LEGNAGO_VANGADIZZA Wastewater Treatment Plant, Legnago, Veneto, Italy

LEGNAGO_VANGADIZZA is a wastewater treatment plant located in Legnago, in the Veneto region of northern Italy. Serving a population equivalent of approximately 43,396, the plant is part of the municipal infrastructure for the city and surrounding areas. The facility operates under Italy's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for collection and treatment based on agglomeration size. As a medium-sized agglomeration (between 10,000 and 100,000 population equivalent), the plant is required to provide secondary treatment as a minimum under the EU directive. In sensitive areas, such as those draining into the Adriatic Sea, more stringent tertiary treatment may be mandated. The regulatory framework ensures compliance with national and European standards. The treated effluent is discharged into local watercourses that ultimately drain into the Po River, Italy's longest river, which flows into the Adriatic Sea. The Po River basin supports extensive agricultural activity and is ecologically significant, hosting diverse aquatic life and serving as a migratory corridor for fish species. The plant plays a key role in protecting water quality in this important watershed.

The plant's discharge enters the local drainage network within the Po River basin. The Po River flows eastward through northern Italy and empties into the Adriatic Sea near Venice. The basin is a densely populated and agriculturally intensive region, making effective wastewater treatment critical for preventing nutrient pollution and safeguarding downstream ecosystems, including the Po Delta, which supports diverse birdlife and fish populations.