Parameters
Weight (wi)
Unit weight (Wi)
Quality rating (qi)
Sub index( SI
i
)
QI
pH
4
0.235
120.57
28.33
DO
4
0.235
138.33
32.50
BOD
5
3
0.176
014.00
02.46
MPN
4
0.235
040.00
09.40
TDS
2
0.117
024.48
02.86
∑w
i
=17
∑W
i
=0.998
∑ SI
i
=75.55
75.55
Table 4:
Quality index for Tenughat Dam.
