DEPURATORE DI STORO Wastewater Treatment Plant, Darzo, Italy

DEPURATORE DI STORO is a municipal wastewater treatment plant located in Darzo, a frazione of Storo in the province of Trento, Trentino-Alto Adige region, Italy. The facility serves a population of about 5,707 residents, placing it in the small-to-medium agglomeration category under Italian and EU regulations. As a plant serving fewer than 10,000 population equivalent (PE), it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC) requirements for agglomerations between 2,000 and 10,000 PE. Such plants are generally required to provide secondary treatment or equivalent, with appropriate permits issued by the regional environmental authority (Provincia Autonoma di Trento). The plant's operational details are managed as part of the regional wastewater infrastructure. The treated effluent is discharged into the local watercourse, likely the Rio Lóra or a tributary, which flows into the Chiese River and eventually into the Po River, the largest river in Italy. The Po basin supports extensive agriculture and diverse aquatic ecosystems, making proper treatment essential for downstream water quality and ecological health.

The plant discharges into the Rio Lóra, a small stream that joins the Chiese River, a tributary of the Po River. The Po River flows eastward across northern Italy into the Adriatic Sea. The Po basin is a densely populated and agriculturally intensive region, where nutrient loading from wastewater can contribute to eutrophication in the Adriatic. The plant's location in the Alpine foothills means the receiving waters are relatively fast-flowing, aiding dilution but requiring consistent treatment to protect downstream habitats.