Bohmenkirch Treffelhausen Wastewater Treatment Plant, Steinenkirch, Germany

Bohmenkirch Treffelhausen is a municipal wastewater treatment plant located in Steinenkirch, within the municipality of Bohmenkirch in the Landkreis Goppingen district of Baden-Wurttemberg, Germany. The plant serves a population of around 11,100 residents, placing it in the medium agglomeration category under the EU Urban Waste Water Treatment Directive (UWWTD). As a German plant of this scale, it is expected to provide at least secondary biological treatment in compliance with the EU UWWTD. The directive requires secondary treatment for agglomerations above 2,000 population equivalent (PE), and more stringent tertiary treatment if the receiving waters are designated as sensitive areas. The plant's treatment processes are designed to meet these standards, ensuring effective removal of organic matter and nutrients. The treated effluent is discharged into local watercourses that ultimately drain into the Rhine River basin, which flows through Germany and into the North Sea. The plant plays a key role in protecting the water quality of the region's streams and rivers, supporting aquatic ecosystems and downstream water uses.

The plant discharges into small streams in the Swabian Alb region, which are part of the Rhine River basin. These waters flow through the Neckar River and eventually reach the North Sea. The local watershed supports diverse aquatic life and is important for regional biodiversity. The plant's treatment helps prevent nutrient pollution that could cause eutrophication in downstream water bodies.