 In turn, such longer term infrastructure development helps avoid future cost burdens associated with the types of health and environmental hazards experienced under privatisation, much of which was borne by the state in the past.Further, the social benefits of water remunicipalisation have been visible in Arenys de Munt (Spain), where the local government and the new public operator restructured the tariff system to guarantee equitable access to water for low-income households.In Buenos Aires, Argentina, achieving universal access to water became a top priority for the new public operator AySA.