<p>The article presented below aims to propose the debate around alternative (or alternatives) of solution to the tension between the formal city and the informal city, resulting in situations of discrimination or segregation in access to public services, particularly in the case of water service. To try to overcome this dichotomy (formal city - informal city), it will be used as line of argument the notion of right to the city and the principle of nondiscrimination in the distribution of water service.</p>