HCOV_0800, Ieperian Aquifer Area of Conservation

Flanders is made up of an alternation of aquifers (sand, gravel, chalk, solid rock, ...) and regionally occurring non-aquifers (e.g. clay). The sequence of these aquifers and aquitards has its own coding in Flanders: the Hydrogeological Coding of the Subsurface of Flanders (HCOV-coding). The HCOV coding is made up of hydrogeological main, sub and base units. The main unit groups a sequence of geological layers that have broadly the same hydrogeological properties and thus form a single whole. This hydrogeological main unit is rather limited in size and contains the sands belonging to the Formation of Tielt. The Ieperian Aquifer is considered the main unit as it is of great hydrogeological importance in some parts of West and East Flanders, but is not further divided. This hydrogeological main unit is formed by the Sand of Egem and the Sand of Mont-Panisel, both belonging to the Member of Egem.