1. © The Author(s) 2015. Published by Science and Education Publishing.
Table 4. The Water Quality Index of Ground water in control stations during post monsoon
Parameters
Concentration of parameters (mg/l)
(Ci)
Weightage
(wi)
Relative weight
(Wi)
Standard Concentration (mg/l)
(Si)
Quality Rating
(qi)
Sub Index (SIi)
TDS
342.00 4
0.13
500
68.4
9.1
Chloride
64.00 3
0.10
250
25.6
2.6
Total hardness
114.00
300
38.0
3.8
Calcium 2
0.07 75
85.3
5.7
Magnesium
28.00 30
93.3
6.2
Nitrate
32.00 5
0.17 45
71.1
11.9
Sulphate
36.00
200
18.0
2.4
Fluoride
0.58 1
58.0
7.7
Alkalinity
186.00
93.0
9.3
WQI= 58.7
Anju Anilkumar et al. Effect of Municipal Solid Waste Leachate on Ground Water Quality of Thiruvananthapuram District,
Kerala, India. Applied Ecology and Environmental Sciences, 2015, Vol. 3, No. 5, doi: /aees-3-5-5
© The Author(s) Published by Science and Education Publishing.