VOGOGNA_SUD Wastewater Treatment Plant, Megolo Cima, Piemonte

VOGOGNA_SUD is a municipal wastewater treatment plant located in Megolo Cima, a frazione of Pieve Vergonte in the Verbano-Cusio-Ossola province of Piemonte, Italy. The plant serves a population of approximately 3,653 people and has a designed capacity of 8,000 m³/day, with an average discharge volume of 410.96 m³/day. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids, ensuring compliance with EU effluent standards. The treated effluent is discharged into local watercourses that ultimately drain into the Toce River, a tributary of Lake Maggiore. Lake Maggiore is a large subalpine lake shared between Italy and Switzerland, supporting diverse aquatic life and serving as a vital freshwater resource for the region. The plant's operation helps protect the lake's water quality and ecological balance.

The plant discharges into the Toce River, which flows into Lake Maggiore, a major subalpine lake in the Po River basin. Lake Maggiore supports a rich ecosystem, including endemic fish species and migratory birds, and is an important source of drinking water and recreation. The secondary treatment provided by VOGOGNA_SUD helps reduce nutrient loads and organic pollution, mitigating eutrophication risks in the lake.