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Virginia State Report
Other states that contain this watershed:
District Of Columbia, Middle Potomac-Anacostia-Occoquan Watershed
Maryland, Middle Potomac-Anacostia-Occoquan Watershed
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Virginia, Middle Potomac-Anacostia-Occoquan Watershed
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Listed Waters for Reporting Year 2010
Virginia, Middle Potomac-Anacostia-Occoquan Watershed
Description of this table
| NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report. | ||||||||
| Waterbody Name | Waterbody ID | Location | Waterbody Type | Size | Units | State TMDL Development Status | ||
|---|---|---|---|---|---|---|---|---|
| Accotink Creek | VA-A15R-01-PCB | Segment Begins At The Confluence With Calamo Branch And Continues Downstream Until The Tidal Waters Of Accotink Bay. | River | miles | ||||
| Accotink Creek | VA-A15R-01-BEN | Begins At The Outlet Of Lake Accotink And Continues Downstream Until The Tidal Waters Of Accotink Bay. | River | miles | ||||
| Accotink Creek | VA-A15R-04-BEN | Begins At The Headwaters Of Accotink Creek And Continues Downstream Until The Start Of Lake Accotink. | River | miles | ||||
| Big Rocky Run | VA-A22R-02-BEN | Begins At The Confluence With An Unnamed Tributary To Big Rocky Run, At Approximately Rivermile 4.03, And Continues Downstream Until The Confluence With Cub Run. | River | miles | ||||
| Broad Run, Difficult Run, Goose Creek, Pimmit Run | VA-A08R-01-PCB | Includes The Following Tributaries Between The Virginia/Maryland State Line Near The Route 340 Bridge (Loudoun County) To The I-395 Bridge In Arlington County (Above The Woodrow Wilson Bridge): Goose Creek Up To The Dulles Greenway Road Bridge, Broad Run | River | miles | ||||
| Bull Run | VA-A21R-01-PCB | Includes Bull Run Near Manassas Park From The I-66 Bridge Downstream Approximately Fourteen Miles To The Route 612 (Yates Ford Road) Bridge. | River | miles | ||||
| Cameron Run/Hunting Creek | VA-A13R-03-BAC | Begins At The Confluence With Backlick Run And Continues Downstream Until The Mouth Of The Embayment, At Jones Point And Belle View. | River | miles | ||||
| Dogue Creek | VA-A14E-02-BAC | Includes All Tidal Waters Of Dogue Creek, Extending From Approximately Rivermile 2.1 Until The Confluence With The Potomac River. | Estuary | square miles | ||||
| Flatlick Branch | VA-A22R-01-BEN | Begins At The Confluence With Frog Branch And Continues Downstream Until The Confluence With Cub Run. | River | miles | ||||
| Fourmile Run | VA-A12E-01-BAC | Segment Includes The Tidal Waters Of Fourmile Run; From Rivermile 1.46 Downstream Until The Confluence With The Potomac River, At The State Line. Portion Of Cbp Segment Pottf. | Estuary | square miles | ||||
| Fourmile Run | VA-A12E-01-CDANE | Includes The Tidal Waters Of Fourmile Run; From Rivermile 1.46 Downstream Until The Confluence With The Potomac River, At The State Line. | Estuary | square miles | ||||
| Holmes Run | VA-A13R-03-BEN | Begins At The Headwaters Of Holmes Run And Continues Downstream Until The Start Of Lake Barcroft. | River | miles | ||||
| Holmes Run | VA-A13R-02-BAC | Begins At The Mouth Of Lake Barcroft And Continues Downstream Until The Confluence With Backlick Run. | River | miles | ||||
| Indian Run | VA-A13R-01-PCB | Includes The Entire Portion Of Indian Run, From The Headwaters Until The Confluence With Backlick Run. | River | miles | ||||
| Lake Accotink | VA-A15L-01-HG | Includes All Of Lake Accotink. | Reservoir | acres | ||||
| Lake Accotink | VA-A15L-01-PCB | Includes All Of Lake Accotink. | Reservoir | acres | ||||
| Little Hunting Creek | VA-A14E-01-BAC | Includes All Tidal Waters Of Little Hunting Creek, Extending From Approximately Rivermile 1.7 Downstream Until The Confluence With The Potomac River. | Estuary | square miles | ||||
| Little Ricky Run | VA-A23R-03-BEN | Begins At The Confluence With Willow Springs And Continues Downstream Until The Confluence With Bull Run. | River | miles | ||||
| Long Branch | VA-A15R-05-BEN | Begins At The Confluence With An Unnamed Tributary To Long Branch, At The Route 651 (Guinea Road) Bridge, And Continues Downstream Until The Confluence With Accotink Creek, At Rivermile 14.32 Just Below Braddock Road. | River | miles | ||||
| Lucky Run | VA-A18R-02-BEN | Begins At The Headwaters Of Lucky Run And Continues Downstream Until The Confluence With Cedar Run. | River | miles | ||||
| Mills Branch | VA-A25R-02-BAC | Begins At The Headwaters Of Mills Branch And Continues Downstream Until The Confluence With The Occoquan River. | River | miles | ||||
| Neabsco Creek | VA-A25E-02-BAC | Includes The Tidal Waters Of Neabsco Bay Downstream Until The Confluence With Occoquan Bay. | Estuary | square miles | ||||
| Occoquan River | VA-A25E-04-EBEN | Extends 0.5 Mile Around Coastal 2000 Monitoring Station 1aocc002.62. | Estuary | square miles | ||||
| Occoquan River | VA-A25E-03-BAC | Extends From 0.5 Rivermile Upstream Of Monitoring Station 1aocc006.99 Until 0.5 Rivermile Downstream Of Monitoring Station 1aocc006.64. | Estuary | square miles | ||||
| Paul Springs Branch | VA-A14R-01-BEN | Begins At The Headwaters Of Paul Spring Branch And Continues Downstream Until The Confluence With North Branch. | River | miles | ||||
| Paul Springs Branch | VA-A14R-01-BAC | Begins At The Headwaters Of Paul Spring Branch And Continues Downstream Until The Confluence With North Branch. | River | miles | ||||
| Pimmit Run | VA-A12R-03-HEPOXID | Begins At The Confluence With Little Pimmit Run, Approximately 0.1 Rivermile Downstream From Route 695, And Continues Downstream Until The Confluence With The Potomac River. | River | miles | ||||
| Pimmit Run | VA-A12R-03-CDANE | Begins At The Confluence With Little Pimmit Run, Approximately 0.1 Rivermile Downstream From Route 695, And Continues Downstream Until The Confluence With The Potomac River. | River | miles | ||||
| Pimmit Run | VA-A12R-02-BAC | Begins At The Headwaters Of Pimmit Run, Approximately 0.12 Rivermile Upstream From Route 7, And Continues Downstream Until The Confluence With The Potomac River. | River | miles | ||||
| Pohick Creek | VA-A16E-01-BZOKFL | Includes Tidal Waters Of Pohick Creek Upstream From The Boundary Of Watershed A16. | Estuary | square miles | ||||
| Pohick Creek | VA-A16R-02-BAC | Begins At The Confluence With Sideburn Branch And Continues Downstream Until The Confluence With An Unnamed Tributary To Pohick Creek, At Rivermile 14.18. | River | miles | ||||
| Pohick Creek | VA-A16R-01-BAC | Begins At The Confluence With South Run, Approximately 0.25 Rivermile Upstream From I-95, And Continues Downstream Until The End Of The Free-Flowing Portion Of Pohick Creek. | River | miles | ||||
| Pohick Creek | VA-A15E-01-BAC | Extends From Rivermile 1.31 In Gunston Cove Until The Confluence With The Potomac River. | Estuary | square miles | ||||
| Sandy Run | VA-A24R-02-BAC | Begins At The Headwaters Of Sandy Run And Continues Downstream Until The End Of The Free-Flowing Waters At The Inundated Waters Of The Occoquan Reservoir. | River | miles | ||||
| Tripps Run | VA-A13R-04-BEN | Begins At The Headwaters Of Tripps Run And Continues Downstream Until The Start Of Lake Barcroft. | River | miles | ||||
| Wolf Run | VA-A24R-01-BAC | Begins At The Confluence With Maple Branch And Continues Downstream Until The End Of The Free-Flowing Waters At The Inundated Waters Of The Occoquan Reservoir. | River | miles | ||||
Causes of Impairment for Reporting Year 2010
Virginia, Middle Potomac-Anacostia-Occoquan
Description of this table| Cause of Impairment | Number of Causes Reported |
|---|---|
| Escherichia Coli (E. Coli) | 13 |
| Benthic Macroinvertebrates Bioassessments | 10 |
| PCB(s) in Fish Tissue | 5 |
| Chlordane | 2 |
| Fecal Coliform | 2 |
| Benzo[k]fluoranthene | 1 |
| Estuarine Bioassessments | 1 |
| Heptachlor Epoxide | 1 |
| Mercury in Fish Tissue | 1 |
Cumulative TMDLs by Pollutant
Virginia, Middle Potomac-Anacostia-Occoquan Watershed
This chart includes TMDLs since October 1, 1995.
Description of this table
| NOTE: Click on the underlined "Number of TMDLs Completed" value to see a listing of those approved TMDLs for the pollutant. | ||
| Pollutant | Number of TMDLs Completed | Number of Causes of Impairment Addressed |
|---|---|---|
| Escherichia Coli (E. Coli) |  11 |
11 |
| Ammonia | 7 |
7 |
| Polychlorinated Biphenyls (PCBs) | 7 |
7 |
| Fecal Coliform | 4 |
4 |
| Pollutants in Urban Stormwater | 3 |
3 |
| Benzene | 2 |
2 |
| Sediment | 2 |
2 |
| Bacterial Slimes | 1 |
1 |
| Benthic | 1 |
1 |
| Ethylbenzene | 1 |
1 |
| Naphthalene | 1 |
1 |
| PCBs in Sediment | 1 |
1 |
| Toluene | 1 |
1 |
| Total Residual Chlorine | 1 |
1 |
| Xylene | 1 |
1 |
Total: 44 TMDLs; 0 Causes of Impairment
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