The main objective is to develop a new technology based on magnetic resonance imaging for the detection and mapping of the water present in the first meters of the ground (0-10m). The equipment is based on the proton NMR detection of water in the ground magnetic field. Such instrumentation has already been developed. The originality of our system as compared to the existing one is the capability of geographical signal localisation, which was not presently possible with the existing system. The objective is to obtain ground water imaging from the surface to around 10 meters deep.