The first known piezometric map in the world was published in 1856 in Belgium

To our current knowledge, the first piezometric map ever published in the world is the map of Gustave Dumont in February 1856. Gustave Dumont (1821-1891) was a cousin of the well-known geologist André Dumont (1809-1857). This oldest known piezometric map is showing piezometric levels (heads) in the chalk Hesbaye aquifer of the Geer basin near the city of Liège in Belgium. The map is included in a comprehensive report ordered by the city in 1855 to increase drinking water production with a large extension of drainage galleries in this aquifer. A long tradition of underground coal mining activit... Mehr ...