IDL_CANTAGRILLO Wastewater Treatment Plant, Cantagrillo, Tuscany

IDL_CANTAGRILLO was a wastewater treatment plant located in Cantagrillo, a frazione of Serravalle Pistoiese in the Tuscany region of Italy. The plant provided secondary treatment for municipal wastewater, serving the local population in this inland area of the Pistoia province. As a closed facility, it is no longer operational, but its infrastructure contributed to the region's sanitation history. As an Italian plant, it operated under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this scale. The plant's secondary treatment level met the standard requirements for inland freshwater discharge, ensuring compliance with European regulations during its operational period. The plant's treated effluent would have been discharged into local watercourses that drain into the Ombrone Pistoiese river, a tributary of the Arno River. The Arno flows through Tuscany to the Tyrrhenian Sea, supporting diverse aquatic ecosystems and agricultural water use downstream.

The plant's discharge would have entered local streams feeding the Ombrone Pistoiese river, part of the Arno River basin. The Arno flows through Florence and Pisa before reaching the Tyrrhenian Sea, supporting ecologically sensitive wetlands and coastal habitats. The region's Mediterranean climate and agricultural land use make water quality management important for both human and ecological health.