EYDAP - Athens Water Supply and Sewerage Company (EYDAP SA) is the largest of its kind in Greece. The Company serves in the water supply sector approximately 4,300,000 customers through an extensive network of 2,020,000 water meters and a 9,500 km of water pipes. The sewerage sector serves 3,500,000 residents with sewers spreading at almost 6,000 km. The Company operates four water treatment plants that have a nominal supply from 200.000 to 600.000 m3 daily each. Four reservoirs are the company’s raw water source. All reservoirs are artificial except one, the Lake Yliki. The largest reservoir is Lake Mornos with a capacity of 764 million m3, while the smallest one, Lake Marathon, has a capacity of 25 million m3. EYDAP’s aqueduct has a length of 485 km and operates under a combination of free flow and pumping. EYDAP’s expertise in operating large water and wastewater treatment plants and networks ranks it very high among the Mediterranean water and wastewater companies. EYDAP maintains an up-to-date R&D department staffed with experienced researchers as well as modern laboratories and installations. EYDAP’s researchers have already published a large number of scientific work regarding water quality control and related innovative analytical methods. The R&D department of EYDAP is going to be responsible for the participation of the company in the project and for the implementation and evaluation of the actions.