PILAR DE LA HORADADA Wastewater Treatment Plant, Pilar de la Horadada, Spain

PILAR DE LA HORADADA is a wastewater treatment plant located in Pilar de la Horadada, within the Comunitat Valenciana region of Spain. The facility serves a population of approximately 59,413 people, placing it in the medium agglomeration category under EU classification. The plant is situated near the Mediterranean coast, less than 50 kilometers inland. As a Spanish wastewater facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The regulatory framework ensures that the plant meets discharge standards to protect the receiving environment. The treated effluent from the plant likely discharges into the Mediterranean Sea via local watercourses or drainage systems. The plant plays a key role in protecting the coastal waters of the Costa Blanca, which support diverse marine life and are important for tourism and recreation. The region's semi-arid climate makes water reuse and efficient treatment particularly valuable.

The plant's treated wastewater ultimately reaches the Mediterranean Sea, likely through the Segura River basin or coastal drainage channels. The receiving coastal waters are part of the western Mediterranean, which supports seagrass meadows, fish nurseries, and migratory bird routes. The area is ecologically sensitive due to tourism pressure and water scarcity, making effective treatment critical for maintaining water quality and marine biodiversity.