Kaarst Nordkanal Wastewater Treatment Plant, Kaarst, Nordrhein-Westfalen

Kaarst Nordkanal is a municipal wastewater treatment plant located in Kaarst, a city in the Rhein-Kreis Neuss district of Nordrhein-Westfalen, Germany. The plant serves a population of approximately 65,817, classifying it as a medium-to-large agglomeration under EU regulations. As a German facility, Kaarst Nordkanal is subject to 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 discharge is regulated under the German Water Resources Act (WHG) and state-level permits issued by the Bezirksregierung Düsseldorf. The treated effluent from Kaarst Nordkanal is discharged into the Nordkanal, a canal that connects to the Erft River, which flows into the Rhine River. The Rhine ultimately drains into the North Sea. The plant plays a key role in protecting the local water quality and the downstream aquatic ecosystem of the Rhine basin.

Kaarst Nordkanal discharges into the Nordkanal, a canal that feeds into the Erft River, a tributary of the Rhine River. The Rhine flows through Germany and the Netherlands before reaching the North Sea. The plant's operations help maintain water quality in the Erft and Rhine, which support diverse aquatic life and are important for regional biodiversity. The area is part of the Rhine basin, a major European watershed.