Lenningen Gutenberg Wastewater Treatment Plant, Schlattstall, Baden-Württemberg

The Lenningen Gutenberg wastewater treatment plant is located in Schlattstall, a district of Lenningen in the Landkreis Esslingen, Baden-Württemberg, Germany. The facility served a population of 1,700 and is now closed. It was part of the municipal wastewater infrastructure for the Lenningen area. As a plant serving a small agglomeration in Germany, it would have been subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for inland discharges from populations over 2,000. For smaller agglomerations, appropriate treatment is required to ensure receiving waters meet quality standards. The plant's operational history reflects Germany's high compliance with EU wastewater regulations. The plant's receiving waters ultimately drain into the Neckar River basin, which flows into the Rhine River and then to the North Sea. The Neckar is a major tributary of the Rhine, supporting diverse aquatic life and serving as an important ecological corridor in southwestern Germany.

The Lenningen Gutenberg plant discharged into the local watershed within the Neckar River basin. The Neckar flows through Baden-Württemberg before joining the Rhine River, which drains into the North Sea. This region supports diverse aquatic ecosystems, including fish species such as grayling and barbel, and the Rhine is a major migratory corridor for Atlantic salmon and eels. Proper wastewater treatment is essential to protect water quality in this ecologically sensitive river system.