The overall aim of the SOIMON project is to develop a more advanced in-situ investigation method for identifying and characterising pollution in contaminated soil. This will be achieved by integrating sophisticated sensors (e.g. micro-chips, electrochemical sensors, spectrometry, and optical sensors) into a solid probe intended to drive down through the soil matrix to perform continuous or semi-continuous measurements.The sensor measurements provide improved and more precise data input through the chemometric analysis as basis for better decision making. Furthermore, the investigation method will be easier and quicker to use, and hence also less costly than current SOA investigation methods. The reason for this is the operation time that will be significantly reduced. In fact the drilling machine will operate at the speed of 0.5m/s and the different sensors will be adapted to offer the required sensitivity and reactivity at such high drilling speed.Tool wear presented high level of challenge in this area which affects the operation time and the efficiency of the investigation, and failure monitoring has raised quite a lot of interest amongst researchers and has consequently been studied in a number of research projects by research organisations. The reason for this interest is that drilling tool condition monitoring is considered important as it can affect the efficiency of the soil sensing process during drilling.The SOIMON project will develop an in-situ soil sensing system that is deployed in a sonic drill machine. The complete system/ bore pipes are going to be equipped with condition monitoring sensors in order to enhance the time, cost and reliability of the soil monitoring process.