With the safe water indicator reaching 99% (98.65%), the population of Portugal can be assured that they can drink tap water with confidence, as shown in the ERSAR annual report on "Water Quality Control For Human Consumption "for the year 2015.
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In fact, the safe water indicator in the order of 99% confirms the excellent quality of water for human consumption in mainland Portugal, placing us at the level of the most developed countries of Western Europe. See here Volume 2 of the Annual Report of the Water and Waste Sector in Portugal. The report seeks to synthesize the information considered more relevant in the control of the quality of water for human consumption. In addition to complying with the provisions of current legislation, it is also intended to compare the results obtained with the results of previous years, allowing to evaluate the evolution of the situation by municipality and by management entity.