Classes

Total Bacteria/ml

Fecal Coliforms/ml

Fecal Streptococci/ml

5

<2000

<100

<5

4

2000 - 9000

100 - 500

5 - 10

3

9000 - 45,000

500 - 2500

10 - 50

2

45,000 - 360,000

2500 - 20,000

50 - 500

1

>360,000

>20,000

>500