Overview
COURMAYEUR wastewater treatment plant in Derby, Valle d'Aosta, Italy, is a closed facility with a designed capacity of 60,000 m³/day. It provided secondary treatment for the alpine region.
The COURMAYEUR wastewater treatment plant is located in Derby, a locality in the Valle d'Aosta region of northern Italy. Situated in the Alpine valley near Courmayeur, the facility served the local population and tourist infrastructure. The plant is now closed, having operated with secondary treatment processes. As a plant in Italy, it operated under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations above 2,000 population equivalent. The designed capacity of 60,000 m³/day suggests it served a significant population, likely including seasonal tourist peaks. The area drains into the Dora Baltea river, which flows through the Aosta Valley and eventually into the Po River and the Adriatic Sea. The alpine watershed is ecologically sensitive, supporting diverse aquatic life and contributing to the Po basin's water quality.
Environmental context
The plant's discharge likely entered the Dora Baltea river, a tributary of the Po River, which flows into the Adriatic Sea. The alpine watershed is characterized by cold, oxygen-rich waters supporting trout and other sensitive species. The closure of the plant may reduce local nutrient loading, but legacy impacts and current wastewater management in the area remain important for the downstream ecosystem.
Frequently asked questions
The plant is located in Derby, a locality in the Valle d'Aosta region of northern Italy, near the town of Courmayeur in the Alpine valley.
The plant had a designed capacity of 60,000 m³ per day, indicating it served a substantial population, including seasonal tourist demand.
The operational status is listed as closed, which may be due to replacement by a newer facility, changes in local wastewater infrastructure, or decommissioning after serving its purpose.
The plant provided secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive for agglomerations of its scale.
Italian wastewater treatment plants operate under the EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for sensitive areas and larger agglomerations, with tertiary treatment where needed.
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