Reporting Region Summary:

Scores & Conceptual Diagram

	Bay Health Index	23%*
Incomplete assessment (*score based on average of 4 indicators) Improved dissolved oxygen compared to 2006. Worse scores for phytoplankton community and chlorophyll a compared to 2006.

	Index/Indicator	Score			Index/Indicator	Score
	Chlorophyll a	18%			Aquatic grasses	No Growth Zone
	Dissolved oxygen	73%			Benthic Index of Biotic Integrity	Insuff. Data
	Water clarity	0%			Phytoplankton Index of Biotic Integrity	0%
	Water Quality Index	30%			Biotic Index	Insuff. Data

Excel Spreadsheet

Editable Vector Diagram (SVG)

Maps

This indicator map is already zoomed to the area of this region. You can pan and zoom and also change to another indicator map.

Trends Graph

This graph is dynamic, you can check and uncheck indicators ( checkboxes in legend), select year range ( click and drag), and export as an image (right click).

Editable Vector Version (SVG)

Excel Spreadsheet

Region Info

The Elizabeth River watershed drains approximately 200 square miles of land and flows into the mouth of the James River. The main branch of the estuary is approximately 5 mi long and 2 mi wide at its mouth. Land use on the watershed is predominantly urban with the Cities of Norfolk and Portsmouth flanking the main tributaries.

Editable Vector Version (SVG)

Additional Info

Relevant Websites

The Elizabeth River Project
Virginia Tributary Strategies
Chesapeake Bay Program - Tributary Strategies