The Mesopotamian Plain hydrogeologically is
a semi-closed basin where most of the groundwater accumulates in the central
and southern parts of the plain. However, small part of the groundwater flows
out of the basin to the Gulf. This special character has significant effects on
the depth and type of the groundwater in the plain. The depth ranges from (<10
– 100)m; however, the depth in the most of the plain ranges from (10 – 20)m.
The type of the ground water is mainly salty water with concentrations of (10,000
– 50,000) mg/l; however, in the central part it is even Brine water (> 500,000
mg/l). No fresh groundwater exists in the plain.
salinity, depth to groundwater, aquifer.