Oerlinghausen Nord Wastewater Treatment Plant, Oerlinghausen, Germany

Oerlinghausen Nord is a wastewater treatment plant located in Oerlinghausen, a town in the Lippe district of Nordrhein-Westfalen, Germany. The plant serves a population of about 5,442, placing it in the small agglomeration category under EU regulations. As a German facility, Oerlinghausen Nord operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for agglomerations of this size. For small communities, secondary treatment is typically mandated, with possible additional nutrient removal if discharging into sensitive areas. The plant's treated effluent is discharged into local watercourses that flow into the Werre River, a tributary of the Weser River. The Weser ultimately drains into the North Sea. The plant plays a key role in protecting the local aquatic environment and downstream ecosystems.

The plant discharges into the Werre River basin, which flows into the Weser River and eventually the North Sea. The Weser estuary supports diverse aquatic life and is an important migratory corridor for fish species. The region's water quality is managed under the EU Water Framework Directive, aiming for good ecological status.