DEP_COM_VALLE_MAZZONE Wastewater Treatment Plant, Lariano, Lazio, Italy

DEP_COM_VALLE_MAZZONE is an advanced wastewater treatment plant located in Valle Mazzone, Lariano, in the Lazio region of Italy. The plant serves a population of approximately 3,900 residents, with a designed capacity of 4,000 m³/day and an average discharge volume of 772.06 m³/day. It operates under Italy's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for agglomerations of this size. The plant employs advanced treatment processes, ensuring high-quality effluent that meets stringent regulatory standards. As an inland facility more than 10 km from the coast, it discharges treated water into local watercourses that eventually drain into the Tyrrhenian Sea. The advanced treatment level provides effective removal of nutrients and pollutants, protecting the receiving waters. The plant plays a vital role in safeguarding the local watershed, which supports diverse aquatic life and contributes to the ecological health of the region. Its operation helps maintain water quality in the Tiber River basin and downstream coastal areas, supporting both environmental and public health.

The plant discharges into local streams that flow into the Tiber River basin, ultimately reaching the Tyrrhenian Sea. The watershed supports diverse aquatic ecosystems and is important for regional biodiversity. Advanced treatment helps protect these waters from nutrient pollution and other contaminants.