Category

Parameters

Rating

Weight Factor

Health hazard

Total coliform

4

0.114

Cadmium

3

0.086

Cyanide

3

0.086

Mercury

3

0.086

Selenium

3

0.086

Arsenic

4

0.113

Fluoride

3

0.086

Nitrate-nitrogen

3

0.086

Operational

Dissolved oxygen

4

0.114

Monitoring

pH

1

0.029

Oxygen

BOD5

2

0.057

Depletion

Total phosphorus

2

0.057