Drilling of several engeneering-geological uncased and cased boreholes to 30 m max. depth with total 650 m lenght. Selected boreholes has cased with PVC casing 125 mm diameter nad annular space filling by sorted gravel of 4 – 8 mm grade. On the top of boreholes has steel well screen with warning rod.
10/2017 – 01/2018
