CAA were modified, decreasing the arsenic standard in water for human consumption from 0.05 to 0.01 mg L−1, and setting a 5-year period-whose deadline was in June 2012-to adapt to the new values. Subsequently, the Comisión Nacional de Alimentos (CONAL; National Food Commission) (2011), decided to extend the original deadline until the results of the study “Hidroarsenicismo y Saneamiento Básico en la República Argentina. Estudios básicos para el establecimiento de criterios y prioridades sanitarias en cobertura y calidad de aguas” (“Hydroarsenicism and Basic Sanitation in Argentina. Basic studies to establish guidelines and sanitary priorities in water coverage and quality”), whose terms were set by the Subsecretaría de Recursos Hídricos de la Nación (National Undersecretariat of Water Resources). Neither task had set a deadline, nor does the validity of the mentioned standard. However, an interesting prospect has emerged in line with the above-mentioned proposal of the authors, if the principles formulated are taken into consideration.