Eggstatt Wastewater Treatment Plant, Eggstätt, Bavaria, Germany

The Eggstatt wastewater treatment plant is located in Eggstätt, a municipality in the Landkreis Rosenheim district of Bavaria, Germany. The plant serves a population of approximately 3,788, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). It is situated in a rural area near the Chiemsee lake region. The plant provides advanced treatment, which goes beyond the secondary treatment standard required by the EU UWWTD for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive water bodies. The plant has a designed capacity of 6,500 cubic meters per day and currently discharges about 445 cubic meters per day, indicating ample reserve capacity. The treated effluent is discharged into local watercourses that eventually drain into the Chiemsee, one of Germany's largest lakes, and then via the Alz river to the Inn and ultimately the Danube. The Chiemsee region is ecologically sensitive, supporting diverse aquatic life and serving as a recreational area. The plant's advanced treatment helps protect this valuable ecosystem from nutrient pollution.

The Eggstatt plant discharges into small streams that flow into the Chiemsee, a large lake in Bavaria. The Chiemsee drains via the Alz river to the Inn and then the Danube, ultimately reaching the Black Sea. The lake and its wetlands are ecologically important, supporting diverse bird species and aquatic plants. Advanced treatment at the plant helps prevent eutrophication in the Chiemsee.