BAND BOUNDARY

BIOLOGICAL BAND

DESCRIPTION

Impairment Level

WATER STATUS

Water Quality

EDOT Score

ASPT Score

≤50

≤5.0

Seriously Modified

Serious ecological impairment

Very poor water quality

51 to 75

5.1 to 6.0

Largely Modified

Large ecological impairment

Poor water quality

76 to 150

6.1 to 7.0

Moderately Modified

Moderate ecological impairment

Moderate water quality

151 to 225

7.1 to 8.0

Largely Natural

Slight ecological impairment

Good water quality

>225

>8.0

Natural

Little ecological impairment

High water quality