Surface water table levels in 2015,2014,2013,2012,2011,2005 and 2007 in Poitou-Charentes (surface)
Description
This map illustrates, through the operation of the daily surveys of relevant piezometric stations (selection of 44 reference piezometers established in collaboration with the BRGM), the average level of surface water in the reference month (see date of revision) compared to the average monthly levels of the same table for the same months of previous years (statistics based on historicals most initiated in the early 1990s).