**4. Results and discussion**

## **4.1. In situ measurements interpretation**

The physicochemical parameters and overall hydrochemical data of Haffouz and BouHafna groundwater samples are presented in **Table 1**. Groundwater temperature values are relatively homogenous and vary from 19.9 to 25.3°C. The pH measurements range between 7.39 and 7.73 for Haffouz aquifer and between 7.01 and 7.74 for BouHafna aquifer. This may indicate a neutral to slightly alkaline pH but suitable for drinking and agricultural purposes. Electrical conductivity (EC) values, which vary in a wide range between 422 and 1623 μS/cm, are probably related to the signification variation of the TDS values that range from 203 to 1188 mg/l, respectively.


**Table 1.** In situ measurement and geochemical data of groundwater samples.
