DP01606203_CASTELLI_CALEPIO_CIVIDINO Wastewater Treatment Plant, Castelli Calepio, Italy

DP01606203_CASTELLI_CALEPIO_CIVIDINO is a wastewater treatment plant located in Castelli Calepio, in the Lombardia region of Italy. The plant serves a population of approximately 5,182, classifying it as a small agglomeration under EU regulations. As a plant in Italy, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for discharges into freshwater and coastal waters. For agglomerations of this size, secondary treatment is typically mandated, with possible additional requirements if the receiving waters are sensitive. The plant's treated effluent is discharged into the local water system, which ultimately drains into the Po River basin and then into the Adriatic Sea. This downstream environment supports diverse aquatic life and is an important ecological corridor in northern Italy.

The plant discharges into the local water network that flows into the Oglio River, a tributary of the Po River. The Po River basin is the largest in Italy, supporting extensive agriculture and diverse ecosystems before reaching the Adriatic Sea. The Adriatic Sea is a semi-enclosed basin with sensitive coastal habitats, including lagoons and delta areas that require careful management of nutrient inputs to prevent eutrophication.