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Virginality indicates how protected a water is from its surroundings. It is determined by the water’s level of nitrate, an inorganic compound made up of one nitrogen atom and three oxygen atoms. Nitrate is easily carried through soil by water.The substance can leach into the ground below the root zone through heavy rainfall or irrigation, and it may subsequently find its way into groundwater. In its natural state, water has less than 1 mg/l of nitrate; higher levels typically reveal a compromised water. This contamination may come from fertilizer, animal waste products, decaying plant matter, septic tanks, or sewage treatment systems. Only testing can determine nitrate levels in water, as nitrate has no taste, odor, or color.The World Health Organization recommends that exposure to nitrate should not exceed 50 mg/l for short periods. Nitrate is not removed by standard water softeners or filters, including carbon adsorption filters, and boiling water. Following system of icons to describe the Virginality of bottled water:

  Superior 0 - 1mg/l

  Very Good 1 - 4mg/l

  Good 4 - 7mg/l

  Acceptable 7 - 10 mg/l

  Potable 10 -50 mg/l

Kraljevska (royal) water from the Radakovica spring was awarded five stars for its exceptionally low nitrate levels of only 0.21 mg/l.

Modern and thorough methods of water quality testing have confirmed high quality and exceptional purity of Radakovica spring water, which were recognized a long time ago by people living in the area.