Overview
VUELTA OSTRERA wastewater treatment plant serves Requejada, Cantabria, Spain, with a designed capacity of 1.00 and a population equivalent of 102,983. Located near the coast, it operates under EU regulations.
VUELTA OSTRERA is a wastewater treatment plant located in the port area of Requejada, in the municipality of Polanco, Cantabria, Spain. It serves a population equivalent of 102,983, classifying it as a large agglomeration under EU standards. The plant is situated near the Cantabrian coast, within 50 km of the sea. As a large agglomeration in Spain, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum and tertiary treatment in sensitive areas. The designed capacity is 1. Spanish wastewater infrastructure is regulated by the national water authorities and regional environmental agencies. The plant discharges into the local water system, which ultimately drains into the Cantabrian Sea (Bay of Biscay). This coastal region supports diverse marine life and is an important area for fisheries and tourism. Proper treatment is essential to protect water quality and the ecological health of the adjacent marine environment.
Environmental context
The plant's discharge flows into the Cantabrian Sea via local waterways. The Bay of Biscay is a productive marine ecosystem supporting commercial fish stocks and migratory species. Coastal waters near Requejada are used for recreation and shellfish harvesting, making nutrient and pathogen removal critical. The region's estuaries provide nursery habitats for fish and support diverse bird populations.
Frequently asked questions
VUELTA OSTRERA is located in the port area of Requejada, in the municipality of Polanco, Cantabria, Spain.
The plant serves a population equivalent of 102,983, classifying it as a large agglomeration under EU standards.
The plant discharges treated wastewater into local waterways that flow into the Cantabrian Sea (Bay of Biscay).
As a Spanish plant serving over 100,000 people, VUELTA OSTRERA must comply with the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and potentially tertiary treatment in sensitive coastal areas.
For large agglomerations in Spain, secondary treatment is standard, with tertiary treatment often required in sensitive coastal zones to protect marine ecosystems and comply with bathing water quality standards.
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