THALMAESSING OT STEINDL Wastewater Treatment Plant, Thalmässing, Germany

THALMAESSING OT STEINDL is a former wastewater treatment plant located in Thalmässing, a municipality in the Landkreis Roth district of Bayern, Germany. The plant served a small population of 108 people and was designed with a capacity of 70 cubic meters per day. It is now closed and no longer operational. The plant provided secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Although the plant is closed, the directive typically mandates secondary treatment for all discharges from agglomerations with a population equivalent above 2,000, with more stringent requirements for sensitive areas. The treated effluent from the plant would have discharged into local watercourses within the Danube basin, as Thalmässing lies in the catchment of the Altmühl River, a tributary of the Danube. The Danube ultimately flows into the Black Sea, supporting diverse aquatic ecosystems along its course.

The plant is located inland in the Altmühl River catchment, part of the Danube basin. The Altmühl flows into the Danube, which drains into the Black Sea. The region supports diverse freshwater habitats, including wetlands and riparian zones that are important for migratory birds and fish species such as the Danube salmon. The closed plant no longer poses a discharge risk to these waters.