Overview
Wiehl Weiershagen wastewater treatment plant serves approximately 12,500 people in Wiehl, Nordrhein-Westfalen, Germany. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scal
Wiehl Weiershagen is a municipal wastewater treatment plant located in the Weiershagen district of Wiehl, in the Oberbergischer Kreis of Nordrhein-Westfalen, Germany. The facility serves a population of approximately 12,543, placing it in the medium agglomeration category under European regulations. As a German plant, Wiehl Weiershagen operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations between 10,000 and 150,000 population equivalent. The plant's treatment processes are designed to meet these standards, ensuring compliance with national and European water quality requirements. The treated effluent is discharged into the local water system, which ultimately drains into the Agger River, a tributary of the Sieg, and then into the Rhine River. This connection to the Rhine basin highlights the plant's role in protecting downstream water quality in one of Europe's major river systems.
Environmental context
The plant discharges into the Agger River watershed, which flows into the Sieg and then the Rhine River. The Rhine is a major European waterway supporting diverse aquatic life and providing drinking water for millions. The plant's location in a hilly, forested region of the Bergisches Land means the receiving waters are sensitive to nutrient loading, making effective treatment essential for maintaining ecological balance.
Frequently asked questions
The plant is located at Weiershagener Straße 88 in the Weiershagen district of Wiehl, in the Oberbergischer Kreis of Nordrhein-Westfalen, Germany.
The plant serves approximately 12,543 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the local water system, which flows into the Agger River, a tributary of the Sieg, and ultimately into the Rhine River.
As a German facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 150,000 population equivalent are required to provide secondary treatment, which typically involves biological processes to remove organic matter and nutrients.
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