In this project, researchers develop and test a mobile phone application, which can be used to locate and describe boreholes and monitor groundwater levels over time. Data collected are stored in an online database accessible to users. One of the main innovations of the application lies in the data quality assurance approach, which relies on a dynamic system of user star rating reflecting confidence that can be placed in the data they provide. The App is also designed to provide incentives for consultants to upload the data they collect, through a system of data credit reflecting their contribution to the system and determining how much data they can download in return. The application has been successfully tested on a local pilot study, with a small group of volunteers, but questions remain concerning the possibility to upscale it at regional, basin or national level.