Overview
URALDE wastewater treatment plant serves Aduna in Euskadi, Spain, with a designed capacity of 1.00 and a population equivalent of 76,800. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC.
URALDE is a wastewater treatment plant located in Aduna, within the province of Gipuzkoa in the Basque Country (Euskadi), Spain. It serves a population equivalent of 76,800, classifying it as a medium-to-large agglomeration under EU regulations. As a Spanish facility, URALDE operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this size. The plant's designed capacity is 1. The directive requires appropriate treatment to protect receiving waters. The plant discharges into the local watershed, which ultimately drains into the Bay of Biscay via the Oria River basin. The downstream environment supports diverse aquatic life and is ecologically sensitive due to its proximity to the Atlantic coast. Proper treatment is essential to maintain water quality in this region.
Environmental context
URALDE discharges into the Oria River basin, which flows into the Bay of Biscay on the Atlantic coast. The downstream environment includes estuarine and coastal habitats that support diverse marine life and migratory species. The plant's treatment performance is critical to prevent nutrient enrichment and protect the ecological balance of the bay.
Frequently asked questions
URALDE is located in Aduna, in the province of Gipuzkoa, within the autonomous community of Euskadi (Basque Country), Spain.
URALDE serves a population equivalent of 76,800, classifying it as a medium-to-large agglomeration under EU regulations.
URALDE discharges treated wastewater into the Oria River basin, which flows into the Bay of Biscay on the Atlantic coast.
As a Spanish plant serving over 10,000 PE, URALDE is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for such agglomerations.
For agglomerations of this size in Spain, the EU UWWTD mandates secondary treatment, and often tertiary treatment is applied in sensitive areas to reduce nutrients and protect coastal waters.
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