Period

Drop in water level

With-drawal for water supply

Total lake loss

Seepage loss 0.07 m/month

Evapo. loss from pan

Lake evapo. loss

Evapo. loss without treatment

Evapo. loss during treatment period

Saving in evaporation loss due to treatment

(F)

(W)

(F-W)

(S)

(P)

(P*0.70)

(F-W-S)

m

m

m

m

m

m

m

m

m

%

16-Dec-85 to 31-Dec-85

0.30

0.23

0.07

0.03

0.07

0.05

0.05

0.04

0.01

18.37

Jan-86

0.53

0.37

0.16

0.07

0.16

0.11

0.11

0.09

0.02

19.64

Feb-86

0.39

0.21

0.18

0.07

0.20

0.14

0.14

0.11

0.03

21.43

Mar-86

0.43

0.18

0.25

0.07

0.31

0.22

0.22

0.18

0.04

17.05

Apr-86

0.43

0.17

0.26

0.07

0.34

0.24

0.24

0.19

0.05

20.17

May-86

0.45

0.17

0.28

0.07

0.37

0.26

0.26

0.21

0.05

18.92

Average saving in evaporation loss (%)

19.26