Lamerdingen Wastewater Treatment Plant, Bavaria, Germany

The Lamerdingen wastewater treatment plant is located in the municipality of Lamerdingen in the Bavarian district of Ostallgäu, Germany. It serves a population of approximately 2,683 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant operates with secondary treatment, which is the standard requirement for freshwater discharges from settlements of this size. As a German facility, the plant is subject to the national wastewater ordinance (Abwasserverordnung) and the Water Resources Act (Wasserhaushaltsgesetz), which implement the EU directive. The designed capacity of 2,800 m³/day indicates the plant's ability to handle peak flows, while the current discharge volume of 399.86 m³/day suggests operational headroom. Secondary treatment typically involves biological oxidation and sedimentation. The plant discharges treated effluent into local watercourses that ultimately drain into the Danube River basin via the Wertach or Lech rivers. The region is part of the Alpine foothills, with sensitive aquatic ecosystems that benefit from nutrient removal. The plant's inland location reduces direct marine impact, but its discharge contributes to the overall water quality of the Danube catchment.

The plant's treated effluent flows into small streams in the Wertach-Lech watershed, which feeds the Danube River. The Danube eventually reaches the Black Sea, making this plant part of a transboundary basin. The region supports diverse aquatic life, including fish species like grayling and brown trout, and the plant's secondary treatment helps protect downstream water quality in this ecologically sensitive area.