Partially treated sewage from a storage facility in the northern suburb of Metamorphosis will be treated at a plant in Greece, according to sources yesterday, as the Athens Water Supply and Sewage Company (EYDAP) looks for solutions to its waste management headache. The agreement will help ease some of Athens’s serious sewage problems but the plant’s capacity is too small to provide any further relief as the deal only involves about 2,000 tons of sewage. The sludge will be transported to a facility in Aliartos, central Greece, where it will be mixed with plant remnants and treated before being solidified at a cost of 35 euros per ton. The solution would be ideal for EYDAP if it could be applied on a larger scale. The water company must still decide on which company to appoint to manage some 60,000 tons of sludge for treatment from its main storage facility on the islet of Psyttaleia. EYDAP has been quoted 142 euros per ton when sources say that it had placed a 100-euro cost ceiling.