ARA StMichael iLg, Sankt Michael im Lungau

Overview

ARA StMichael iLg is a wastewater treatment plant serving Sankt Michael im Lungau, Austria. It treats wastewater for approximately 12,966 people in the Salzburg region.

ARA StMichael iLg is a municipal wastewater treatment plant located in Sankt Michael im Lungau, a town in the Bezirk Tamsweg district of Salzburg, Austria. The plant serves a population of around 12,966 people, placing it in the medium agglomeration category under Austrian and EU regulations. As a plant of this scale in Austria, it is expected to comply with the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations between 10,000 and 150,000 population equivalents. It operates within the framework of Austrian water law, which implements EU standards. The plant discharges treated wastewater into the local watershed, which is part of the Mur River basin. The Mur River flows through the Lungau region and eventually drains into the Drava River, a tributary of the Danube, which ultimately reaches the Black Sea. The plant plays a key role in protecting the water quality of this alpine river system.

Environmental context

The plant's treated effluent enters the local tributaries of the Mur River, which flows through the Lungau region in the Austrian Alps. The Mur River is a significant watercourse in the Danube basin, supporting diverse aquatic life and providing habitat for species such as the European grayling and brown trout. Downstream, the river passes through urban and agricultural areas before joining the Drava River, which flows into the Danube and eventually the Black Sea. The plant's operations help maintain water quality in this ecologically sensitive alpine watershed.

Frequently asked questions

ARA StMichael iLg is located in Sankt Michael im Lungau, a town in the Bezirk Tamsweg district of Salzburg, Austria. The plant's address is Mühlweg, Litzldorf, St. Michael im Lungau.

The plant serves approximately 12,966 people, classifying it as a medium-sized agglomeration under EU wastewater treatment directives.

The plant discharges treated wastewater into local tributaries of the Mur River, which flows through the Lungau region and eventually into the Danube River basin.

As an Austrian plant, ARA StMichael iLg operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of its size. Compliance is enforced by Austrian water authorities.

For agglomerations of this scale, the EU Urban Waste Water Treatment Directive requires at least secondary treatment (biological treatment). In sensitive areas, tertiary treatment may be required to reduce nutrients like nitrogen and phosphorus.