Athens Water Supply & Sewerage. 

Athens Water Supply and Sewerage Company S.A. (EYDAP), together with its subsidiaries, is the leading provider of water supply, water purification, wastewater treatment, and sewerage services throughout Greece. The company's responsibilities span the entire lifecycle of infrastructure management, from the design, construction, and installation to the operation, maintenance, development, and modernization of all water and sewage facilities and networks. EYDAP oversees an expansive water distribution grid stretching 14,000 kilometers and manages four water treatment plants with a combined daily processing capacity of 1.8 million cubic meters. Additionally, it operates an 8,500-kilometer sewerage network and three primary wastewater treatment centers situated in Psyttalia, Metamorphosis, and Thriasio. Beyond its core services, the company is also involved in irrigation and rainwater collection. Notably, EYDAP generates electricity from a diverse mix of sources, including hydroelectric, solar, biogas, natural gas, and thermal energy. Established in 1980 and headquartered in Athens, Greece, EYDAP functions as a subsidiary of Hellenic Corporation of Assets & Participations S.A.