After the emplacement of engineered barrier system (EBS), it is expected that the near-field environment will be impacted by phenomena such as heat dissipation by conduction and other heat transfer machanism, infiltration of groundwater from the surrounding rock into the EBS. This report describes the results on measurement of isothermal water diffusivity and thermal water diffusivity in compacted bentonite and the results on comparison between measured and theoretical calculated properties. The results indicate that the Darcy's low and Philip & de Vries model are applicable to estimating the isothermal water diffusivity and the thermal water diffusivity in compacted bentonite.