Bad Boll Eckwalden Wastewater Treatment Plant, Eckwälden, Baden-Württemberg

Bad Boll Eckwalden was a wastewater treatment plant located in Eckwälden, a district of Bad Boll in the Göppingen district of Baden-Württemberg, Germany. The plant served a population of 1,750 and had a designed capacity of 3,750 cubic meters per day, with an average discharge volume of 442.88 cubic meters per day. It provided secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive for agglomerations of this size. As a German plant, it operated under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for all discharges from agglomerations with a population equivalent above 2,000. For smaller agglomerations like this one, appropriate treatment is required to meet water quality objectives. The plant's closure may reflect consolidation of wastewater services in the region. The plant discharged treated wastewater into a local watercourse that ultimately drains into the Neckar River basin, which flows into the Rhine River and then to the North Sea. The surrounding area is part of the Swabian Alb foothills, a region with sensitive karst aquifers and small streams that support diverse aquatic life.

The treated effluent from Bad Boll Eckwalden entered a local tributary of the Fils River, which flows into the Neckar River, a major tributary of the Rhine. The Rhine ultimately discharges into the North Sea. The region's karst geology makes groundwater particularly vulnerable to contamination, so proper wastewater treatment is critical for protecting local springs and streams that support aquatic ecosystems.