The salinity distribution in a breakthrough valley has been studied based on field observations and using a numerical model. The studied valley is located in Northern France between the Saint Omer basin and the Flemish coastal plain. The field campaign starts with the installation of observation wells. https://www.diegojavierfares.com/limited-offer-Apple-iPad-3-Screen-Protector-Verizon-4G-3rd-Gen-super-value/