Conductivity class mm・hr⁻¹

Number of tests

%

% runoff

0 - 5

11

31

16

5.1 - 10

8

23

29

10.1 - 15

7

20

41

15.1 - 20

4

11

50

20.1 - 25

3

9

58

25.1 - 30

2

6

64