effluent is discharged into local watercourses that ultimately drain into the Danube River basin, which flows into the Black Sea. This downstream connection highlights the plant's role in protecting the ecological health of the Danube and its tributaries, which support diverse aquatic life and are important for regional biodiversity.

The plant discharges into local streams that are part of the Danube River basin. The Danube is Europe's second-longest river, flowing through multiple countries before reaching the Black Sea. The watershed supports diverse aquatic ecosystems and is a critical migratory corridor for fish species. The plant's operations help maintain water quality in this ecologically significant basin.