Spatial and Temporal Variations of Water Quality of Mateur Aquifer (Northeastern Tunisia): Suitability for Irrigation and Drinking Purposes

Table 4

Water Quality Index (WQI) ranges and percentage of samples during wet and dry seasons.

WQI range	Water quality	Wet season	Dry season
<50	Excellent	12.50	10
50–100	Good	40	45
100–200	Poor	35.50	35
200–300	Very poor	5	2.50
>300	Unsuitable for domestic purposes	7.50	7.50