DEPURATORE DI DIMARO Wastewater Treatment Plant, Presson, Italy

DEPURATORE DI DIMARO is a municipal wastewater treatment plant located in Presson, a locality within the Dimaro Folgarida area of Trentino-Alto Adige, Italy. The plant serves a population of approximately 7,689 people, placing it in the small-to-medium agglomeration category under EU classification. It is situated in the Val di Sole, a valley in the Italian Alps, and its operations are integral to the local community's sanitation infrastructure. As a plant serving fewer than 10,000 people, it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC) requirements for secondary treatment, unless discharging into a sensitive area that demands more advanced treatment. The directive mandates that agglomerations of this size must have collecting systems and appropriate treatment to protect receiving waters. Italy has transposed these requirements into national law, and the plant is expected to comply with relevant discharge standards. The plant's treated effluent is discharged into local watercourses that drain into the Noce River, a tributary of the Adige River. The Adige flows south through Trentino and Veneto before entering the Adriatic Sea near Chioggia. The Alpine watershed supports diverse aquatic life, including fish species such as brown trout and grayling, and the region is known for its pristine mountain streams. Proper treatment is essential to maintain water quality in this ecologically sensitive alpine environment.

The plant discharges into the Noce River, which flows into the Adige River, one of Italy's major rivers. The Adige drains into the Adriatic Sea, supporting a range of aquatic ecosystems from alpine streams to coastal wetlands. The watershed is ecologically sensitive, hosting species such as the marble trout and the European bullhead, and is important for regional biodiversity and water quality.