Watershed Quality Assessment Report | WATERS

Assessment Summary
Causes of Impairment
Probable Sources Contributing to Impairment
TMDL Alternatives by Cause of Impairment
Cumulative TMDLs by Pollutant

Delaware State Report
Other states that contain this watershed:
Virginia, Chincoteague Watershed
Maryland, Chincoteague Watershed

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Delaware, Chincoteague Watershed

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Assessment Summary for Reporting Year 2006
Delaware, Chincoteague Watershed

Description of this table
Click here to list Threatened and Impaired Waters Only

Waterbody Name	Waterbody ID	Location	Map	Waterbody Type	Size	Units	Status	State TMDL Development Status
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Assawoman Bay	DE350-E01_00	Assawoman Bay	Waterbody Map	Estuary	.6	Square Miles	Impaired	TMDL needed
Atlantic Coast	DE400-001_00	Atlantic Ocean	Waterbody Map	Coastal Waters	25.0	Miles	Good
Betts Pond	DE140-L02_00	Indian River Bay	Waterbody Map	Freshwater Lake	80.0	Acres	Impaired	TMDL completed
Betts Pond Branch	DE140-010_00	Indian River Bay	Waterbody Map	River	23.8	Miles	Impaired	TMDL needed
Blackwater Creek	DE140-002_00	Indian River Bay	Waterbody Map	River	13.8	Miles	Impaired	TMDL needed
Bunting'S Branch	DE070-001_00	Buntings Branch	Waterbody Map	River	11.1	Miles	Impaired	TMDL completed
Burton Pond	DE280-L01_00	Rehoboth Bay	Waterbody Map	Freshwater Lake	33.0	Acres	Impaired	TMDL completed
Deep Branch, Including Peterkins Br., White Oak Swamp Ditch,	DE140-008_00	Indian River Bay	Waterbody Map	River	26.1	Miles	Impaired	TMDL needed
Dirickson Creek	DE180-003_00	Little Assawoman Bay	Waterbody Map	River	31.0	Miles	Impaired	TMDL needed
Eli Walls Tax Ditch	DE140-007_00	Indian River Bay	Waterbody Map	River	12.7	Miles	Impaired	TMDL needed
From The Headwaters Of Chapel Br. To The Confluence Of	DE280-001_01	Rehoboth Bay	Waterbody Map	River	29.8	Miles	Impaired	TMDL needed
Indian River	DE140-004_00	Indian River Bay	Waterbody Map	River	9.4	Miles	Impaired	TMDL completed
Ingram Pond	DE140-L03_00	Indian River Bay	Waterbody Map	Freshwater Lake	48.0	Acres	Impaired	TMDL needed
Iron Branch	DE150-001_00	Iron Branch	Waterbody Map	River	27.4	Miles	Impaired	TMDL needed
Jefferson Creek And Dead End Lagoons	DE180-004_00	Little Assawoman Bay	Waterbody Map	River	5.2	Miles	Impaired	TMDL needed
Lewes-Rehoboth Canal	DE170-001_00	Lewes-Rehoboth Canal	Waterbody Map	River	14.1	Miles	Impaired	TMDL needed
Little Assawoman Bay	DE180-E01_00	Little Assawoman Bay	Waterbody Map	Estuary	3.0	Square Miles	Impaired	TMDL completed
Little Assawoman Canal	DE180-001_00	Little Assawoman Bay	Waterbody Map	River	8.8	Miles	Impaired	TMDL needed
Love Creek	DE280-002_00	Rehoboth Bay	Waterbody Map	River	21.5	Miles	Impaired	TMDL needed
Lower Indian River Bay	DE140-E01_00	Indian River Bay	Waterbody Map	Estuary	13.0	Square Miles	Impaired	TMDL needed
Miller Creek	DE180-002_00	Little Assawoman Bay	Waterbody Map	River	12.0	Miles	Impaired	TMDL needed
Millsboro Pond	DE140-L01_00	Indian River Bay	Waterbody Map	Freshwater Lake	126.0	Acres	Impaired	TMDL completed
Mirey Branch, Including Sheep Pen Ditch, And Narrow Drain	DE140-009_00	Indian River Bay	Waterbody Map	River	23.5	Miles	Impaired	TMDL needed
Morris Mill Pond	DE140-L04_00	Indian River Bay	Waterbody Map	Freshwater Lake	44.0	Acres	Impaired	TMDL needed
Pepper Creek And Tributaries, Including Vines Creek, Mccrays	DE140-003_00	Indian River Bay	Waterbody Map	River	69.3	Miles	Impaired	TMDL needed
Rehoboth Bay	DE280-E01_00	Rehoboth Bay	Waterbody Map	Estuary	12.0	Square Miles	Impaired	TMDL needed
Stockley Branch	DE140-006_00	Indian River Bay	Waterbody Map	River	12.1	Miles	Impaired	TMDL needed
Swan Creek	DE140-005_00	Indian River Bay	Waterbody Map	River	8.6	Miles	Impaired	TMDL needed
Upper Indian River Bay	DE140-E02_00	Indian River	Waterbody Map	Estuary	1.0	Square Miles	Impaired	TMDL needed
White Creek	DE140-001_00	Indian River Bay	Waterbody Map	River	11.2	Miles	Impaired	TMDL needed

NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Waterbody Name	Waterbody ID	Location	Map	Waterbody Type	Size	Units	Status	State TMDL Development Status
Assawoman Bay	DE350-E01_00	Assawoman Bay	Waterbody Map	Estuary	.6	Square Miles	Impaired	TMDL needed
Betts Pond	DE140-L02_00	Indian River Bay	Waterbody Map	Freshwater Lake	80.0	Acres	Impaired	TMDL completed
Betts Pond Branch	DE140-010_00	Indian River Bay	Waterbody Map	River	23.8	Miles	Impaired	TMDL needed
Blackwater Creek	DE140-002_00	Indian River Bay	Waterbody Map	River	13.8	Miles	Impaired	TMDL needed
Bunting'S Branch	DE070-001_00	Buntings Branch	Waterbody Map	River	11.1	Miles	Impaired	TMDL completed
Burton Pond	DE280-L01_00	Rehoboth Bay	Waterbody Map	Freshwater Lake	33.0	Acres	Impaired	TMDL completed
Deep Branch, Including Peterkins Br., White Oak Swamp Ditch,	DE140-008_00	Indian River Bay	Waterbody Map	River	26.1	Miles	Impaired	TMDL needed
Dirickson Creek	DE180-003_00	Little Assawoman Bay	Waterbody Map	River	31.0	Miles	Impaired	TMDL needed
Eli Walls Tax Ditch	DE140-007_00	Indian River Bay	Waterbody Map	River	12.7	Miles	Impaired	TMDL needed
From The Headwaters Of Chapel Br. To The Confluence Of	DE280-001_01	Rehoboth Bay	Waterbody Map	River	29.8	Miles	Impaired	TMDL needed
Indian River	DE140-004_00	Indian River Bay	Waterbody Map	River	9.4	Miles	Impaired	TMDL completed
Ingram Pond	DE140-L03_00	Indian River Bay	Waterbody Map	Freshwater Lake	48.0	Acres	Impaired	TMDL needed
Iron Branch	DE150-001_00	Iron Branch	Waterbody Map	River	27.4	Miles	Impaired	TMDL needed
Jefferson Creek And Dead End Lagoons	DE180-004_00	Little Assawoman Bay	Waterbody Map	River	5.2	Miles	Impaired	TMDL needed
Lewes-Rehoboth Canal	DE170-001_00	Lewes-Rehoboth Canal	Waterbody Map	River	14.1	Miles	Impaired	TMDL needed
Little Assawoman Bay	DE180-E01_00	Little Assawoman Bay	Waterbody Map	Estuary	3.0	Square Miles	Impaired	TMDL completed
Little Assawoman Canal	DE180-001_00	Little Assawoman Bay	Waterbody Map	River	8.8	Miles	Impaired	TMDL needed
Love Creek	DE280-002_00	Rehoboth Bay	Waterbody Map	River	21.5	Miles	Impaired	TMDL needed
Lower Indian River Bay	DE140-E01_00	Indian River Bay	Waterbody Map	Estuary	13.0	Square Miles	Impaired	TMDL needed
Miller Creek	DE180-002_00	Little Assawoman Bay	Waterbody Map	River	12.0	Miles	Impaired	TMDL needed
Millsboro Pond	DE140-L01_00	Indian River Bay	Waterbody Map	Freshwater Lake	126.0	Acres	Impaired	TMDL completed
Mirey Branch, Including Sheep Pen Ditch, And Narrow Drain	DE140-009_00	Indian River Bay	Waterbody Map	River	23.5	Miles	Impaired	TMDL needed
Morris Mill Pond	DE140-L04_00	Indian River Bay	Waterbody Map	Freshwater Lake	44.0	Acres	Impaired	TMDL needed
Pepper Creek And Tributaries, Including Vines Creek, Mccrays	DE140-003_00	Indian River Bay	Waterbody Map	River	69.3	Miles	Impaired	TMDL needed
Rehoboth Bay	DE280-E01_00	Rehoboth Bay	Waterbody Map	Estuary	12.0	Square Miles	Impaired	TMDL needed
Stockley Branch	DE140-006_00	Indian River Bay	Waterbody Map	River	12.1	Miles	Impaired	TMDL needed
Swan Creek	DE140-005_00	Indian River Bay	Waterbody Map	River	8.6	Miles	Impaired	TMDL needed
Upper Indian River Bay	DE140-E02_00	Indian River	Waterbody Map	Estuary	1.0	Square Miles	Impaired	TMDL needed
White Creek	DE140-001_00	Indian River Bay	Waterbody Map	River	11.2	Miles	Impaired	TMDL needed

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Causes of Impairment for Reporting Year 2006

Delaware, Chincoteague

Description of this table

Cause of Impairment	Size of Assessed Waters with Listed Causes of Impairment
NOTE: Click on the underlined "Cause of Impairment" value to see a listing of those waters with that cause of impairment.
Cause of Impairment	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Bays and Estuaries (Square Miles)	Coastal Shoreline (Miles)
Enterococcus Bacteria	366.2	44.0	26.5
Phosphorus, Total	366.2	287.0	26.0
Nitrate/Nitrite (Nitrite + Nitrate as N)	32.6		28.0
Nitrogen, Total	355.1	287.0	1.0
Organic Enrichment (Sewage) Biological Indicators	11.1		28.0
Solids (Suspended/Bedload)	9.4		12.0
Temperature, Water	9.4		1.0
Total Kjehldahl Nitrogen (TKN)	32.6		28.0

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Probable Sources Contributing to Impairments for Reporting Year 2006

Delaware, Chincoteague Watershed

Description of this table

Probable Source	Size of Assessed Waters with Probable Sources of Impairments
Probable Source	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Bays and Estuaries (Square Miles)	Coastal Shoreline (Miles)
Agriculture	202.8		12.0
Industrial Point Source Discharge	23.8
Municipal Point Source Discharges	37.3		25.0
Natural Sources	69.3		3.0
On-Site Treatment Systems (Septic Systems And Similar Decencentralized Systems)	158.6		13.0
Source Unknown	62.5		3.0

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TMDL Alternatives by Cause of Impairment for Reporting Year 2006

Delaware, Chincoteague Watershed

Description of this table

Cause of Impairment	Number of TMDL Alternatives	Rivers and Streams (Miles)
NOTE: Click on the underlined "Number of TMDL Alternatives by Cause of Impairment " value to see a listing of those Causes of Impairment.
Nitrate/Nitrite (Nitrite + Nitrate as N)	1	11
Organic Enrichment (Sewage) Biological Indicators	1	11
Phosphorus, Total	1	11
Total Kjehldahl Nitrogen (TKN)	1	11

Total: 4 TMDL Alternatives

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Cumulative TMDLs by Pollutant

Delaware, Chincoteague Watershed

This chart includes TMDLs since October 1, 1995.

Description of this table

Pollutant	Number of TMDLs Completed	Number of Causes of Impairment Addressed
NOTE: Click on the underlined "Number of TMDLs Completed" value to see a listing of those approved TMDLs for the pollutant.
Phosphorus	25	25
Bacteria	24	24
Nitrogen	23	23
Dissolved Oxygen	11	11
Temperature	2	2

Total: 85 TMDLs; 0 Causes of Impairment

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Delaware, Chincoteague Watershed

Features

Assessment Summary for Reporting Year 2006Delaware, Chincoteague Watershed

Causes of Impairment for Reporting Year 2006

Delaware, Chincoteague

Probable Sources Contributing to Impairments for Reporting Year 2006

Delaware, Chincoteague Watershed

TMDL Alternatives by Cause of Impairment for Reporting Year 2006

Delaware, Chincoteague Watershed

Cumulative TMDLs by Pollutant

Delaware, Chincoteague Watershed

Assessment Summary for Reporting Year 2006
Delaware, Chincoteague Watershed