Phytoplankton (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





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OH

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PA



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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

Phytoplankton Stations
Average 2007 Score

• Poor (1.00-2.00)
O Fair-Poor (2.01 - 2.67)
O Fair (2.68 - 3.33)
O Fair-Good (3.34 - 4.00)
O Good (4.01 - 5.00)

Southern
Branch
Elizabeth River

River

Lynnhaven River
Norfol k

Lafayette River

0	12.5

1	¦ ¦ ¦

I—r

T

12.5

25

I ¦ ¦

50 Kilometers

j_l

i—

T

1	1

N

Created by KJH, 3/26/08

50 Miles

UTM Zone 18N, NAD 83

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