Lalling Wastewater Treatment Plant, Kaußing, Bavaria | Germany

Lalling wastewater treatment plant is located in Kaußing, a district of Lalling in the Bavarian region of Germany. The plant serves a population of approximately 2,415 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant provides secondary treatment, which is the minimum standard required by the EU UWWTD for freshwater discharges from agglomerations of this size. With a designed capacity of 2,600 m³/day and an average daily flow of 611.18 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Danube River basin. The plant plays a key role in protecting the water quality of the region's streams and the downstream Danube ecosystem, supporting aquatic life and recreational uses.

The plant discharges into small streams that flow into the Danube River basin, which eventually reaches the Black Sea. The Danube is a major European waterway supporting diverse aquatic species and providing drinking water for millions. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream habitats from eutrophication.