EDAR CUBIA Wastewater Treatment Plant, Grau / Grado, Asturias, Spain

EDAR CUBIA is a wastewater treatment plant located in Grau / Grado, Asturias, Spain. The facility serves a population of approximately 12,400 people, classifying it as a medium agglomeration under EU standards. As a Spanish plant, EDAR CUBIA operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating it is sized to handle the local wastewater load. The plant discharges treated effluent into the local watershed, which ultimately drains into the Cantabrian Sea. This coastal region supports diverse marine life and is an important ecological area. Proper treatment helps protect the receiving waters from nutrient pollution and other contaminants.

EDAR CUBIA discharges into the Nalón River basin, which flows northward through Asturias and empties into the Cantabrian Sea. The Cantabrian Sea is part of the Bay of Biscay, a productive marine ecosystem supporting fisheries and biodiversity. The plant's location within 50 km of the coast means its effluent can influence coastal water quality, making effective treatment important for protecting marine habitats.