IDL_ZONA_167 Wastewater Treatment Plant, Massa Marittima, Toscana

IDL_ZONA_167 is a municipal wastewater treatment plant located in Massa Marittima, in the Toscana region of Italy. The plant serves a small population of 675 residents and operates with a designed capacity of 500 m³/day, currently discharging 133.63 m³/day of treated effluent. The plant provides secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Italian regulations implement this directive through national decrees, ensuring that small communities like Massa Marittima meet appropriate treatment standards before discharge. The treated wastewater is released into the local watershed, which ultimately drains into the Tyrrhenian Sea via the Bruna River or nearby coastal streams. The area is characterized by the metalliferous hills of the Colline Metallifere, and the receiving waters support diverse aquatic life and contribute to the ecological health of the southern Tuscany coastal zone.

The plant discharges into the local watershed that flows toward the Tyrrhenian Sea, likely via the Bruna River or smaller coastal streams. This area is part of the Colline Metallifere, a region with historical mining activity, and the receiving waters support aquatic ecosystems that are important for biodiversity in the Mediterranean coastal zone.