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On This Page 303(d) Listed Waters for 2010

Data are also available for these cycles:
2002 2004 2006 2008

Waterbody Changes from Prior Cycle

For More Information:

Texas Assessment Report Exit EPA Disclaimer
State Water Quality Program Exit EPA Disclaimer

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Texas Water Quality Assessment Report

Assessed Waters of Texas by Watershed

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



Site-specific Targeted Monitoring Summary Results

Texas (2010)

Description of this table
 
    13,225.7 900,088.0 4,320.9 6.6
       1,811.7 57,588.0
   
                               
                               
                               
                               
    10,320.7 561,908.7 1,690.0 388.2 68.3
           690.2     24,535.0     210.1          
           59.6                    
           18.7     232.8     .1          
           9,552.2     537,140.9     1,479.8     388.2     68.3
              551.3     .0     .0     .0     .0
                    9,000.9           537,140.9           1,479.8           388.2           68.3
23,546.4 1,461,996.6 6,010.8 388.2 74.9
191,228.0 1,994,600.0 2,393.0 Unavailable Unavailable
12.3 73.3 251.2 Unavailable Unavailable

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2010


Site-specific Targeted Monitoring Results

Texas Rivers and Streams 2010

Description of this table

All
Rivers and Streams

191,228.0 Miles of Rivers and Streams

Assessed 23,546.4
Unassessed 167,681.6
Total Miles 191,228.0







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Description of this table

Assessed
Rivers and Streams

23,546.4 Miles of
Assessed Rivers and Streams

Good 13,225.7
Threatened .0
Impaired 10,320.7
Total Miles Assessed 23,546.4







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Description of this table

Threatened and Impaired
Rivers and Streams

10,320.7 Miles of
Threatened and Impaired
Rivers and Streams

1,241.6
59.6
18.7
9,000.9
Total Threatened and Impaired 10,320.7

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Texas Rivers and Streams 2010

* 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 Use 19,410.7 88.8 .0 11.2 color.gifcolor.gif
Domestic Water Supply - Public Water Supply 6,655.7 100.0 .0 .0 color.gif
Fish Consumption Use 4,014.2 76.0 .0 24.0 color.gifcolor.gif
General Use 15,132.9 88.4 .0 11.6 color.gifcolor.gif
Primary Recreation/Swimming 16,734.6 57.8 .0 42.2 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Texas Rivers and Streams 2010

Description of this table
Bacteria Pathogens color.gif 7,107.7
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 1,954.2
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 1,325.2
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 989.9
PCB(s) in Fish Tissue Polychlorinated Biphenyls (PCBs) color.gif 640.8
Dioxin (Including 2,3,7,8-TCDD) Dioxins color.gif 521.0
Sulfates Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 489.3
Mercury in Fish Tissue Mercury color.gif 387.2
Impaired Fish Community Cause Unknown - Impaired Biota color.gif 211.6
Impaired Macrobenthos Community Cause Unknown - Impaired Biota color.gif 206.6
pH pH/Acidity/Caustic Conditions color.gif 176.3
Excess Algal Growth Algal Growth color.gif 92.5
Heptachlor Epoxide Pesticides color.gif 72.6
Chlordane in Fish Tissue Pesticides color.gif 72.6
Dieldrin Pesticides color.gif 72.6
DDE Pesticides color.gif 68.5
Selenium Metals (other than Mercury) color.gif 32.6
Nitrates Nutrients color.gif 27.9
Zinc Metals (other than Mercury) color.gif 26.0
Toxicity Total Toxics color.gif 17.3
Aluminum Metals (other than Mercury) color.gif 6.8
Sediment Toxicity Total Toxics color.gif 5.9
Chlorine Dioxide (As ClO2) Chlorine color.gif 5.0
Mercury in Water Column Mercury color.gif 2.5
Copper Metals (other than Mercury) color.gif 1.4

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Site-specific Targeted Monitoring Results

Probable Sources
Texas Rivers and Streams 2010

Description of this table
Non-Point Source Unspecified Nonpoint Source color.gif 5,960.9
Source Unknown Unknown color.gif 5,473.9
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 2,161.5
Natural Sources Natural/Wildlife color.gif 1,664.7
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 1,200.9
Sources Outside State Jurisdiction Or Borders Other color.gif 872.6
Agriculture Agriculture color.gif 855.1
Permitted Runoff From Confined Animal Feeding Operations (Cafos) Agriculture color.gif 739.1
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems) Municipal Discharges/Sewage color.gif 694.6
Upstream Source Other color.gif 639.3
Natural Conditions - Water Quality Standards Use Attainability Analyses Needed Natural/Wildlife color.gif 568.6
Sanitary Sewer Overflows (Collection System Failures) Municipal Discharges/Sewage color.gif 555.1
Wildlife Other Than Waterfowl Natural/Wildlife color.gif 483.7
Irrigated Crop Production Agriculture color.gif 470.0
Rangeland Grazing Agriculture color.gif 443.9
Flow Alterations From Water Diversions Hydromodification color.gif 392.5
Unrestricted Cattle Access Agriculture color.gif 386.1
Industrial Point Source Discharge Industrial color.gif 383.2
Grazing In Riparian Or Shoreline Zones Agriculture color.gif 370.8
Municipal (Urbanized High Density Area) Urban-Related Runoff/Stormwater color.gif 367.5
Atmospheric Deposition - Toxics Atmospheric Deposition color.gif 318.7
Livestock (Grazing Or Feeding Operations) Agriculture color.gif 225.3
Rural (Residential Areas) Other color.gif 196.8
Animal Feeding Operations (Nps) Agriculture color.gif 182.5
Petroleum/Natural Gas Activities Resource Extraction color.gif 143.7
Internal Nutrient Recycling Natural/Wildlife color.gif 129.3
Channelization Hydromodification color.gif 105.8
Impacts From Hydrostructure Flow Regulation/Modification Hydromodification color.gif 102.8
Manure Runoff Agriculture color.gif 86.3
Wet Weather Discharges (Non-Point Source) Urban-Related Runoff/Stormwater color.gif 83.0
Residential Districts Urban-Related Runoff/Stormwater color.gif 82.0
Sand/Gravel/Rock Mining Or Quarries Resource Extraction color.gif 74.9
Crop Production (Crop Land Or Dry Land) Agriculture color.gif 72.3
Unpermitted Discharge (Industrial/Commercial Wastes) Spills/Dumping color.gif 68.5
Non-Irrigated Crop Production Agriculture color.gif 65.4
Aquaculture (Permitted) Aquaculture color.gif 49.0
Petroleum/Natural Gas Production Activities (Permitted) Industrial color.gif 47.4
Dam Or Impoundment Hydromodification color.gif 46.6
Highways, Roads, Bridges, Infrastructure (New Construction) Construction color.gif 30.2
Municipal Point Source Impacts From Inadequate Industrial/Commercial Pretreatment Municipal Discharges/Sewage color.gif 28.2
Non-Metals Mining Discharges (Permitted) Resource Extraction color.gif 28.2
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso) Municipal Discharges/Sewage color.gif 27.9
Drought-Related Impacts Natural/Wildlife color.gif 27.3
Discharges From Municipal Separate Storm Sewer Systems (Ms4) Urban-Related Runoff/Stormwater color.gif 23.9
Septage Disposal Municipal Discharges/Sewage color.gif 19.0
Land Application Of Wastewater Biosolids (Non-Agricultural) Land Application/Waste Sites/Tanks color.gif 18.6
Industrial Thermal Discharges Industrial color.gif 18.4
Sediment Resuspension (Clean Sediment) Hydromodification color.gif 14.9
Waterfowl Natural/Wildlife color.gif 13.8
Impacts From Land Application Of Wastes Land Application/Waste Sites/Tanks color.gif 13.4
Land Application Of Wastewater (Non-Agricultural) Land Application/Waste Sites/Tanks color.gif 13.4
Impacts From Resort Areas (Winter And Non-Winter Resorts) Recreation And Tourism (Non-Boating) color.gif 12.7
Unspecified Urban Stormwater Urban-Related Runoff/Stormwater color.gif 10.7
Aquaculture (Not Permitted) Aquaculture color.gif 10.6
Loss Of Riparian Habitat Habitat Alterations (Not Directly Related To Hydromodification) color.gif 9.0
Discharges From Biosolids (Sludge) Storage, Application Or Disposal Land Application/Waste Sites/Tanks color.gif 7.8
Streambank Modifications/Destabilization Hydromodification color.gif 7.3
Auction Barns And Off-Farm Animal Holding/Management Area Agriculture color.gif 7.3
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 6.8
Habitat Modification - Other Than Hydromodification Habitat Alterations (Not Directly Related To Hydromodification) color.gif 1.7
Littoral/Shore Area Modifications (Non-Riverine) Habitat Alterations (Not Directly Related To Hydromodification) color.gif 1.5
Unspecified Land Disturbance Other color.gif 1.1

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Site-specific Targeted Monitoring Results

Texas Lakes, Reservoirs, and Ponds 2010

Description of this table

All
Lakes, Reservoirs, and Ponds

1,994,600.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 1,461,996.6
Unassessed 532,603.4
Total Acres 1,994,600.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

1,461,996.6 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good 900,088.0
Threatened .0
Impaired 561,908.7
Total Acres Assessed 1,461,996.6







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

561,908.7 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

24,535.0
.0
232.8
537,140.9
Total Threatened and Impaired 561,908.7

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Texas Lakes, Reservoirs, and Ponds 2010

* 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 Use 1,122,430.2 97.6 .0 2.4 color.gifcolor.gif
Domestic Water Supply - Public Water Supply 926,284.2 100.0 .0 .0 color.gif
Fish Consumption Use 576,283.9 39.7 .0 60.3 color.gifcolor.gif
General Use 1,423,605.5 84.7 .0 15.3 color.gifcolor.gif
Primary Recreation/Swimming 930,414.6 99.5 .0 .5 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Texas Lakes, Reservoirs, and Ponds 2010

Description of this table
Mercury in Fish Tissue Mercury color.gif 339,710.0
Sulfates Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 116,257.4
pH pH/Acidity/Caustic Conditions color.gif 91,801.0
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 60,190.5
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 25,998.0
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 24,680.9
PCB(s) in Fish Tissue Polychlorinated Biphenyls (PCBs) color.gif 7,975.4
Bacteria Pathogens color.gif 4,647.3
Impaired Fish Community Cause Unknown - Impaired Biota color.gif 3,731.7
DDT in Fish Tissue Pesticides color.gif 2,433.7
Chlordane in Fish Tissue Pesticides color.gif 2,433.7
DDD Pesticides color.gif 2,433.7
Dieldrin Pesticides color.gif 2,433.7
DDE Pesticides color.gif 2,433.7
Heptachlor Epoxide Pesticides color.gif 2,433.7
Sediment Toxicity Total Toxics color.gif 1,408.7
Copper Metals (other than Mercury) color.gif 1,370.6

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Site-specific Targeted Monitoring Results

Probable Sources
Texas Lakes, Reservoirs, and Ponds 2010

Description of this table
Source Unknown Unknown color.gif 510,566.7
Atmospheric Deposition - Toxics Atmospheric Deposition color.gif 338,869.3
Non-Point Source Unspecified Nonpoint Source color.gif 98,377.7
Natural Sources Natural/Wildlife color.gif 74,907.3
Internal Nutrient Recycling Natural/Wildlife color.gif 37,986.7
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 37,337.6
Drought-Related Impacts Natural/Wildlife color.gif 30,108.8
Upstream Source Other color.gif 19,550.7
Sources Outside State Jurisdiction Or Borders Other color.gif 16,238.3
Crop Production (Crop Land Or Dry Land) Agriculture color.gif 14,764.9
Natural Conditions - Water Quality Standards Use Attainability Analyses Needed Natural/Wildlife color.gif 12,845.4
Agriculture Agriculture color.gif 11,452.5
Shallow Lake/Reservoir Other color.gif 7,115.3
Petroleum/Natural Gas Activities Resource Extraction color.gif 7,115.3
Industrial Point Source Discharge Industrial color.gif 3,510.4
Non-Irrigated Crop Production Agriculture color.gif 3,312.4
Residential Districts Urban-Related Runoff/Stormwater color.gif 3,312.4
Specialty Crop Production Agriculture color.gif 3,312.4
Nps Pollution From Military Base Facilities (Other Than Port Facilities) Military Bases color.gif 2,433.7
Site Clearance (Land Development Or Redevelopment) Construction color.gif 2,433.7
Irrigated Crop Production Agriculture color.gif 2,101.7
Contaminated Sediments Legacy/Historical Pollutants color.gif 1,385.3
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 824.1
Sanitary Sewer Overflows (Collection System Failures) Municipal Discharges/Sewage color.gif 800.7
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems) Municipal Discharges/Sewage color.gif 800.7
Waterfowl Natural/Wildlife color.gif 288.6
Atmospheric Deposition - Acidity Atmospheric Deposition color.gif 262.1
Dam Or Impoundment Hydromodification color.gif 232.8
Industrial Land Treatment Industrial color.gif 38.2
Discharges From Municipal Separate Storm Sewer Systems (Ms4) Urban-Related Runoff/Stormwater color.gif 23.5
Industrial/Commercial Site Stormwater Discharge (Permitted) Urban-Related Runoff/Stormwater color.gif 14.7

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Site-specific Targeted Monitoring Results

Texas Bays and Estuaries 2010

Description of this table

All
Bays and Estuaries

2,393.0 Square Miles of Bays and Estuaries

Assessed 6,010.8
Unassessed -3,617.8
Total Square Miles 2,393.0







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Description of this table

Assessed
Bays and Estuaries

6,010.8 Square Miles of
Assessed Bays and Estuaries

Good 4,320.9
Threatened .0
Impaired 1,690.0
Total Square Miles Assessed 6,010.8







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Description of this table

Threatened and Impaired
Bays and Estuaries

1,690.0 Square Miles of
Threatened and Impaired
Bays and Estuaries

210.1
.0
.1
1,479.8
Total Threatened and Impaired 1,690.0

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Texas Bays and Estuaries 2010

* 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 Use 4,101.1 85.0 .0 15.0 color.gifcolor.gif
Fish Consumption Use 1,201.1 54.9 .0 45.1 color.gifcolor.gif
General Use 4,141.1 100.0 .0 .0 color.gif
Oyster Aquatic Life 1,863.4 72.0 .0 28.0 color.gifcolor.gif
Primary Recreation/Swimming 4,135.1 97.5 .0 2.5 color.gifcolor.gif
Recreational Beaches 1.3 94.5 .0 5.5 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Texas Bays and Estuaries 2010

Description of this table
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 614.4
PCB(s) in Fish Tissue Polychlorinated Biphenyls (PCBs) color.gif 540.5
Dioxin (Including 2,3,7,8-TCDD) Dioxins color.gif 540.5
Bacteria (Oyster Waters) Pathogens color.gif 491.2
Bacteria Pathogens color.gif 105.0
Zinc in Edible Tissue Metals (other than Mercury) color.gif 30.5
Mercury in Fish Tissue Mercury color.gif 1.6

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Site-specific Targeted Monitoring Results

Probable Sources
Texas Bays and Estuaries 2010

Description of this table
Source Unknown Unknown color.gif 1,110.5
Non-Point Source Unspecified Nonpoint Source color.gif 1,006.9
Upstream Source Other color.gif 611.9
Industrial Point Source Discharge Industrial color.gif 542.2
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 361.2
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 43.7
Irrigated Crop Production Agriculture color.gif 27.6
Wildlife Other Than Waterfowl Natural/Wildlife color.gif 7.0
Natural Sources Natural/Wildlife color.gif 6.6

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Site-specific Targeted Monitoring Results

Texas Coastal Shoreline 2010

Description of this table
Pie chart not displayed because total size for Coastal Shoreline is unavailable.
Assessed 388.2
Unassessed Unavailable
Total Miles Unavailable







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Description of this table

Assessed
Coastal Shoreline

388.2 Miles of
Assessed Coastal Shoreline

Good .0
Threatened .0
Impaired 388.2
Total Miles Assessed 388.2







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Description of this table

Threatened and Impaired
Coastal Shoreline

388.2 Miles of
Threatened and Impaired
Coastal Shoreline

.0
.0
.0
388.2
Total Threatened and Impaired 388.2

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Texas Coastal Shoreline 2010

* 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 Use 150.5 100.0 .0 .0 color.gif
Fish Consumption Use 388.2 .0 .0 100.0 color.gif
General Use 150.5 100.0 .0 .0 color.gif
Primary Recreation/Swimming 150.5 82.0 .0 18.0 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Texas Coastal Shoreline 2010

Description of this table
Mercury in Fish Tissue Mercury color.gif 388.2
Bacteria Pathogens color.gif 27.0

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Site-specific Targeted Monitoring Results

Probable Sources
Texas Coastal Shoreline 2010

Description of this table
Source Unknown Unknown color.gif 388.2
Atmospheric Deposition - Toxics Atmospheric Deposition color.gif 388.2

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Site-specific Targeted Monitoring Results

Texas Ocean and Near Coastal 2010

Description of this table
Pie chart not displayed because total size for Ocean and Near Coastal is unavailable.
Assessed 74.9
Unassessed Unavailable
Total Square Miles Unavailable







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Description of this table

Assessed
Ocean and Near Coastal

74.9 Square Miles of
Assessed Ocean and Near Coastal

Good 6.6
Threatened .0
Impaired 68.3
Total Square Miles Assessed 74.9







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Description of this table

Threatened and Impaired
Ocean and Near Coastal

68.3 Square Miles of
Threatened and Impaired
Ocean and Near Coastal

.0
.0
.0
68.3
Total Threatened and Impaired 68.3

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Texas Ocean and Near Coastal 2010

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

Description of this table
% Good
% Threatened
% Impaired
Fish Consumption Use 68.3 .0 .0 100.0 color.gif
Recreational Beaches 6.6 100.0 .0 .0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Texas Ocean and Near Coastal 2010

Description of this table
Mercury in Fish Tissue Mercury color.gif 68.3

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Site-specific Targeted Monitoring Results

Probable Sources
Texas Ocean and Near Coastal 2010

Description of this table
Source Unknown Unknown color.gif 68.3
Atmospheric Deposition - Toxics Atmospheric Deposition color.gif 68.3

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Texas Causes of Impairment for Reporting Year 2010


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 92.5
Cause Unknown - Impaired Biota 243.9 3,731.7
Chlorine 5.0
Dioxins 521.0 540.5
Mercury 389.7 339,710.0 1.6 388.2 68.3
Metals (other than Mercury) 66.8 1,370.6 30.5
Nutrients 27.9
Organic Enrichment/Oxygen Depletion 1,954.2 25,998.0 614.4
Pathogens 7,107.7 4,647.3 596.2 27.0
Pesticides 141.1 2,433.7
pH/Acidity/Caustic Conditions 176.3 91,801.0
Polychlorinated Biphenyls (PCBs) 640.8 7,975.4 540.5
Salinity/Total Dissolved Solids/Chlorides/Sulfates 1,416.2 143,053.8
Total Toxics 23.3 1,408.7

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Texas Probable Sources Contributing to Impairments
for Reporting Year 2010

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 2,456.5 16,866.6 27.6
Aquaculture 49.0
Atmospheric Deposition 318.7 338,869.3 388.2 68.3
Construction 30.2 2,433.7
Habitat Alterations (Not Directly Related To Hydromodification) 10.4
Hydromodification 452.1 232.8
Industrial 441.3 3,510.4 542.2
Land Application/Waste Sites/Tanks 18.6
Legacy/Historical Pollutants 1,385.3
Military Bases 2,433.7
Municipal Discharges/Sewage 2,730.2 38,138.3 43.7
Natural/Wildlife 2,414.2 127,609.6 13.7
Other 1,569.5 26,666.0 611.9
Recreation And Tourism (Non-Boating) 12.7
Resource Extraction 253.5 7,115.3
Spills/Dumping 68.5
Unknown 5,473.9 510,566.7 1,110.5 388.2 68.3
Unspecified Nonpoint Source 5,960.9 98,377.7 1,006.9
Urban-Related Runoff/Stormwater 1,543.0 4,174.7 361.2

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Texas TMDL Alternatives by Cause of Impairment 2010


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.
Chlordane in Fish Tissue color.gif 15 73  
Dieldrin color.gif 15 73  
Heptachlor Epoxide color.gif 15 73  
Bacteria color.gif 3 55  
Dissolved Oxygen color.gif 1 5  
Mercury in Fish Tissue color.gif 1   2

Total: 50 TMDL Alternatives

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Texas 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.
2005 color.gif 7 7
2008 color.gif 22 26
2012 color.gif 42 50

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Texas 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 418
Organic Enrichment/Oxygen Depletion color.gif 130
Polychlorinated Biphenyls (PCBs) color.gif 104
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 102
Dioxins color.gif 90
Mercury color.gif 75
pH/Acidity/Caustic Conditions color.gif 41
Cause Unknown - Impaired Biota color.gif 24
Total Toxics color.gif 11
Metals (other than Mercury) color.gif 6
Chlorine color.gif 1
Pesticides color.gif 1

Total: 1,003 Causes of Impairment

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Texas 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
Escherichia Coli (E. Coli) color.gif 135 135
Enterococcus Bacteria color.gif 17 17
Nickel color.gif 14 14
Fecal Coliform color.gif 11 11
Carbonaceous Bod (CBOD) color.gif 10 10
Chlordane color.gif 10 10
Ammonia Nitrogen color.gif 8 8
Polychlorinated Biphenyls (PCBs) color.gif 5 5
DDE color.gif 4 4
Dieldrin color.gif 4 4
Total Dissolved Solids (TDS) color.gif 3 3
1,1,2-Trichloroethane color.gif 2 2
1,2-Dichloroethane color.gif 2 2
Ammonia color.gif 2 2
Chloride color.gif 2 2
DDT color.gif 2 2
Dissolved Oxygen color.gif 2 2
Heptachlor Epoxide color.gif 2 2
PCB(s) in Fish Tissue color.gif 2 2
Phosphorus color.gif 2 2
4,4'-DDD color.gif 1 1
4,4'-DDT color.gif 1 1
Atrazine color.gif 1 1
DDD color.gif 1 1
Endrin color.gif 1 1
Heptachlor color.gif 1 1
Hexachlorobenzene color.gif 1 1
Lindane color.gif 1 1
Nitrogen, Total color.gif 1 1
Sulfate color.gif 1 1
Sulfates color.gif 1 1
Toxaphene color.gif 1 1
Zinc in Shellfish color.gif 1 1

Total: 252 TMDLs; 252 Causes of Impairment Addressed


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Texas 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.
2001 color.gif 26 26
2002 color.gif 2 2
2003 color.gif 23 23
2004 color.gif 8 8
2006 color.gif 3 3
2007 color.gif 35 35
2008 color.gif 1 1
2009 color.gif 54 54
2010 color.gif 38 38
2011 color.gif 17 17
2012 color.gif 15 15
2013 color.gif 10 10
2014 color.gif 19 19
2015 color.gif 1 1

Total: 252 TMDLs; 252 Causes of Impairment Addressed

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