Wet season (May, 2015)

Dry season (September, 2015)

Parameters

Min

Max

Mean

St.dev

Min

Max

Mean

St.dev

T (˚C)

9.0

13.1

10.5

0.41

11.0

18.1

13.8

0.32

pH

6.8

8.2

7.6

0.26

7.1

8.2

7.9

0.19

EC (µs/cm)

1210

1910

1501

180.0

1800

1968

1903

37.1

DO (mg/l)

3.4

6.6

5.8

0.18

4.0

6.9

5.4

0.11

Ca²⁺ (mg/l)

102.1

150.3

126.3

0.6

150.6

182.3

166.3

0.2

Mg²⁺ (mg/l)

43.6

71.4

54.8

0.6

66.9

79.6

73.9

0.3

Na⁺ (mg/l)

71.3

135.7

92.1

0.8

103.2

135.7

131.1

0.4

K⁺ (mg/l)

15.7

35.2

23.5

0.1

36.2

47.3

43.1

0.1

${\text{HCO}}_3^{-}$ (mg/l)

262.3

475.8

341.6

1.1

451.4

481.9

475.8

0.17

Cl⁻ (mg/l)

50.2

195.3

163.5

0.4

184.6

215.6

209.2

0.20

${\text{NO}}_3^{-}$ (mg/l)

130.2

198.4

161.5

0.3

179.8

243.6

223.3

0.23

${\text{SO}}_4^{2-}$ (mg/l)

91.2

187.2

110.4

0.6

188.6

154.8

191.5

0.21

TDS (mg/l)

772

1241

942

136.2

1155

1264

1218

34.21