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Table 2

The WQI classification for drinking purposes

ClassificationGroundwater quality
WQI < 25 Excellent groundwater 
25 < WQI < 50 Good groundwater 
50 < WQI < 75 Poor groundwater 
75 < WQI < 100 Very poor groundwater 
WQI > 100 Unsuitable groundwater 
ClassificationGroundwater quality
WQI < 25 Excellent groundwater 
25 < WQI < 50 Good groundwater 
50 < WQI < 75 Poor groundwater 
75 < WQI < 100 Very poor groundwater 
WQI > 100 Unsuitable groundwater 
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