CALVI IMPIANTO SAN GIORGIO E SAN NAZZARO - San Giorgio del Sannio Wastewater Treatment Plant

CALVI IMPIANTO SAN GIORGIO E SAN NAZZARO is a municipal wastewater treatment plant located in San Giorgio del Sannio, in the Campania region of southern Italy. The plant serves a population of approximately 3,500 residents, reflecting its role in managing domestic wastewater for this inland community. The plant operates with 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. With a designed capacity of 3,500 m³/day and a current discharge volume of 692.88 m³/day, the facility has ample capacity to handle peak flows. The treated effluent is discharged into local watercourses that ultimately drain into the Calore River, a tributary of the Volturno River, which flows into the Tyrrhenian Sea. The plant's operation helps protect the water quality of these downstream environments, supporting aquatic life and recreational uses.

The plant discharges into the Calore River basin, which feeds into the Volturno River, one of southern Italy's major rivers. The Volturno flows into the Tyrrhenian Sea near Castel Volturno. The watershed supports diverse aquatic ecosystems and is important for regional agriculture and tourism. Secondary treatment reduces organic pollutants and nutrients, helping to prevent eutrophication in downstream waters.