MAL065 - Ta' Kalc 1


Ta’ Kalc is a cluster of artificially constructed reservoirs, intended for irrigation and water storage, located in western Malta within Dingli. The reservoirs were constructed out of cement and cover an approximate area of 1,110m2. The site is accessible by the public through a dirt road. The reservoir is predominantly surrounded by agricultural land, with pipelines scattered throughout nearby fields, indicating that the reservoirs are likely being used for irrigation. A single Ceratonia siliqua is present growing within the basin of the eastern reservoir. This reservoir borders the Coastal Cliffs Area of Ecological Importance, Area of High Landscape Value and Special Area of Conservation – International Importance.

Wetland data

Basic information
Wetland location: Inland
Wetland type: Artificial
Wetland area: 0.10 Ha
Hydrological interaction: -  
Water salinity: Fresh (< 0.5 g/l)
Type of fresh water input: Catchment area (precipitation)
Surface water runoff Outflow controlled by pipeline
Open water area (%): > 95
Hydroperiod: Permanent
Geographic information
Census district: Western
Island: Malta
Local council: Had-Dingli
Longitude: 14.374460 East
Latitude: 35.859420 North
Biological significance
Biological significance: Low
Ramsar wetland type
Type Coverage (%)
6 -- Water storage areas; reservoirs/barrages/dams/impoundments (generally over 8 ha)
Property status
Protection statuses
Protection status category Protection status subcategory Area's name Code Coverage area (%) Legislation
International Important Bird and Biodiversity Areas Il-Kullana to ta' Gifen Cliffs MT008 100
Important bird areas
IBA code Site name Coverage (%) References
MT008 Il-Kullana to ta' Gifen Cliffs 100
Ecosystem services
Type of ecosystem service Ecosystem service Scale of Βenefit (%) Importance
Provisioning services Food
Provisioning services Fresh water
Supporting services Provision of habitat
Activities on wetland
Activity Intensity
020 = Resource conservation High
130 = Irrigation Medium
701 = water pollution Medium
Activities on catchment area
Activity Intensity
100 = Cultivation Medium
110 = Use of pesticides Medium
120 = Fertilisation Medium
130 = Irrigation Medium
401 = continuous urbanisation Low
402 = discontinuous urbanisation Low
430 = Agricultural structures Low
502 = roads motorways Low
701 = water pollution Medium
Impact Intensity
EE- = Increase of economic potential High
ES- = Increase in water supply Medium
PF- = Fertilizer/Excess nutrient pollution Medium
PP- = Pesticide pollution
Vegetation types
Type Coverage (%)
Shrubby / Arborescent 5 - 25
Emergent < 5
Species Presence status References
Ceratonia siliqua