The management of the supply d’aigua of l’Ajuntament is a municipal public service that implies the data processing by itself personal necessary to be able to loan and to charge the service to the user citizens. In case that l’Ajuntament s’hagi configured as a responsible for the treatment and the corresponding contract d’encàrrec with l’empresa has established dealer of the service, l’Ajuntament can access in any moment to the linked particulars the provision of the service. In case there is not this contract d’encàrrec and the responsible for the file was l’empresa dealer, the communication of particulars from the files of l’empresa dealer in l’Ajuntament it could find habilitation well in the consent of the user persons, or in l’article 11.2.c) of the LOPD.