Obere Kyll GKA Lissendorf: Wastewater Treatment Plant in Lissendorf, Rhineland-Palatinate

Obere Kyll GKA Lissendorf is a municipal wastewater treatment plant located in Lissendorf, a municipality in the Vulkaneifel district of Rhineland-Palatinate, Germany. The plant serves a population of around 11,000, classifying it as a medium agglomeration under EU regulations. As a German facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent between 2,000 and 15,000. The directive also mandates more stringent treatment if the receiving water body is designated as a sensitive area. The plant's treatment process and capacity are designed to meet these regulatory standards. The treated effluent is discharged into the local watershed, which drains into the Kyll River, a tributary of the Moselle. The Moselle flows into the Rhine, eventually reaching the North Sea. The plant plays a key role in protecting the water quality of the Kyll River and downstream ecosystems, supporting aquatic life and recreational uses.

The plant discharges into the Kyll River, a tributary of the Moselle, which flows into the Rhine and ultimately the North Sea. The Kyll River supports diverse aquatic life and is an important corridor for migratory fish. The region's volcanic soils and forested landscape contribute to the river's ecological sensitivity, requiring effective nutrient removal to prevent eutrophication downstream.