| Parameters |
Range |
Class |
No. of samples |
Percentage of samples |
| Post-monsoon |
Pre-monsoon |
Post-monsoon |
Pre-monsoon |
SAR
(Richards 1954) |
<20 |
Excellent |
17 |
17 |
100.00 |
100.00 |
| 20-40 |
Good |
0 |
0 |
0 |
0 |
| 40-60 |
Permissible |
0 |
0 |
0 |
0 |
| 60-80 |
Doubtful |
0 |
0 |
0 |
0 |
| >80 |
Unsafe |
0 |
0 |
0 |
0 |
EC
WHO (2008) |
<250 |
Excellent |
6 |
5 |
35.29 |
29.41 |
| 250-750 |
Good |
7 |
8 |
41.18 |
47.06 |
| 750-2000 |
Permissible |
4 |
4 |
23.53 |
23.53 |
| 2000–3000 |
Doubtful |
0 |
0 |
0 |
0 |
| >3000 |
Unsuitable |
0 |
0 |
0 |
0 |
TH
(Sawyer and McCarty, 1967) |
<75 |
Soft |
0 |
1 |
0 |
5.88 |
| 75-150 |
Moderate |
3 |
5 |
17.65 |
29.41 |
| 150-300 |
Hard |
3 |
7 |
17.65 |
41.18 |
| >300 |
Very Hard |
11 |
4 |
64.71 |
23.53 |
RSC
(Raghunath 1987) |
<1.25 |
Safe |
15 |
16 |
88.24 |
94.12 |
| 1.25-2.50 |
Marginally suitable |
2 |
0 |
11.76 |
00 |
| >2.50 |
Unsuitable |
0 |
1 |
0 |
5.88 |
MAR
(Raghunath 1987) |
<50 |
Suitable |
2 |
7 |
11.76 |
41.18 |
| >50 |
Unsuitable |
15 |
10 |
88.24 |
58.8 |
SSP
(Todd 1980) |
<200 |
Suitable |
17 |
17 |
100.0 |
100.0 |
| >200 |
Unsuitable |
0 |
0 |
0 |
0 |
KR
(Kelly 1963) |
<1.0 |
Suitable |
17 |
17 |
100.0 |
100.0 |
| >1.0 |
Unsuitable |
0 |
0 |
0 |
0 |
PI
(Doneen 1964) |
<80 |
Good |
16 |
13 |
94.12 |
76.47 |
| 80-100 |
Moderate |
1 |
1 |
5.88 |
5.88 |
| 100-120 |
Poor |
0 |
3 |
0 |
17.65 |
WQI
(Horton 1965) |
0-25 |
Excellent |
2 |
3 |
11.76 |
17.65 |
| 26-50 |
Good |
11 |
7 |
64.71 |
41.18 |
| 51-75 |
Poor |
4 |
6 |
23.53 |
32.29 |
| 76-100 |
Very Poor |
0 |
1 |
0 |
5.88 |
| > 100 |
Unfit for Drinking |
0 |
0 |
0 |
0 |
|
