At the outset, it is agreed that within the framework of Sustainable Development, Social Work has established areas and fields of intervention around which social services have been developed, mainly those related to water care with respect to quality of life and subjective wellbeing, determinants of the evaluation of public policies, environmental programmes and strategies of attention to migrant communities. In this scheme, Environmental Social Work acts as a mediator of supply policies and civil demands, considering the limitations of space, time and infrastructure, but the generality of its dimensions, categories and variables inhibit the analysis of the subjectivity inherent in the objective indicators of sustainability. It is therefore necessary to delve deeper into the psychological, cognitive and behavioural dimension in order to establish individual or community needs, expectations, demands and capacities in the face of environmental crises and water shortages.