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On This Page 303(d) Listed Waters for 2008

Data are also available for these cycles:
2002 2004 2006 2010

Waterbody Changes from Prior Cycle

For More Information:

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Virginia Water Quality Assessment Report

Assessed Waters of Virginia by Watershed

Select a watershed from the list:
or click on the map to choose a watershed:
Search for a waterbody within Virginia
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Display impaired waters and TMDL information only



Site-specific Targeted Monitoring Summary Results

Virginia (2008)

Description of this table
 
    5,330.6 18,125.1 123.1
       629.8 9,604.5 28.2
   
                     
                     
                     
                     
    10,542.8 94,043.7 2,181.7
           1,608.1          
                     
           590.6     691.4     
           8,344.2     93,352.3     2,181.7
              2,350.2     2,633.3     21.7
                    5,993.9           90,719.1           2,160.0
15,873.4 112,168.8 2,304.8
50,414.9 149,982.0 2,500.0
31.5 74.8 92.2

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2008


Site-specific Targeted Monitoring Results

Virginia Rivers and Streams 2008

Description of this table

All
Rivers and Streams

50,414.9 Miles of Rivers and Streams

Assessed 15,873.4
Unassessed 34,541.5
Total Miles 50,414.9







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Description of this table

Assessed
Rivers and Streams

15,873.4 Miles of
Assessed Rivers and Streams

Good 5,330.6
Threatened .0
Impaired 10,542.8
Total Miles Assessed 15,873.4







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Description of this table

Threatened and Impaired
Rivers and Streams

10,542.8 Miles of
Threatened and Impaired
Rivers and Streams

3,958.3
.0
590.6
5,993.9
Total Threatened and Impaired 10,542.8

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Virginia Rivers and Streams 2008

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 14,141.9 70.6 .0 29.4 color.gifcolor.gif
Fish Consumption 4,721.7 55.8 .0 44.2 color.gifcolor.gif
Public Water Supply 1,434.3 99.8 .0 .2 color.gifcolor.gif
Recreation 11,042.7 33.1 .0 66.9 color.gifcolor.gif
Wildlife 12,066.3 99.7 .0 .3 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Virginia Rivers and Streams 2008

Description of this table
Escherichia Coli (E. Coli) Pathogens color.gif 5,979.2
Fecal Coliform Pathogens color.gif 2,183.4
Benthic Macroinvertebrates Bioassessments Cause Unknown - Impaired Biota color.gif 1,683.1
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 1,509.5
Mercury in Fish Tissue Mercury color.gif 1,344.4
pH pH/Acidity/Caustic Conditions color.gif 1,289.6
PCB(s) in Fish Tissue Polychlorinated Biphenyls (PCBs) color.gif 1,018.2
Temperature, Water Temperature color.gif 384.4
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 41.6
DDE Pesticides color.gif 19.4
DDT Pesticides color.gif 19.4
Heptachlor Epoxide Pesticides color.gif 14.2
Lead Metals (other than Mercury) color.gif 12.6
Copper Metals (other than Mercury) color.gif 10.2
Zinc Metals (other than Mercury) color.gif 9.0
Aldrin Pesticides color.gif 6.1
Cadmium Metals (other than Mercury) color.gif 5.4
Polychlorinated Biphenyls (PCBs) Polychlorinated Biphenyls (PCBs) color.gif 2.9
Ammonia, Un-ionized Ammonia color.gif 2.6
Chlordane Pesticides color.gif 2.2
Nitrogen, Nitrate Nutrients color.gif 2.2

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Site-specific Targeted Monitoring Results

Probable Sources
Virginia Rivers and Streams 2008

Description of this table
Source Unknown Unknown color.gif 5,371.4
Wildlife Other Than Waterfowl Natural/Wildlife color.gif 3,001.6
Non-Point Source Unspecified Nonpoint Source color.gif 1,883.7
Natural Conditions - Water Quality Standards Use Attainability Analyses Needed Natural/Wildlife color.gif 1,866.8
Livestock (Grazing Or Feeding Operations) Agriculture color.gif 1,796.8
Unspecified Domestic Waste Municipal Discharges/Sewage color.gif 1,237.4
Agriculture Agriculture color.gif 1,130.5
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems) Municipal Discharges/Sewage color.gif 985.7
Wastes From Pets Urban-Related Runoff/Stormwater color.gif 675.2
Municipal (Urbanized High Density Area) Urban-Related Runoff/Stormwater color.gif 533.6
Atmospheric Deposition - Toxics Atmospheric Deposition color.gif 508.4
Grazing In Riparian Or Shoreline Zones Agriculture color.gif 503.8
Wet Weather Discharges (Non-Point Source) Urban-Related Runoff/Stormwater color.gif 467.3
Rural (Residential Areas) Other color.gif 423.7
Animal Feeding Operations (Nps) Agriculture color.gif 292.9
Waterfowl Natural/Wildlife color.gif 261.5
Sewage Discharges In Unsewered Areas Municipal Discharges/Sewage color.gif 257.1
Loss Of Riparian Habitat Habitat Alterations (Not Directly Related To Hydromodification) color.gif 240.1
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 204.7
Atmospheric Deposition - Acidity Atmospheric Deposition color.gif 197.5
Contaminated Sediments Legacy/Historical Pollutants color.gif 195.5
Runoff From Forest/Grassland/Parkland Other color.gif 185.3
Industrial Point Source Discharge Industrial color.gif 174.7
Sediment Resuspension (Clean Sediment) Hydromodification color.gif 158.4
Impacts From Land Application Of Wastes Land Application/Waste Sites/Tanks color.gif 141.1
Streambank Modifications/Destabilization Hydromodification color.gif 139.3
Discharges From Municipal Separate Storm Sewer Systems (Ms4) Urban-Related Runoff/Stormwater color.gif 137.8
Sanitary Sewer Overflows (Collection System Failures) Municipal Discharges/Sewage color.gif 91.9
Surface Mining Resource Extraction color.gif 67.4
Residential Districts Urban-Related Runoff/Stormwater color.gif 64.5
Dam Or Impoundment Hydromodification color.gif 64.1
Septage Disposal Municipal Discharges/Sewage color.gif 60.3
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 52.8
Combined Sewer Overflows Municipal Discharges/Sewage color.gif 50.1
Post-Development Erosion And Sedimentation Hydromodification color.gif 44.5
Manure Runoff Agriculture color.gif 42.3
Coal Mining Resource Extraction color.gif 32.8
Drought-Related Impacts Natural/Wildlife color.gif 29.9
Acid Mine Drainage Resource Extraction color.gif 27.1
Clean Sediments Hydromodification color.gif 24.5
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso) Municipal Discharges/Sewage color.gif 24.1
Coal Mining (Subsurface) Resource Extraction color.gif 23.4
Industrial/Commercial Site Stormwater Discharge (Permitted) Urban-Related Runoff/Stormwater color.gif 22.3
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 20.6
Channelization Hydromodification color.gif 19.6
Unspecified Urban Stormwater Urban-Related Runoff/Stormwater color.gif 16.1
Silviculture Harvesting Silviculture (Forestry) color.gif 14.8
Sediment Resuspension (Contaminated Sediment) Hydromodification color.gif 14.8
Illicit Connections/Hook-Ups To Storm Sewers Municipal Discharges/Sewage color.gif 12.6
Crop Production (Crop Land Or Dry Land) Agriculture color.gif 12.3
Impervious Surface/Parking Lot Runoff Urban-Related Runoff/Stormwater color.gif 12.2
Rangeland Grazing Agriculture color.gif 10.9
Channel Erosion/Incision From Upstream Hydromodifications Hydromodification color.gif 10.9
Natural Sources Natural/Wildlife color.gif 9.8
Inappropriate Waste Disposal Spills/Dumping color.gif 9.7
Upstream Impoundments (E.G., Pl-566 Nrcs Structures) Hydromodification color.gif 9.7
Managed Pasture Grazing Agriculture color.gif 7.5
Erosion From Derelict Land (Barren Land) Hydromodification color.gif 7.5
Mine Tailings Resource Extraction color.gif 6.0
Unpermitted Discharge (Domestic Wastes) Municipal Discharges/Sewage color.gif 5.6
Site Clearance (Land Development Or Redevelopment) Construction color.gif 4.8
Landfills Land Application/Waste Sites/Tanks color.gif 4.5
Commercial Districts (Industrial Parks) Industrial color.gif 3.4
Aquaculture (Permitted) Aquaculture color.gif 3.0
Package Plant Or Other Permitted Small Flows Discharges Municipal Discharges/Sewage color.gif 2.6
Lake Fertilization Other color.gif 2.3
Leaking Underground Storage Tanks Land Application/Waste Sites/Tanks color.gif 1.5

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Site-specific Targeted Monitoring Results

Virginia Lakes, Reservoirs, and Ponds 2008

Description of this table

All
Lakes, Reservoirs, and Ponds

149,982.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 112,168.8
Unassessed 37,813.2
Total Acres 149,982.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

112,168.8 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good 18,125.1
Threatened .0
Impaired 94,043.7
Total Acres Assessed 112,168.8







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

94,043.7 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

2,633.3
.0
691.4
90,719.1
Total Threatened and Impaired 94,043.7

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Virginia Lakes, Reservoirs, and Ponds 2008

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 111,793.8 46.8 .0 53.2 color.gifcolor.gif
Fish Consumption 96,134.3 20.0 .0 80.0 color.gifcolor.gif
Public Water Supply 73,025.5 100.0 .0 .0 color.gif
Recreation 101,292.5 95.0 .0 5.0 color.gifcolor.gif
Wildlife 106,331.7 99.5 .0 .5 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Virginia Lakes, Reservoirs, and Ponds 2008

Description of this table
PCB(s) in Fish Tissue Polychlorinated Biphenyls (PCBs) color.gif 72,289.4
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 58,477.0
Mercury in Fish Tissue Mercury color.gif 38,492.7
pH pH/Acidity/Caustic Conditions color.gif 5,132.2
Escherichia Coli (E. Coli) Pathogens color.gif 5,061.1
Copper Metals (other than Mercury) color.gif 574.1
Temperature, Water Temperature color.gif 99.5
Zinc Metals (other than Mercury) color.gif 26.4
Cadmium Metals (other than Mercury) color.gif 26.4
Lead Metals (other than Mercury) color.gif 26.4

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Site-specific Targeted Monitoring Results

Probable Sources
Virginia Lakes, Reservoirs, and Ponds 2008

Description of this table
Source Unknown Unknown color.gif 91,409.3
Natural Conditions - Water Quality Standards Use Attainability Analyses Needed Natural/Wildlife color.gif 4,258.8
Dam Or Impoundment Hydromodification color.gif 1,686.8
Wildlife Other Than Waterfowl Natural/Wildlife color.gif 1,290.2
Unspecified Domestic Waste Municipal Discharges/Sewage color.gif 1,290.2
Atmospheric Deposition - Toxics Atmospheric Deposition color.gif 1,161.6
Livestock (Grazing Or Feeding Operations) Agriculture color.gif 1,025.6
Residential Districts Urban-Related Runoff/Stormwater color.gif 952.4
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems) Municipal Discharges/Sewage color.gif 940.1
Changes In Ordinary Stratification And Bottom Water Hypoxia/Anoxia Natural/Wildlife color.gif 913.9
Municipal (Urbanized High Density Area) Urban-Related Runoff/Stormwater color.gif 897.8
Wet Weather Discharges (Non-Point Source) Urban-Related Runoff/Stormwater color.gif 410.5
Atmospheric Deposition - Acidity Atmospheric Deposition color.gif 399.6
Sanitary Sewer Overflows (Collection System Failures) Municipal Discharges/Sewage color.gif 350.1
Rural (Residential Areas) Other color.gif 102.9
Animal Feeding Operations (Nps) Agriculture color.gif 102.9
Natural Sources Natural/Wildlife color.gif 93.1
Non-Point Source Unspecified Nonpoint Source color.gif 88.4
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 26.4

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Site-specific Targeted Monitoring Results

Virginia Bays and Estuaries 2008

Description of this table

All
Bays and Estuaries

2,500.0 Square Miles of Bays and Estuaries

Assessed 2,304.8
Unassessed 195.2
Total Square Miles 2,500.0







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Description of this table

Assessed
Bays and Estuaries

2,304.8 Square Miles of
Assessed Bays and Estuaries

Good 123.1
Threatened .0
Impaired 2,181.7
Total Square Miles Assessed 2,304.8







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Description of this table

Threatened and Impaired
Bays and Estuaries

2,181.7 Square Miles of
Threatened and Impaired
Bays and Estuaries

21.7
.0
.0
2,160.0
Total Threatened and Impaired 2,181.7

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Virginia Bays and Estuaries 2008

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 2,248.3 4.1 .0 95.9 color.gifcolor.gif
Deep-Channel Seasonal Refuge 253.5 .0 .0 100.0 color.gif
Deep-Water Aquatic Life 451.6 2.6 .0 97.4 color.gifcolor.gif
Fish Consumption 2,105.9 1.8 .0 98.2 color.gifcolor.gif
Open-Water Aquatic Life 1,759.8 4.5 .0 95.5 color.gifcolor.gif
Public Water Supply 5.9 100.0 .0 .0 color.gif
Recreation 576.5 84.9 .0 15.1 color.gifcolor.gif
Shallow-Water Submerged Aquatic Vegetation 2,128.9 10.0 .0 90.0 color.gifcolor.gif
Shellfishing 1,997.4 95.1 .0 4.9 color.gifcolor.gif
Wildlife 387.7 77.8 .0 22.2 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Virginia Bays and Estuaries 2008

Description of this table
PCB(s) in Fish Tissue Polychlorinated Biphenyls (PCBs) color.gif 2,062.8
Aquatic Plants (Macrophytes) Noxious Aquatic Plants color.gif 1,916.3
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 1,856.2
Estuarine Bioassessments Cause Unknown - Impaired Biota color.gif 388.3
Chlorophyll-A Algal Growth color.gif 202.0
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 140.9
Fecal Coliform Pathogens color.gif 98.1
Enterococcus Bacteria Pathogens color.gif 47.1
Escherichia Coli (E. Coli) Pathogens color.gif 36.6
Tributylin TBT (Tributylstanne) Toxic Organics color.gif 11.2
Nutrient/Eutrophication Biological Indicators Nutrients color.gif 8.2
Mercury in Fish Tissue Mercury color.gif 7.8
pH pH/Acidity/Caustic Conditions color.gif 6.5
Sediment Bioassays for Estuarine and Marine Water Total Toxics color.gif 1.5
Benzo[k]fluoranthene Toxic Organics color.gif .7

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Site-specific Targeted Monitoring Results

Probable Sources
Virginia Bays and Estuaries 2008

Description of this table
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 2,117.1
Industrial Point Source Discharge Industrial color.gif 2,117.0
Source Unknown Unknown color.gif 2,106.1
Agriculture Agriculture color.gif 2,090.8
Loss Of Riparian Habitat Habitat Alterations (Not Directly Related To Hydromodification) color.gif 2,090.8
Atmospheric Deposition - Nitrogen Atmospheric Deposition color.gif 2,090.8
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso) Municipal Discharges/Sewage color.gif 2,090.8
Internal Nutrient Recycling Natural/Wildlife color.gif 2,090.8
Sources Outside State Jurisdiction Or Borders Other color.gif 2,090.3
Clean Sediments Hydromodification color.gif 1,916.3
Sediment Resuspension (Clean Sediment) Hydromodification color.gif 1,916.3
Wet Weather Discharges (Non-Point Source) Urban-Related Runoff/Stormwater color.gif 282.1
Non-Point Source Unspecified Nonpoint Source color.gif 260.6
Natural Conditions - Water Quality Standards Use Attainability Analyses Needed Natural/Wildlife color.gif 141.8
Contaminated Sediments Legacy/Historical Pollutants color.gif 36.2
Discharges From Municipal Separate Storm Sewer Systems (Ms4) Urban-Related Runoff/Stormwater color.gif 24.0
Atmospheric Deposition - Toxics Atmospheric Deposition color.gif 12.1
Shipbuilding, Repairs, Drydocking Commercial Harbor And Port Activities color.gif 11.2
Other Shipping Releases (Wastes And Detritus) Commercial Harbor And Port Activities color.gif 11.2
Combined Sewer Overflows Municipal Discharges/Sewage color.gif 7.9
Natural Sources Natural/Wildlife color.gif 7.9
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems) Municipal Discharges/Sewage color.gif 6.9
Municipal (Urbanized High Density Area) Urban-Related Runoff/Stormwater color.gif 6.9
Changes In Ordinary Stratification And Bottom Water Hypoxia/Anoxia Natural/Wildlife color.gif 3.9
Waterfowl Natural/Wildlife color.gif .0
Crop Production (Crop Land Or Dry Land) Agriculture color.gif .0
Runoff From Forest/Grassland/Parkland Other color.gif .0
Wildlife Other Than Waterfowl Natural/Wildlife color.gif .0
Livestock (Grazing Or Feeding Operations) Agriculture color.gif .0
Marina/Boating Sanitary On-Vessel Discharges Recreational Boating And Marinas color.gif .0
Animal Feeding Operations (Nps) Agriculture color.gif .0
Sanitary Sewer Overflows (Collection System Failures) Municipal Discharges/Sewage color.gif .0
Pipeline Breaks Spills/Dumping color.gif .0

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Virginia Causes of Impairment for Reporting Year 2008


Description of this table
NOTE: Click on the underlined Cause of Impairment Group to see a list of specific state causes of impairment making up the Cause of Impairment Group. See also Pollution categories summary document (PDF) (20 pp, 557K, About PDF) for brief, non-technical descriptions of general cause categories.
Size of Assessed Waters with Listed Causes of Impairment
Algal Growth 202.0
Ammonia 2.6
Cause Unknown - Impaired Biota 1,683.1 388.3
Mercury 1,344.4 38,492.7 7.8
Metals (other than Mercury) 17.4 574.1
Noxious Aquatic Plants 1,916.3
Nutrients 2.2 8.2
Organic Enrichment/Oxygen Depletion 1,509.5 58,477.0 1,856.2
Pathogens 7,383.2 5,061.1 161.4
Pesticides 30.6
pH/Acidity/Caustic Conditions 1,289.6 5,132.2 6.5
Polychlorinated Biphenyls (PCBs) 1,021.1 72,289.4 2,062.8
Salinity/Total Dissolved Solids/Chlorides/Sulfates 41.6 140.9
Temperature 384.4 99.5
Total Toxics 1.5
Toxic Organics 11.9

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Virginia Probable Sources Contributing to Impairments
for Reporting Year 2008

Description of this table
NOTE: Click on the underlined Probable Source Group to see a list of specific state Probable Sources making up the Probable Source Group.
Size of Assessed Waters with Probable Sources of Impairments
Agriculture 3,358.6 1,128.5 2,090.8
Aquaculture 3.0
Atmospheric Deposition 705.9 1,561.2 2,095.2
Commercial Harbor And Port Activities 11.2
Construction 4.8
Habitat Alterations (Not Directly Related To Hydromodification) 240.1 2,090.8
Hydromodification 354.1 1,686.8 1,916.3
Industrial 178.1 2,117.0
Land Application/Waste Sites/Tanks 147.1
Legacy/Historical Pollutants 195.5 36.2
Municipal Discharges/Sewage 1,953.3 1,290.2 2,117.1
Natural/Wildlife 4,736.3 6,495.8 2,118.2
Other 611.3 102.9 2,090.3
Recreational Boating And Marinas .0
Resource Extraction 171.4 26.4
Silviculture (Forestry) 14.8
Spills/Dumping 9.7 .0
Unknown 5,371.4 91,409.3 2,106.1
Unspecified Nonpoint Source 1,883.7 88.4 260.6
Urban-Related Runoff/Stormwater 1,481.6 1,653.0 299.1

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Virginia TMDL Alternatives by Cause of Impairment 2008


Description of this table

NOTE: Click on the underlined "Number of TMDL Alternatives by Cause of Impairment " value to see a listing of those Causes of Impairment.
Dissolved Oxygen color.gif 2 6 1,381
Lead color.gif 1 7  

Total: 3 TMDL Alternatives

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Virginia Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards

Description of this table
NOTE: Click on the underlined "Number of Waters Attaining" value for a detailed list of those previously 303(d)-listed waters now attaining all applicable water quality standards.
2009 color.gif 13 21
2011 color.gif 81 98

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Virginia Causes of Impairment for 303(d) Listed Waters

Description of this table
NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment.
Pathogens color.gif 1,443
Organic Enrichment/Oxygen Depletion color.gif 977
Polychlorinated Biphenyls (PCBs) color.gif 821
Noxious Aquatic Plants color.gif 775
pH/Acidity/Caustic Conditions color.gif 162
Mercury color.gif 155
Cause Unknown - Impaired Biota color.gif 77
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 56
Temperature color.gif 52
Pesticides color.gif 26
Algal Growth color.gif 25
Metals (other than Mercury) color.gif 11
Nutrients color.gif 9
Total Toxics color.gif 3
Toxic Organics color.gif 2
Ammonia color.gif 2

Total: 4,596 Causes of Impairment

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Virginia Cumulative TMDLs by Pollutant

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant.
Number of Causes of
Impairment Addressed
Fecal Coliform color.gif 337 339
Escherichia Coli (E. Coli) color.gif 307 323
Ammonia color.gif 147 147
Pathogens color.gif 108 110
Sediment color.gif 102 103
Polychlorinated Biphenyls (PCBs) color.gif 77 77
Nitrogen, Total color.gif 43 43
Phosphorus, Total color.gif 43 43
Enterococcus Bacteria color.gif 36 36
Total Suspended Solids (TSS) color.gif 36 36
Mercury color.gif 26 26
Phosphorus color.gif 22 24
Total Dissolved Solids (TDS) color.gif 18 18
Dissolved Oxygen color.gif 16 16
Total Kjehldahl Nitrogen (TKN) color.gif 13 13
Carbonaceous Bod (CBOD) color.gif 10 10
Benthic color.gif 9 9
Copper color.gif 8 8
Tributyltin color.gif 8 8
Temperature color.gif 7 7
Cyanide color.gif 6 6
Organic Enrichment color.gif 6 6
Polycyclic Aromatic Hydrocarbons (PAHs) (Aquatic Ecosystems) color.gif 6 6
Zinc color.gif 6 6
Biochemical Oxygen Demand (BOD) color.gif 4 4
Chlorine color.gif 4 4
Fecal color.gif 4 5
Nitrogen color.gif 4 4
Pentachlorophenol (PCP) color.gif 4 4
Pollutants in Urban Stormwater color.gif 4 6
Whole Effluent Toxicity (WET) color.gif 4 4
pH color.gif 4 4
Chlorides color.gif 3 3
Fecal Bacteria color.gif 3 3
PCBs in Sediment color.gif 3 3
Total Residual Chlorine color.gif 3 3
Aluminum color.gif 2 2
Benzene color.gif 2 2
Di-2-Ethylhexyl Phthalate color.gif 2 2
Lead color.gif 2 2
Nitrate color.gif 2 2
Shellfish Harvesting Advisory color.gif 2 2
Silver color.gif 2 2
Aldrin color.gif 1 1
Alkalinity color.gif 1 1
Arsenic color.gif 1 1
Bacterial Slimes color.gif 1 1
Cadmium color.gif 1 1
Chloride color.gif 1 1
Chlorine, Residual (Chlorine Demand) color.gif 1 1
Chloroform color.gif 1 1
Chromium, Hexavalent color.gif 1 1
Chromium, Total color.gif 1 1
DDT color.gif 1 1
Dioxin color.gif 1 1
Eldrin color.gif 1 1
Endrin color.gif 1 1
Ethylbenzene color.gif 1 1
Iron color.gif 1 1
Manganese color.gif 1 1
Metals (other than Mercury) color.gif 1 1
Naphthalene color.gif 1 1
Nickel color.gif 1 1
Organic Enrichment/Low Dissolved Oxygen color.gif 1 1
Toluene color.gif 1 1
Xylene color.gif 1 1

Total: 1,478 TMDLs; 1,504 Causes of Impairment Addressed


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Virginia Cumulative Number of TMDLs

EPA Fiscal Year starts October 1 and ends September 30.


Description of this table
NOTE: Click on the underlined "Number of TMDLs Completed" value for a detailed list of the TMDLs for the fiscal year.
1998 color.gif 4 4
1999 color.gif 1 1
2000 color.gif 1 1
2001 color.gif 26 26
2002 color.gif 180 180
2003 color.gif 96 96
2004 color.gif 118 118
2005 color.gif 17 17
2006 color.gif 219 220
2007 color.gif 64 66
2008 color.gif 138 138
2009 color.gif 87 87
2010 color.gif 199 209
2011 color.gif 198 202
2012 color.gif 31 31
2013 color.gif 46 46
2014 color.gif 37 42
2015 color.gif 16 20

Total: 1,478 TMDLs; 1,504 Causes of Impairment Addressed

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