SKA LIEBELSBERG Wastewater Treatment Plant, Neubulach-Stadt, Germany

SKA LIEBELSBERG is a former wastewater treatment plant located in Neubulach-Stadt, a district of Neubulach in the Calw district of Baden-Württemberg, Germany. The plant served a population of 1,600 and had a designed capacity of 3,000 m³/day, with an average discharge volume of 404.92 m³/day. It is now closed. The plant provided secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Under this directive, secondary treatment is mandatory for all discharges from agglomerations with a population equivalent (PE) greater than 2,000. For smaller agglomerations like this one, appropriate treatment is required to meet water quality objectives. The plant's discharge likely entered a local watercourse within the Neckar River basin, which ultimately drains into the Rhine River and then the North Sea. The surrounding region is characterized by mixed agricultural and forested land use, with the Teinach River flowing nearby. The closure of the plant suggests that wastewater is now conveyed to a larger regional facility, improving treatment efficiency and environmental protection.

The plant's discharge would have entered a tributary of the Teinach River, part of the Neckar basin, which flows into the Rhine and then the North Sea. The Neckar basin supports diverse aquatic life, including fish species such as grayling and brown trout. The region is ecologically sensitive due to its karst geology and groundwater recharge areas, making proper wastewater treatment essential for protecting downstream water quality.