Siebenlehn Wastewater Treatment Plant, Großschirma, Saxony

The Siebenlehn wastewater treatment plant is located in the Steyermühle area of Breitenbach, part of the town of Großschirma in the Mittelsachsen district of Saxony, Germany. The facility serves a population of around 8,500 people, classifying it as a medium-sized agglomeration under European Union regulations. As a German wastewater treatment plant, Siebenlehn 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 designated as sensitive areas. The plant's specific treatment processes and capacity details are not publicly available in this dataset. The treated effluent from the plant is discharged into local watercourses that ultimately drain into the Elbe River basin. The Elbe flows northward through Germany before reaching the North Sea near Cuxhaven. The plant plays a role in protecting the water quality of the Elbe catchment, which supports diverse aquatic life and is an important ecological corridor in central Europe.

The Siebenlehn plant discharges into the local tributaries of the Freiberger Mulde river, which flows into the Mulde and then the Elbe River. The Elbe basin is a major European watershed, supporting diverse aquatic ecosystems and providing habitat for migratory fish species. The region's water quality is managed under the EU Water Framework Directive, which aims to achieve good ecological status for all water bodies.