Water Quality Criteria

Designated Best Use

Parameters affecting

Quality Criteria

A.

Drinking Water
Source, without conventional treatment but after disinfection

1. Coliform MNP
2. Turbidity
3. Colour
4. BOD
5. DO
6. Toxicants (including           pesticides)
7. Plate Count
8. Floating Matter
9. Taste or Odour
 

<50/100
<10 units
<10 units
<2mg/l
>6 mg/l
No acute toxicity to be present
<50/100ml
Absent
Not perceptible

B.

Bathing, Swimming and Recreation

1. Coliform MNP  
2. Turbidity  
3. Colour  
4. BOD  
5. DO  
6. Toxicants (including           pesticides)  
7. Floating Matter  
8. Taste or Odour  

<500/100 ml  
<25 units  
<10 units  
<3mg/l  
>5mg/l  
No acute toxicity to be present Not perceptible
Not perceptible 
 

C.

Drinking Water Source after conventional treatment

1. Coliform MNP  
2. Colour  
3. BOD  
4. DO  
5. Toxicants

<5000/100 ml  
<25 units  
<3mg/l  
>4 mg/l  
No acute toxicity to be present 

D.

Propagation of Wild Life Fisheries

1. Coliform MNP  
2. BOD  
3. DO  
4. Toxicants

<5000/100 ml  
<6mg/l  
>4 mg/l  
No acute toxicity to be present 

E.

Irrigation, Industrial Cooling and Controlled waste disposal

1. TDS  
2. (Ca + Mg)  
3. Sodium Ratio  
4. Chlorides  
5. Boron   

<1000 mg/l  
<100 mg/l units  
< 0.5  
<250 mg/l  
<2 mg/l