ZV Roefingen Haldenwang Shaldenwang Wastewater Treatment Plant, Haldenwang, Bavaria

ZV Roefingen Haldenwang Shaldenwang is a former wastewater treatment plant located in Haldenwang, a municipality in the Günzburg district of Bavaria, Germany. The plant served a population of approximately 1,916 people and was classified as an advanced treatment facility, reflecting Germany's stringent water quality standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant had a designed capacity of 2,500 cubic meters per day and a recorded discharge volume of 484.89 cubic meters per day, indicating it operated well below its capacity. Although the plant is now closed, its advanced treatment level suggests it was equipped to remove nutrients such as nitrogen and phosphorus, which is typical for plants in sensitive areas under the EU directive. The treated effluent from the plant would have discharged into a local watercourse within the Danube River basin, which ultimately flows into the Black Sea. The region's water bodies support diverse aquatic life and are part of a larger ecological network, making advanced treatment important for protecting downstream water quality.

The plant was situated in the Danube River basin, with its treated effluent likely entering a tributary of the Danube. The Danube flows through multiple countries before reaching the Black Sea, supporting rich biodiversity including fish species and migratory birds. Advanced treatment helps reduce nutrient loading, which is critical for preventing eutrophication in downstream lakes and coastal areas.