To assess the degree of influence of natural factors on the groundwater mineralization, it is proposed to simultaneously consider in a static and dynamic position the results of titrimetric determination of the total mineralization and concentration of calcium and magnesium ions in spring water. This is shown by the example of four springs located in the territory of Kaluga. The study made it possible to establish: the average annual background concentrations, as well as to justify the relative variable for groundwater in springs No. 1, No. 3 and No. 4 and the influence of the natural factor on the formation of the total hardness and concentration of calcium and magnesium ions in the study period, relatively stable for groundwater in spring No. 2 by the value of the molar ratio of the concentrations of calcium and magnesium ions.

To assess the degree of influence of technogenic factors on the groundwater mineralization, it is proposed to consider simultaneously in a static and dynamic position the results of conductometric determination in spring water of generalized indicators, such as electrical conductivity and the coefficient of identification of the mineral composition of water. This is shown by the example of four springs located in the territory of Kaluga. This made it possible to establish the average annual background values of electrical conductivity and the coefficient of identification of the mineral composition of water, as well as to justify the permissible or weakly expressed degree of influence of technogenic factors on the quality of groundwater in the period from November 2017 to October 2018 by the criterion of exceeding the error of the conductometric method (2%) by 3 or more times.

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