EPA Region 6

Relative Extent

Riparian Disturbance
Salinity
Acidification
Riparian Vegetative Cover
In-stream Fish Habitat
Streambed Sediments
Nitrogen
Phophorous

Relative Risk to
Macroinvertebrate
Taxa Loss (O/E)

r-

o

To 20

i r

30

40 50 0 1

-1	T"

5 6

-1

7

% of Stream Length Relative Risk Ratio
in Poor Condition

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