Perg Wastewater Treatment Plant, Oberösterreich | EU UWWTD Compliance

The Perg wastewater treatment plant is located in the town of Perg, in the state of Oberösterreich, Austria. It serves a population of approximately 16,989 people, classifying it as a medium agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant is situated inland, away from coastal areas, and its treated effluent is discharged into local watercourses that ultimately drain into the Danube River basin. As an Austrian facility serving a population between 10,000 and 100,000, the plant is required by the EU UWWTD to provide at least secondary treatment. Austria implements this directive through national legislation, ensuring that wastewater is treated to remove organic matter and suspended solids before discharge. The plant's operational details, including specific treatment processes and capacity, are managed by the local municipal authority. The treated wastewater from Perg is discharged into the local hydrological network, which flows into the Danube River via the Naarn River. The Danube is a major European waterway that supports diverse aquatic ecosystems and provides drinking water for millions. The plant plays a key role in protecting the water quality of the Danube basin by reducing nutrient and pollutant loads from the urban area.

The Perg wastewater treatment plant discharges into the Naarn River, a tributary of the Danube River. The Danube flows through Central and Eastern Europe before emptying into the Black Sea. The local watershed supports diverse aquatic life, including fish species such as carp and pike, and the riverine ecosystem is sensitive to nutrient pollution. The plant's treatment helps maintain water quality in the Danube basin, which is important for downstream communities and habitats.