Overview
IDL_PONTE_A_TRESSA is a wastewater treatment plant serving Siena, Toscana, Italy, with a population equivalent of 90,214. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this sc
IDL_PONTE_A_TRESSA is a wastewater treatment plant located in Siena, Toscana, Italy, serving a population equivalent of 90,214. The plant is situated in the Consorzio Intercomunale Energia Servizi Acqua area, near Isola d'Arbia, and plays a key role in managing municipal wastewater for the region. As a medium-to-large agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC), the plant is expected to provide at least secondary treatment. The directive requires that agglomerations with a population equivalent above 10,000 achieve secondary treatment, and those in sensitive areas must meet more stringent tertiary standards. The regulatory framework ensures compliance with European standards. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Tyrrhenian Sea via the Arno River basin. The Toscana region is known for its sensitive coastal and riverine ecosystems, making proper wastewater treatment essential for protecting water quality and aquatic life. The plant's operations contribute to the health of downstream environments, including the Arno River and the Mediterranean Sea.
Environmental context
The plant's treated effluent flows into the local drainage network, which is part of the Arno River basin. The Arno River traverses Toscana before discharging into the Tyrrhenian Sea near Pisa. This coastal area supports diverse marine and estuarine habitats, including seagrass meadows and fish nurseries. Effective treatment at IDL_PONTE_A_TRESSA helps reduce nutrient loads and pollutants that could otherwise contribute to eutrophication and harm sensitive coastal ecosystems.
Frequently asked questions
IDL_PONTE_A_TRESSA is located in Siena, Toscana, Italy, near Isola d'Arbia along Strada di Balzano.
The plant serves a population equivalent of 90,214, classifying it as a medium-to-large agglomeration under EU regulations.
Treated wastewater from the plant is discharged into the local drainage network, which flows into the Arno River basin and ultimately reaches the Tyrrhenian Sea.
As an Italian plant, IDL_PONTE_A_TRESSA operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations over 10,000 PE and more stringent treatment in sensitive areas.
Plants of this scale in Italy typically provide secondary biological treatment, and may include nutrient removal if discharging into sensitive areas like the Arno River basin or coastal zones.
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