DESIGNATED BEST USE CLASSIFICATION OF INLAND SURFACE WATER

DESIGNATED BEST USE CLASSIFICATION OF INLAND SURFACE WATER

CLASS	DESIGNATED BEST USE	CRITERIA
A	Drinking water source without conventional treatment but after disinfection	pH : 6.5 to 8.5 Dissolved Oxygen : 6 mg/l or more Biochemical Oxygen Demand : 2 mg/l or Total Coliform : 50 MPN/100 ml
B	Outdoor bathing (Organised)	Ph : 6.5 to 8.5 Dissolved Oxygen : 5 mg/l or more Biochemical Oxygen Demand 5 days 20^o C 3 mg/l or Less Fecal Coliform Organism MPN/100ml shall be 2500(lmax permissible),or 1000(desirable)
C	Drinking water source with conventional treatment followed by disinfection	pH : 6.5 to 8.5 Dissolved Oxygen : 4 mg/l or more Biochemical Oxygen Demand : 3 mg/l or Total Coliform : 5000 MPN/ml
D	Propagation of wild life and fisheries	pH : 6.5 to 8.5 Dissolved Oxygen : 4 mg/l or more Free Ammonia : 12 mg/l
E	Irrigation, industrial cooling and controlled waste disposal	pH : 6.0 to 8.5 Electrical Conductivity : 2250  mhos/cm Sodium Absorption Ratio: 26 Boron : 2 mg/l

MPN Most Probable Number