ZV Oberer Sinngrund Sitz Burgsinn - Closed Wastewater Treatment Plant in Mittelsinn, Bavaria

ZV Oberer Sinngrund Sitz Burgsinn is a wastewater treatment plant located in Mittelsinn, within the Main-Spessart district of Bavaria, Germany. The plant served a population of approximately 1,822 people and was designed with a capacity of 4,400 cubic meters per day. It is currently closed, with its operational status listed as closed. The plant provided secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The directive mandates secondary treatment for populations between 2,000 and 10,000 in freshwater areas, and Germany implements this through its national water management laws. The plant's discharge volume was recorded at 834.25 cubic meters per day. The treated effluent from the plant would have been discharged into a local watercourse, likely the Sinn River, which flows into the Franconian Saale and eventually the Main River, a major tributary of the Rhine. The Rhine basin is ecologically significant, supporting diverse aquatic life and serving as a critical waterway for Europe.

The plant is located inland in the Sinn River valley, part of the Rhine basin. The Sinn River flows into the Franconian Saale, which joins the Main River near Gemünden. The Main then flows into the Rhine, a major European waterway that supports diverse fish species and migratory birds. The region is characterized by forested hills and agricultural land, and the local watershed contributes to the overall water quality of the Rhine delta.