Kunzing Wastewater Treatment Plant, Girching, Bayern, Germany

The Kunzing wastewater treatment plant is located in Girching, a district of Künzing in the Landkreis Deggendorf, Bayern, Germany. Designed to serve a population of 1,530, the plant provided advanced treatment for municipal wastewater before its closure. The facility had a designed capacity of 4,600 cubic meters per day and discharged approximately 387 cubic meters of treated effluent daily. As a German plant, it operated under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. The plant's closure may reflect consolidation of wastewater services in the region. The treated effluent from the plant would have discharged into local watercourses that drain into the Danube River basin, ultimately reaching the Black Sea. The Danube is a major European river supporting diverse aquatic ecosystems and providing water for agriculture and industry. The plant's advanced treatment level helped protect downstream water quality in this ecologically significant basin.

The plant's discharge would have entered small streams in the Danube basin, which flows through multiple countries before reaching the Black Sea. The Danube supports a rich diversity of fish and bird species, including sturgeon and pelicans, and its delta is a vital wetland ecosystem. Advanced treatment at this plant helped reduce nutrient loads and protect these downstream habitats.