Water Quality and Biological Indices for the Susquehanna River Basin

Tools
Water Quality Index Scores
Very Poor
(<31)
Poor
(31-43)
Fair
(43-62)
Good
(62-85)
Excellent
(>85)
0 50 100
0 50 100
0 50 100
Very Poor
(<31)
Poor
(31-43)
Fair
(43-62)
Good
(62-85)
Excellent
(>85)
0 50 100
0 50 100
0 50 100
Chesapeake Bay Benthic Index of Biological Integrity
Very Poor Poor Fair Good Excellent
Reference Layers