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Drinking water quality
Croatia is among the thirty water-richest countries in the world. Environmental protection and drinking water supply are the main problem and challenge for the survival and development of civilization. Drinking water is becoming a main resource in the 21st century due to the increase in the number of people and the changed standard.

These days we hear on a daily basis how drinking water is becoming the “new oil” and that there will soon be fights over it. Zagreb has enough drinking water for its future generations and there are no signs of any potential shortages. Since the beginning of Zagreb Vodovod (1878), the citizens of this city could boast that they drink water that, due to the structure of the Sava aquifer, is of an extremely high quality and at the same time bacteriologically and chemically healthy. The water quality control in Zagreb and Samobor water supply systems has been conducted by the Water quality control service as an internal laboratory of "Vodoopskrba i odvodnja d.o.o." since 1961, and the official control of the safety of water for human consumption is carried out by authorized laboratories of the following institutions:
  • "Dr. Andrija Štampar" Teaching Institute of Public Health - performs the control of the safety of water for human consumption on retaining hydrants in all water wells, water reservoirs and the distribution network of the City of Zagreb
  • Zagreb County Public Health Institute - conducts water quality control in the distribution network operated by "Vodoopskrba i odvodnja d.o.o." in the area of Zagreb county (city of Samobor and suburban settlements)

The Water quality control service of Vodoopskrba i odvodnja d.o.o. defines the Water quality monitoring programme in the Zagreb and Samobor water supply systems in accordance with the "Act on Water for Human Consumption" (Official Gazette 56/13, 64/15) and the "Regulation on conformity parameters, analysis methods, monitoring and water security plans for human consumption, and also the manner of keeping a register of legal entities which are performing public water supply"
(Official Gazette 125/17), and taking into consideration the daily measured values of water quality indicators in underground water, which is collected at water site wells, as well as water for human consumption which is delivered to consumers via water supply facilities and the distribution network.