Rosendahl Osterwick Wastewater Treatment Plant, Nordrhein-Westfalen, Germany

Rosendahl Osterwick is a wastewater treatment plant located in the town of Osterwick, part of the municipality of Rosendahl in the district of Coesfeld, Nordrhein-Westfalen, Germany. The plant serves a population of approximately 16,074 people, placing it in the medium agglomeration category under EU classification. As a German facility, the plant 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 discharging into inland waters. The regulatory framework ensures appropriate treatment standards are met. The treated effluent from the plant is discharged into local watercourses that ultimately drain into the Rhine River basin, which flows through Germany and the Netherlands into the North Sea. The plant plays a key role in protecting the water quality of the region's streams and rivers, supporting aquatic life and downstream ecosystems.

The plant discharges into the local watershed of the Vechte River system, which flows northward through Nordrhein-Westfalen and into the Netherlands, eventually reaching the IJsselmeer and the North Sea. The region is characterized by agricultural land use and small watercourses that support diverse aquatic life. The plant's treatment helps maintain water quality in these sensitive lowland streams, which are important for fish spawning and migratory bird habitats.