Geomagnetic and Magnetotelluric Observations Research Infrastructure Center  CIBOGM         

The entity responsible: Institute of Geophysics PAS (IG PAS) Department of Magnetism

The purpose of the task is to establish a mobile infrastructure for studying the propagation of groundwater contamination, particularly related to contaminants originating from post-industrial waste dumps. To study the migration of groundwater contamination and monitor the entirety of the process, it is crucial to apply a broad range of geophysical methods, particularly geoelectrical techniques such as the resistivity method and its complementary conductometric method. A common feature of the two aforementioned methods is resistivity imaging, which is the interpretation of the geological structure and water regime in the ground, based on the analysis of the distribution of conductivity. Both the methods find excellent application in charting the migration of groundwater contamination due to the significant correlation between the mineralisation of water solutions and their resistivity (conductivity).
The waste stored in a waste dump is exposed to the influence of water from atmospheric precipitation, and often also comes into interaction with subsurface water. Various components are leached by water through filtration, thereby increasing the water’s level of mineralisation. The changes in water chemism that occur in the vicinity of the waste dumps may be studied indirectly through the observation of the changes in the distribution of electrical conductivity in a hydrogeological medium. Contaminant migration monitoring is possible through the periodic repetition of measurements in selected locations.

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