Hazard

Class

EC µS/cm

Quality

Season1

No %

Season2

No %

Season3

No %

Season4

No %

C0

0 - 100

Excellent

141

31.7

118

26.5

112

25.2

112

25.2

C1

101 - 250

Very Good

149

33.5

145

32.6

156

35.1

154

34.6

C2

251 - 750

Good

140

31.5

161

36.2

165

37.0

165

37.1

C3

751 - 2250

Doubtful

15

3.4

21

4.7

11

2.5

13

29.2

C4

>2250

Unsuitable

0

0

0

0

1

0.2

1

0.2