Groundwaters in vicinity of subway line A

The main aim of bachelor's thesis was to process and assess data measured during groundwater monitoring in the surroundings of construction sites of the new subway line A (21/04/2010 - 31/08/2011). The data from 17 monitored objects (subhorizontal mine galeries, springs and hydrogeological wells), which, with few exceptions, drain mainly Cenomanian aquifer (1 object in Orovician shales a 2 objects in Quaternary aquifer). For outflows from galeries and springs, statistics of the following parameters was calculated: discharge, pH, electric conductivity and water temperature. Discharge of all studied objects shows very low time variation. pH is neutral waters and overall, pH values show very low variability. Mean conductivity of studied objects suggests lower to moderate mineralization of waters. Groundwater temperature does not respond significantly to temperature changes at the surface. Marked temporary declines in water table leveal were probably caused by tunnel construction in proximity of the wells. Chemical analyses of groundwater from all 17 objects demonstrated that groundwater in the studied area belongs to the Ca-HCO3 type. Waters from different objects differ in increased concentrations of chlorides, nitrates or sulphates. Water is undersaturated in gypsum. Water is undersaturated in..