Depuratore di Stenico Wastewater Treatment Plant, Stenico, Trentino-Alto Adige, Italy

Depuratore di Stenico is a municipal wastewater treatment plant located in Stenico, within the Trentino-Alto Adige region of northern Italy. The facility serves a population of approximately 8,431 residents in the Giudicarie valley area, situated in the Alpine foothills. The plant is part of the regional water management infrastructure managed by local authorities. As a plant serving a population equivalent of around 8,400, it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC) category for agglomerations between 2,000 and 10,000 population equivalent. Under this directive, such plants are required to provide secondary treatment (biological treatment) as a minimum standard. The plant's treatment processes are expected to comply with Italian national regulations that transpose the directive, ensuring adequate removal of organic matter and suspended solids before discharge. The treated effluent is discharged into local watercourses that drain into the Sarca River, which flows through the Giudicarie valley and eventually into Lake Garda, Italy's largest lake. Lake Garda is a sensitive ecosystem supporting diverse aquatic life and is a major recreational and tourism resource. The plant plays a crucial role in protecting the water quality of the Sarca River and downstream Lake Garda from nutrient pollution and pathogens.

The plant discharges into tributaries of the Sarca River, which flows south through the Giudicarie valley and empties into Lake Garda, a large subalpine lake. Lake Garda supports a rich aquatic ecosystem, including endemic fish species, and is an important migratory corridor for birds. The watershed is ecologically sensitive due to tourism pressure and agricultural runoff, making effective wastewater treatment critical for preventing eutrophication and maintaining water quality.