Irrigation water permeability problems are likely to occur in soils if irrigation water salinity (ECw) is low. The following table can be used to predict whether permeability problems will develop in the irrigated soils.
| Salinity of Irrigation Water (ECw) | Degree of Problem |
| 0.0 – 0.2 | High |
| 0.2 – 0.5 | Moderate |
| greater than 0.5 | None |