The purpose of this action is to improve the sanitation and purification of the Arona Este San Miguel System (Tenerife), and the resolution of problems of non-compliance with the Directive on water protection 91/271 / CEE, as well as the regeneration of treated wastewater to allow its reuse. It will be carried out, through the construction of the Regional WWTP of Montaña de Reverón (Arona), a network of impulse collectors and terrestrial outfalls as well as new pumping stations and the rehabilitation of some existing ones.