Description of execution-photo documentation of recovered soil /rocklisting of soil layers (soil type , depth , degree of weathering , etc .)-schematic diagram-floor planExecution of Drilling :Two probes : 1x single U-Pipe Probe ; 1 double U-Pipe Probe . Pipe Material PE-HD , SDR11Borehole approx . 120-130m depth , no smaller than 120mm diameterPotential collapse of borehole must be prevented at all times by installation of protectiveconduit .Boreholes must be fully refilled by mechanical injection of suitable injection material(manual filling by hand shovel is not acceptable )