Résumé:
Most of the water we consume, comes from various underground and surface sources, contains,
in its raw state, mineral and organic substances, some of which can be harmful to health. The
objective of this work is to study the physico-chemical quality of groundwater and surface water
intended for drinking water supply in the city of Ain-Defla.
In this context, a detailed analysis of several physicochemical parameters characterizing
drinking water was carried out at the Algerian Water Laboratory (ADE) of Ain Defla during
the period (April-June) of the year. 2021. This work was carried out on the water samples from
the three boreholes (Arib F1, Arib F2, F. Hadj Sadouk) and four (04) samples for the surface
water of the Sidi M'hamed be Taiba dam (SMBT) in different depths (5m-10m-15m), in the
raw state and downstream of the treatment station.
The hydrogeochemical study shows that the chemical facies of the waters analyzed is
chlorinated, sulphated calcium and magnesian according to the classification of Piper.
In general, it can be concluded, from the results obtained, that the physicochemical
characteristics of groundwater and surface water (SMBT dam) intended for the drinking water
supply (AEP) of the city of Ain Defla are generally acceptable. On the other hand, the water
from the F1 Arib borehole seems generally mediocre with values that do not meet Algerian
drinking water standards.
