There are 66 aquifers of local and national importance in Cyprus. The great majority of them are phreatic aquifers developed in river or coastal alluvial deposits. These form the largest and the most dynamic aquifers replenished mainly by river flows and rainfall. There are three large coastal aquifers which include the beds of all rivers discharging into the sea. The coastal parts of these aquifers consist of sands, silts, limestones, conglomerates and clays. The riverbeds consist of alluvial deposits, gravels, sands and silts. These aquifers are phreatic roughly 30m deep. With the exception of the large but not very productive aquifer developed in the Troodos igneous rocks all other aquifers exist in gypsum, sandstones, limestones and chalks. These are mainly phreatic which in many cases they exhibit semi-confined and/or confined segments covered by silty-clayey layers and/or marls and sandy marls. Regarding the Troodos Range aquifer this has developed in low permeability ophiolites and in fractured zones of igneous rocks of medium permeability causing it to be confined in parts.
It should be noted that River Basin Management Plans for Cyprus (Water Framework Directive 2000/60/EC) are developed for groundwater bodies which comprise groups of aquifers of similar hudrogeological/hydraulic characteristics, type, quantitative and qualitative status, pressures and uses.
Map of Aquifers of Cyprus.pdf