Illerwinkel Vg Wastewater Treatment Plant, Neuwelt, Bavaria

Illerwinkel Vg is a wastewater treatment plant located in Neuwelt, part of the Illerwinkel administrative community in the Bavarian district of Unterallgäu, Germany. The facility serves a population of approximately 6,850 people, classifying it as a small to medium agglomeration under European Union regulations. As a German plant, Illerwinkel Vg operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates appropriate treatment before discharge into freshwater bodies to protect water quality and ecosystems. The plant's treated effluent is discharged into the local watershed, which drains into the Iller River, a tributary of the Danube. The Danube ultimately flows into the Black Sea, making the plant's operations important for downstream water quality across multiple countries. The region's aquatic ecosystems benefit from effective nutrient removal and pollution control.

The plant discharges into the Iller River basin, which feeds into the Danube River system. The Danube is a major European waterway that supports diverse aquatic life and provides drinking water for millions. Effective wastewater treatment here helps reduce nutrient loading and protects the ecological health of the Danube and the Black Sea.