Schwandorf OT Wiefelsdorf Wastewater Treatment Plant, Bavaria, Germany

Schwandorf OT Wiefelsdorf is a former wastewater treatment plant located in the Haidanger area of Büchelkühn, Schwandorf, in the Bavarian district of Schwandorf, Germany. The plant served a small community of approximately 1,890 people and is now closed. As a secondary treatment facility, it provided biological treatment to reduce organic matter and suspended solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) between 2,000 and 10,000 are required to have secondary treatment. Although this plant served fewer than 2,000 people, it still met secondary treatment standards. The plant discharged treated wastewater into local water bodies that eventually drain into the Danube River basin. The Danube flows eastward through several countries before reaching the Black Sea. The plant's closure suggests that wastewater from the area is now handled by a larger regional facility, likely with improved treatment capabilities.

The plant's discharge contributed to the local watershed, which is part of the Danube River basin. The Danube is one of Europe's most significant rivers, supporting diverse aquatic life and providing water for millions of people. The treated effluent from this plant would have entered small streams or groundwater, eventually reaching the Danube and then the Black Sea. The region's ecology benefits from proper wastewater treatment, which helps maintain water quality and protect downstream habitats.