Tuntenhausen OT Ostermunchen Wastewater Treatment Plant, Ostermünchen, Bavaria

Tuntenhausen OT Ostermunchen is a municipal wastewater treatment plant located in the Ostermünchen district of Tuntenhausen, in the Landkreis Rosenheim, Bavaria, Germany. The plant serves a population of around 2,719 people and is part of the region's wastewater infrastructure. The plant provides secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,500 m³/day and an average discharge volume of 688.11 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local water bodies that ultimately drain into the Inn River, a major tributary of the Danube. The Danube then flows into the Black Sea, making the plant part of a large transboundary river basin. The surrounding area is characterized by agricultural land and small settlements, and the plant plays a key role in protecting local water quality.

The plant discharges into the local watershed, which feeds into the Inn River and subsequently the Danube River, eventually reaching the Black Sea. This region supports diverse aquatic life and is important for migratory fish species. The secondary treatment reduces organic pollutants and nutrients, helping to maintain the ecological health of downstream waters.