DP01406504_TEGLIO Wastewater Treatment Plant, Castello dell'Acqua, Lombardia

DP01406504_TEGLIO is a wastewater treatment plant located in Castello dell'Acqua, within the Lombardia region of northern Italy. The plant serves a population equivalent of 21,201, classifying it as a medium-sized agglomeration under EU classification. Its location in the Alpine foothills of Valtellina places it in a sensitive mountainous environment where water quality protection is critical. As an Italian plant serving over 10,000 people, DP01406504_TEGLIO is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment as a minimum. For plants in sensitive areas, such as those discharging into alpine rivers, tertiary treatment may be mandated to reduce nutrient loads. The plant's operational details are consistent with the regulatory framework for this population tier. The treated effluent from this plant likely discharges into a local watercourse within the Adda River basin, which flows into Lake Como and eventually the Po River and Adriatic Sea. The alpine watershed supports diverse aquatic life and is important for regional water supply and tourism. Proper treatment helps protect downstream ecosystems and recreational water quality.

The plant is situated in the Valtellina valley, part of the Adda River basin. Treated wastewater likely enters a tributary of the Adda River, which flows into Lake Como, a major subalpine lake, and then continues to the Po River and the Adriatic Sea. This watershed supports sensitive aquatic habitats, including cold-water fish species, and is a key resource for irrigation and tourism in Lombardy.