The project that will be studied will serve areas of the Municipality of Pallini that until now do not have an integrated system of collection and treatment of their waste water. The sewage will be directed for treatment at the Peanias-Koropion Center. The project contributes to compliance with Directive 91/271 EEC. The area under study includes Lower Balana, Labour Houses I and II, Katza, Agios Nikolaos, Labour Houses III, Loutro area and Michalinos Region.