Water shortages are a widespread problem faced by all Mexico City residents and those living in the metropolitan area. Shortages have a greater impact on vulnerable and disadvantaged communities, mainly impacting children and teenagers. According to the National Water Commission, 48% of public schools are not equipped with sanitation; 31% do not have drinking water, and 13% do not dispose of toilets; while UNICEF-Mexico estimates that only 62% of schools have access to water every day. In addition to this situation, and in view of the COVID-19 emergency, measures must be taken to help mitigate health risks at schools, given that continuous and safe water access is an essential prerequisite for people's health. Access to water and sanitation is a prerequisite for a safe return to school. Therefore, school interventions are a significant chance to provide essential access to water, thus enhancing better facilities, and, most importantly, children's and teenagers' wellbeing and health. To date, 2 rainwater-harvesting systems and 2 hand-washing stations have been set up in Mexico City public schools Municipality of Azcapotzalco), in addition to 2 Rainwater Committees created by the school community. We have also provided training on how to use and service the equipment to all teaching and administrative staff, as well as to students.