Results of regime and single researches of waters of the Munoksky field are given in article. The actual material of long-term data is presented: macrocomponent structure, the microcells, the dissolved organic substances. The Munoksky field located in the territory of the Kazachinsko-Lensky region of the Irkutsk region holds special position among Mineral voter Eastern Siberia and Russia. Sources are located in 20 km to the south from railway station Ulkan (the western site of BAM), on the right coast of the river Kirengi. Interest to research of these waters isn't casual, first of all, it is connected with spontaneous use for a long time waters of a source the 17th local population, tourists and visitors from the different cities of the country for treatment of diseases of kidneys, a liver, a metabolism. Similar medical action mineral water of the resort of Truskavets Naftusya (the Western Ukraine), being the world famous resort possesses.