Haag_Ob Wastewater Treatment Plant, Haag in Oberbayern, Bavaria

Haag_Ob is a wastewater treatment plant located in Haag in Oberbayern, Bavaria, Germany. It serves a population equivalent of 32,482, classifying it as a medium-sized agglomeration under EU regulations. The plant is situated inland, approximately 50 km from the coast, and its treated effluent discharges into local watercourses that ultimately drain into the Danube River basin. As a German facility, Haag_Ob operates under 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 treatment processes are designed to meet these standards, ensuring compliance with national and European water quality regulations. The facility is part of Germany's extensive wastewater infrastructure, which is known for high treatment standards and environmental protection. The plant's receiving water body is part of the Inn River catchment, a tributary of the Danube. The Danube River flows into the Black Sea, making this plant's operations relevant to the ecological health of a major European river system. The surrounding region is characterized by agricultural land and small settlements, and the plant plays a key role in protecting local water quality and downstream ecosystems.

Haag_Ob discharges treated wastewater into local streams that flow into the Inn River, a major tributary of the Danube. The Danube ultimately reaches the Black Sea, making this plant part of a large transboundary river basin. The local watershed supports diverse aquatic life, including fish species such as barbel and chub, and the plant's treatment helps maintain water quality for downstream communities and ecosystems.