West Bengal Pollution Control Board
Water Quality Information System


FITNESS OF WATER QUALITY OF RIVER GANGA

SL No.LocationpHBOD (mg/l)Dissolved Oxygen (mg/l) Total Coliform (MPN/100ml)Fitness comment(s)
1Baharampur8.04 4.35 4.9 90000.0 Not Fit for Bathing
2Nabadweep8.33 1.15 4.6 23000.0 Not Fit for Bathing
3Khagra7.63 4.25 4.8 130000.0 Not Fit for Bathing
4Gorabazar8.31 4.15 4.8 130000.0 Not Fit for Bathing
5Tribeni8.15 1.2 4.6 130000.0 Not Fit for Bathing
6Sreerampore7.96 5.85 6.4 50000.0 Not Fit for Bathing
7Palta8.02 5.5 6.3 240000.0 Not Fit for Bathing
8Palta Shitalatala7.98 5.2 6.4 130000.0 Not Fit for Bathing
9Dakshineshwar7.57 3.05 4.7 49000.0 Not Fit for Bathing
10Howrah Shibpur7.48 2.7 4.5 170000.0 Not Fit for Bathing
11Garden Reach7.46 1.15 4.5 70000.0 Not Fit for Bathing
12Uluberia7.51 1.5 4.4 49000.0 Not Fit for Bathing
13Patikhali7.75 1.25 6.5 22000.0 Not Fit for Bathing
14Diamond Harbour7.38 1.4 4.6 11000.0 Not Fit for Bathing





Table 1. Designated-Best-Use Class of water Criteria
 
Drinking Water Source without conventional treatment but after disinfection ( A )
 
Total Coliforms Organism MPN/100ml shall be 50 or less
pH between 6.5 and 8.5
Dissolved Oxygen 6mg/l or more
Biochemical Oxygen Demand 5 days 20°C 2mg/l or less
 
Outdoor bathing (Organised) ( B )
 
Total Coliforms Organism MPN/100ml 500 or less
pH between 6.5 and 8.5
Dissolved Oxygen 5mg/l or more
Biochemical Oxygen Demand 5 days 20°C 3mg/l or less
 
Drinking water source with conventional treatment followed by disinfection ( C )
 
Total Coliforms Organism MPN/100ml 5000 or less
pH between 6 and 9
Dissolved Oxygen 4mg/l or more
Biochemical Oxygen Demand 5 days 20°C 3mg/l or less
 
Fish Culture and Wild life propagation ( D )
 
pH between 6.5 and 8.5
Dissolved Oxygen 4mg/l or more
Free Ammonia (as N) 1.2mg/l or less
 
Irrigation, Industrial Cooling or Controlled Waste disposal ( E )
 
pH between 6.0 and 8.5
Electrical Conductivity at 25°C micro mhos/cm Max. 2250
Sodium absorption Ratio Max. 27
Boron Max. 2mg/l
 
Below E
 
Not meeting A,B,C,D & E Criteria
 
Source: http://cpcb.nic.in/water-quality-criteria/