The purpose of this action is to improve the sanitation and purification of the Ponteareas core and its surroundings, by expanding the capacity of the current sewage plant, also improving the performance of the treatment process by eliminating nutrients, in compliance with the discharge quality parameters required by the Water Protection Directive 91/271/EEC and the implementation of a new network of general interceptors._x000D_ For this purpose in the A Moscadeira WWTP, a new arrival and pre-treatment work is built; the treatment capacity of the biological reactor is expanded to 22,525 inhabitants-equivalent, compared to the current 13,000; two secondary decanters are executed; a final disinfection channel with ultraviolet rays and a new 630 kVA transformation center is built. In the sanitation network, two perimeter collectors of the urban core of Ponteareas, Colector Perimetral Norte and Colector Perimetral Sur, are cleaned and rehabilitated the last section of the Xinzo River Interceptor Collector, executing a new pump well until the WWTP.