Benthic Habitat (Index of Biological Integrity) (2007)

Annual Average Score by Sampling Station



Chesapeake Bay Program
A Watershed Partnership

C&D Canal

Baltimore

Upper Chester
River

Upper Potomac River

Richmond

Upper James River —

Appomattox River

This Map Shows 31 Sampling Stations

Data Sources: Chesapeake Bay Program

For more information, visit www.chesapeakebay.riet
Disciaimer: www.chesapeakebay.netAermsofuse.htm

Ontario





r nyj

OH

* ,



PA



wy



)-MD

DCr

KnjJ



VA







NC



Atlantic
Ocean

Upper Nanticoke River

Salisbury

Upper Rappahannock River

Middle Rappahannock River

Upper Pamunkey River

Upper Pocomoke River

Middle Pocomoke River

2007 Benthic IBI Stations
Average Annual Score

# Severely Degraded (<= 2.0)
O Degraded (2.1 - 2.6)
O Marginal (2.7 - 2.9)
O Meets Goal (>= 3.0)

Southern
Branch
Elizabeth River

River

Lynnhaven River
Norfol k

Lafayette River

0	12.5

1	¦ ¦ ¦

I—r

T

12.5

25

I ¦ ¦

T

25

50 Kilometers

j_l

Created by KJH, 3/26/08

50 Miles M

UTM Zone 18N, NAD 83

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