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Table 6

Irrigation quality of groundwater based on sodium percentage

%NaClassificationSample numbersNumber of samplePercentage of samples
40–60 Very good 4, 7, 9, 10, 13, 16, 18, 20, 22, 26, 27, 28, 29, 30, 34, 35, 37, 33, 36, 39 19 45.93 
60–80 Good 2, 3, 5, 6, 8, 12, 14, 17, 19, 21, 23, 24, 25, 26, 31, 32 16 37.89 
20–40 Permissible 11, 38, 40, 41, 43, 45 9.68 
<20 Doubtful 1, 15, 42, 44 6.45 
>80 Unsuitable Nil   
 Total  45 100 
%NaClassificationSample numbersNumber of samplePercentage of samples
40–60 Very good 4, 7, 9, 10, 13, 16, 18, 20, 22, 26, 27, 28, 29, 30, 34, 35, 37, 33, 36, 39 19 45.93 
60–80 Good 2, 3, 5, 6, 8, 12, 14, 17, 19, 21, 23, 24, 25, 26, 31, 32 16 37.89 
20–40 Permissible 11, 38, 40, 41, 43, 45 9.68 
<20 Doubtful 1, 15, 42, 44 6.45 
>80 Unsuitable Nil   
 Total  45 100 
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