TI

Chl

P

SD

Trophic Class

<30 - 40

0 - 2.6

0 - 12

>8 - 4

Oligotrophic

40 - 50

2.6 - 20

12 - 24

4 - 2

Mesotrophic

50 - 70

20 - 56

24 - 96

2 - 0.5

Eutrophic

70 - 100+

56 - 155+

96 - 384+

0.5 ≤ 0.25

Hypereutrophic