With the constitution of 1991, the country took on the dual challenge of making a guarantor of the collective rights of Colombians, while defined the role it should play in front of the market, which in practice would mean a step towards the dominance of the private sector and the establishment of an institutional framework that would enable it to maintain a healthy balance between economic and social development. And although you can not ignore developments in this area, particularly with regard to access to public services are concerned, it is clear that the proposal resulting from the new institutional framework still leaves many gaps, which are manifested in coverage and quality, particularly when it comes to people with lower incomes in both rural and urban areas. This is the great challenge that will have to bear the responsibility for the provision of services such as water and sewerage, as expressed in this article still in the pilot departments in the area, such as the case of Antioquia, recorded significant deficit.