Water is one of the essential materials used for life sustainability.Â
WATER QUALITY PARAMETERS AND BIS STANDARDS FOR VARIOUS CHEMICAL AND BIOLOGICAL CONSTITUENTS
S.No.
Parameters
Drinking waterIS 10500 : 2012
Permissible Limit
Maximum Limit
1
Odor
Agreeable
2
Taste
3
pH
6.5 to 8.5
No relaxation
4
TDS (mg/l)
500
2000
5
Hardness (as CaCO3) (mg/l)
200
600
6
Alkalinity (as CaCO3) (mg/l)
7
Nitrate (mg/l)
45
8
Sulfate (mg/l)
400
9
Fluoride (mg/l)
1.5
10
Chloride (mg/l)
250
1000
11
Turbidity (NTU)
12
Arsenic (mg/l)
0.01
0.05
13
Copper (mg/l)
14
Cadmium (mg/l)
0.003
15
Chromium (mg/l)
16
Lead (mg/l)
17
Iron (mg/l)
0.3
18
Zinc (mg/l)
19
Fecal Coliform (cfu)
0
20
E. Coli (cfu)
WATER QUALITY PARAMETERS AND BIS STANDARDS FOR VARIOUS CHEMICAL AND BIOLOGICAL CONSTITUENTS
S.No.
Parameters
Drinking water
IS 10500 : 2012
Permissible Limit
Maximum Limit
1
Odor
Agreeable
Agreeable
2
Taste
Agreeable
Agreeable
3
pH
6.5 to 8.5
No relaxation
4
TDS (mg/l)
500
2000
5
Hardness (as CaCO3) (mg/l)
200
600
6
Alkalinity (as CaCO3) (mg/l)
200
600
7
Nitrate (mg/l)
45
No relaxation
8
Sulfate (mg/l)
200
400
9
Fluoride (mg/l)
1
1.5
10
Chloride (mg/l)
250
1000
11
Turbidity (NTU)
5
10
12
Arsenic (mg/l)
0.01
0.05
13
Copper (mg/l)
0.05
1.5
14
Cadmium (mg/l)
0.003
No relaxation
15
Chromium (mg/l)
0.05
No relaxation
16
Lead (mg/l)
0.01
No relaxation
17
Iron (mg/l)
0.3
No relaxation
18
Zinc (mg/l)
5
15
19
Fecal Coliform (cfu)
0
0
20
E. Coli (cfu)
0
0