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Assessment Data for the State of Texas Year 2002

National Assessment Database
About this Database

Assessing Water Quality (Questions and Answers)

National Water Quality Inventory Report to Congress, 2002 Reporting Cycle

The 2002 National Assessment
Database
(Fact Sheet)

Previous National Water Quality Reports

EnviroMapper for Water

Impaired Water Information
2002 303(d) List Report

Other Water Assessment Information
The most current report available for this state is 2008.
Data are also available for these years: 2004 2006



State of Texas websites:

State 305(b) Water Quality Assessment Report(s)
  State Water Quality Program

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Total Assessed Waters for the State of Texas

Description of this table

Size Of Water
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Water (Square Miles)
Total Assessed Waters 16,892.00 1,574,070.90 2,936.18 682.83 3,879.00 .00 .00 .00
Estimated Total Water Size in TX 191,228.00 3,065,600.00 2,936.18 Unavailable Unavailable Unavailable Unavailable Unavailable
Percent of Waters Assessed 8.83 51.35 100.00 Unavailable Unavailable Unavailable Unavailable Unavailable

Assessed Waters of Texas by Watershed

Description of this table
Watershed Size of Water
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Water (Square Miles)
AMISTAD RESERVOIR 183.00 10,240.00 .00 .00 .00 .00 .00 .00
ARANSAS 58.00 .00 8.00 6.00 .00 .00 .00 .00
ARANSAS BAY .00 .00 218.90 .00 .00 .00 .00 .00
ATASCOSA 103.00 .00 .00 .00 .00 .00 .00 .00
AUSTIN-OYSTER 131.60 .00 23.70 50.00 .00 .00 .00 .00
AUSTIN-TRAVIS LAKES 254.00 22,039.00 .00 .00 .00 .00 .00 .00
BAFFIN BAY 44.00 .00 16.00 14.00 .00 .00 .00 .00
BEALS 73.00 .00 .00 .00 .00 .00 .00 .00
BIG BEND 313.00 .00 .00 .00 .00 .00 .00 .00
BLACK HILLS-FRESNO 25.00 .00 .00 .00 .00 .00 .00 .00
BLUE-CHINA 100.00 .00 .00 .00 .00 .00 .00 .00
BOIS D'ARC-ISLAND 289.00 7,219.00 .00 .00 .00 .00 .00 .00
BOSQUE 92.10 7,178.00 .00 .00 .00 .00 .00 .00
BRADY 27.00 .00 .00 .00 .00 .00 .00 .00
BUCHANAN-LYNDON B.JOHNSON LAKES 62.00 28,038.00 .00 .00 .00 .00 .00 .00
BUFFALO-SAN JACINTO 172.00 .00 2.10 66.50 .00 .00 .00 .00
CADDO LAKE 139.00 26,800.00 .00 .00 .00 .00 .00 .00
CEDAR .00 30,223.00 .00 .00 .00 .00 .00 .00
CENTRAL LAGUNA MADRE .00 .00 16.00 .00 .00 .00 .00 .00
CENTRAL MATAGORDA BAY 45.00 .00 339.80 8.00 .00 .00 .00 .00
CHAMBERS 49.00 38,772.00 .00 .00 .00 .00 .00 .00
CIBOLO 156.00 .00 .00 .00 .00 .00 .00 .00
CIBOLO-RED LIGHT 51.00 .00 .00 .00 .00 .00 .00 .00
COLORADO HEADWATERS 99.00 9,420.00 .00 .00 .00 .00 .00 .00
CONCHO 117.00 12,000.00 .00 .00 .00 .00 .00 .00
CROSS BAYOU 24.00 .00 .00 .00 .00 .00 .00 .00
DENTON 43.00 7,380.00 .00 .00 .00 .00 .00 .00
DOUBLE MOUTAIN FORK BRAZOS 145.00 .00 .00 .00 .00 .00 .00 .00
EAST FORK SAN JACINTO 197.00 .00 .00 .00 .00 .00 .00 .00
EAST FORK TRINITY 91.80 44,145.00 .00 .00 .00 .00 .00 .00
EAST GALVESTON BAY .00 .00 443.80 25.00 1,011.60 .00 .00 .00
EAST MATAGORDA BAY 121.00 .00 118.20 25.00 .00 .00 .00 .00
EAST SAN ANTONIO BAY .00 .00 262.40 .00 .00 .00 .00 .00
EL PASO-LAS CRUCES 21.00 .00 .00 .00 .00 .00 .00 .00
ELM FORK TRINITY 180.00 52,630.00 .00 .00 .00 .00 .00 .00
ELM-SYCAMORE 51.50 .00 .00 .00 .00 .00 .00 .00
FARMERS-MUD 182.00 1,470.00 .00 .00 .00 .00 .00 .00
GROESBECK-SANDY 29.00 .00 .00 .00 .00 .00 .00 .00
HONDO 148.00 .00 .00 .00 .00 .00 .00 .00
HUBBARD .00 14,695.00 .00 .00 .00 .00 .00 .00
INDEPENDENCE 22.00 .00 .00 .00 .00 .00 .00 .00
INTERNATIONAL FALCON RESERVOIR 85.20 82,090.00 .00 .00 .00 .00 .00 .00
JIM NED 28.00 2,000.00 .00 .00 .00 .00 .00 .00
LAKE FORK 42.40 27,690.00 .00 .00 .00 .00 .00 .00
LAKE MEREDITH 98.00 16,504.00 .00 .00 .00 .00 .00 .00
LAKE O'THE PINES 53.00 32,925.00 .00 .00 .00 .00 .00 .00
LAKE TEXOMA 43.00 89,000.00 .00 .00 .00 .00 .00 .00
LAMPASAS 193.00 6,597.00 .00 .00 .00 .00 .00 .00
LAVACA 94.00 .00 .00 23.00 .00 .00 .00 .00
LEON 323.00 18,500.00 .00 .00 .00 .00 .00 .00
LITTLE 104.00 .00 .00 .00 .00 .00 .00 .00
LITTLE CYPRESS 82.50 .00 .00 .00 .00 .00 .00 .00
LITTLE WICHITA 47.00 22,400.00 .00 .00 .00 .00 .00 .00
LLANO 104.00 .00 .00 .00 .00 .00 .00 .00
LOS OLMOS 89.00 .00 .00 .00 .00 .00 .00 .00
LOWER ANGELINA 176.70 123,698.00 .00 .00 .00 .00 .00 .00
LOWER BRAZOS 232.01 .00 .00 25.00 .00 .00 .00 .00
LOWER BRAZOS-LITTLE BRAZOS 404.42 700.00 .00 .00 .00 .00 .00 .00
LOWER CLEAR FORK BRAZOS 25.00 .00 .00 .00 .00 .00 .00 .00
LOWER COLORADO 133.00 .00 .00 27.00 .00 .00 .00 .00
LOWER COLORADO-CUMMINS 216.50 3,331.00 .00 .00 .00 .00 .00 .00
LOWER DEVILS 25.00 64,900.00 .00 .00 .00 .00 .00 .00
LOWER FRIO 101.00 26,000.00 .00 .00 .00 .00 .00 .00
LOWER GUADALUPE 121.40 .00 .00 11.00 .00 .00 .00 .00
LOWER NECHES 165.10 13,700.00 .00 30.20 .00 .00 .00 .00
LOWER PECOS 348.00 .00 .00 .00 .00 .00 .00 .00
LOWER PECOS-RED BLUFF RESERVOIR 50.00 11,700.00 .00 .00 .00 .00 .00 .00
LOWER PRAIRIE DOG TOWN FORK RED 115.00 .00 .00 .00 .00 .00 .00 .00
LOWER RIO GRANDE 167.00 .00 .00 25.00 .00 .00 .00 .00
LOWER SABINE 214.70 .00 .00 66.70 .00 .00 .00 .00
LOWER SALT FORK RED 76.00 .00 .00 .00 .00 .00 .00 .00
LOWER SAN ANTONIO 201.00 .00 .00 .00 .00 .00 .00 .00
LOWER SULPHUR 77.50 20,000.00 .00 .00 .00 .00 .00 .00
LOWER TRINITY 62.00 .00 8.00 25.00 .00 .00 .00 .00
LOWER TRINITY-KICKAPOO 146.00 82,600.00 .00 .00 .00 .00 .00 .00
LOWER TRINITY-TEHUACANA 197.70 1,282.00 .00 .00 .00 .00 .00 .00
LOWER WASHITA .00 89,000.00 .00 .00 .00 .00 .00 .00
LOWER WEST FORK TRINITY 140.20 21,033.00 .00 .00 .00 .00 .00 .00
LOWER WOLF 40.00 .00 .00 .00 .00 .00 .00 .00
MCKINNEY-POSTEN BAYOUS 6.00 .00 .00 .00 .00 .00 .00 .00
MEDINA 164.00 6,075.00 .00 .00 .00 .00 .00 .00
MIDDLE BRAZOS-LAKE WHITNEY 241.00 29,053.00 .00 .00 .00 .00 .00 .00
MIDDLE BRAZOS-MILLERS 170.00 .00 .00 .00 .00 .00 .00 .00
MIDDLE BRAZOS-PALO PINTO 180.00 33,711.00 .00 .00 .00 .00 .00 .00
MIDDLE CANADIAN-SPRING 117.00 .00 .00 .00 .00 .00 .00 .00
MIDDLE CANADIAN-TRUJILLO 66.00 .00 .00 .00 .00 .00 .00 .00
MIDDLE COLORADO 138.00 10,150.00 .00 .00 .00 .00 .00 .00
MIDDLE COLORADO-ELM 64.00 4,000.00 .00 .00 .00 .00 .00 .00
MIDDLE CONCHO 50.00 .00 .00 .00 .00 .00 .00 .00
MIDDLE GUADALUPE 374.60 .00 .00 .00 .00 .00 .00 .00
MIDDLE NECHES 185.30 52.90 .00 .00 .00 .00 .00 .00
MIDDLE NORTH FORK RED 108.00 .00 .00 .00 .00 .00 .00 .00
MIDDLE NUECES 130.00 .00 .00 .00 .00 .00 .00 .00
MIDDLE SABINE 238.50 14,068.00 .00 .00 .00 .00 .00 .00
MISSION 9.00 .00 41.20 19.00 .00 .00 .00 .00
NAVASOTA 285.20 17,198.00 .00 .00 .00 .00 .00 .00
NAVIDAD 126.00 11,000.00 .00 9.00 .00 .00 .00 .00
NORTH BOSQUE 298.70 2,641.00 .00 .00 .00 .00 .00 .00
NORTH CONCHO 17.00 5,440.00 .00 .00 .00 .00 .00 .00
NORTH CORPUS CHRISTI BAY .00 .00 128.00 .00 .00 .00 .00 .00
NORTH FORK DOUBLE MOUNTAIN FORK BRAZOS 3.00 .00 .00 .00 .00 .00 .00 .00
NORTH GALVESTON BAY 25.00 .00 156.30 19.00 .00 .00 .00 .00
NORTH LAGUNA MADRE .00 .00 16.00 .00 .00 .00 .00 .00
NORTH LLANO 97.00 .00 .00 .00 .00 .00 .00 .00
NORTH PEASE 74.00 .00 .00 .00 .00 .00 .00 .00
NORTH WICHITA 169.00 .00 .00 .00 .00 .00 .00 .00
NUECES HEADWATERS 73.00 .00 .00 .00 .00 .00 .00 .00
PAINT 25.00 4,690.00 .00 .00 .00 .00 .00 .00
PALO DURO .00 2,410.00 .00 .00 .00 .00 .00 .00
PEASE 162.00 .00 .00 .00 .00 .00 .00 .00
PECAN BAYOU 109.00 7,290.00 .00 .00 .00 .00 .00 .00
PECAN-WATERHOLE 168.00 .00 .00 .00 .00 .00 .00 .00
PEDERNALES 149.00 2,600.00 .00 .00 .00 .00 .00 .00
PINE ISLAND BAYOU 133.00 .00 .00 .00 .00 .00 .00 .00
PUNTA DE AGUA 25.00 .00 .00 .00 .00 .00 .00 .00
REAGAN-SANDERSON 205.00 .00 .00 .00 .00 .00 .00 .00
RICHLAND 32.00 25,550.00 .00 .00 .00 .00 .00 .00
RIO GRANDE-FORT QUITMAN 25.10 .00 .00 .00 .00 .00 .00 .00
SABINE LAKE 62.25 .00 21.90 .00 378.30 .00 .00 .00
SALT FORK BRAZOS 178.00 .00 .00 .00 .00 .00 .00 .00
SAN AMBROSIA-SANTA ISABEL 132.30 .00 .00 .00 .00 .00 .00 .00
SAN BERNARD 107.00 .00 .00 25.00 .00 .00 .00 .00
SAN FERNANDO .00 .00 8.00 25.00 .00 .00 .00 .00
SAN GABRIEL 252.60 6,094.00 .00 .00 .00 .00 .00 .00
SAN MARCOS 232.00 .00 .00 .00 .00 .00 .00 .00
SAN MIGUEL 66.00 .00 .00 .00 .00 .00 .00 .00
SAN SABA 168.00 .00 .00 .00 .00 .00 .00 .00
SOUTH CONCHO 92.00 10,676.00 .00 .00 .00 .00 .00 .00
SOUTH CORPUS CHRISTI BAY .00 .00 235.00 25.00 .00 .00 .00 .00
SOUTH LAGUNA MADRE 63.00 333.00 210.00 26.00 .00 .00 .00 .00
SOUTH LLANO 127.00 .00 .00 .00 .00 .00 .00 .00
SOUTH WICHITA 144.00 .00 .00 .00 .00 .00 .00 .00
SOUTHERN BEAVER 48.00 .00 .00 .00 .00 .00 .00 .00
SPRING 142.60 .00 .00 .00 .00 .00 .00 .00
SULPHUR HEADWATERS 271.00 19,305.00 .00 .00 .00 .00 .00 .00
TOLEDO BEND RESERVOIR 43.60 181,600.00 .00 .00 .00 .00 .00 .00
TULE .00 896.00 .00 .00 .00 .00 .00 .00
UECES 56.00 21,900.00 .00 12.00 .00 .00 .00 .00
UPPER ANGELINA 145.50 7,090.00 .00 .00 .00 .00 .00 .00
UPPER CLEAR FORK BRAZOS 31.00 14,867.00 .00 .00 .00 .00 .00 .00
UPPER COLORADO 97.00 17,325.00 .00 .00 .00 .00 .00 .00
UPPER DEVILS 42.00 .00 .00 .00 .00 .00 .00 .00
UPPER FRIO 324.00 .00 .00 .00 .00 .00 .00 .00
UPPER GUADALUPE 180.00 8,240.00 .00 .00 .00 .00 .00 .00
UPPER NECHES 164.70 26,880.00 .00 .00 .00 .00 .00 .00
UPPER NORTH FORK RED 55.00 .00 .00 .00 .00 .00 .00 .00
UPPER NUECES 223.00 .00 .00 .00 .00 .00 .00 .00
UPPER PRAIRIE DOG TOWN FORK RED 66.00 240.00 .00 .00 .00 .00 .00 .00
UPPER SABINE 100.00 36,700.00 .00 .00 .00 .00 .00 .00
UPPER SALT FORK RED 66.00 2,025.00 .00 .00 .00 .00 .00 .00
UPPER SAN ANTONIO 98.25 .00 .00 .00 .00 .00 .00 .00
UPPER TRINITY 100.00 .00 .00 .00 .00 .00 .00 .00
UPPER WEST FORK TRINITY 121.00 23,719.00 .00 .00 .00 .00 .00 .00
UPPER WOLF 66.00 .00 .00 .00 .00 .00 .00 .00
VILLAGE 203.10 3,584.00 .00 .00 .00 .00 .00 .00
WEST FORK SAN JACINTO 110.50 31,560.00 .00 .00 .00 .00 .00 .00
WEST GALVESTON BAY 87.80 .00 189.54 73.80 .00 .00 .00 .00
WEST MATAGORDA BAY .00 .00 340.70 7.00 .00 .00 .00 .00
WEST SAN ANTONIO BAY .00 .00 233.40 .00 .00 .00 .00 .00
WHITE 25.00 2,020.00 .00 .00 .00 .00 .00 .00
WHITE OAK BAYOU 50.00 .00 .00 .00 .00 .00 .00 .00
WICHITA 203.00 16,540.00 .00 .00 .00 .00 .00 .00
YEGUA 95.00 12,560.00 .00 .00 .00 .00 .00 .00
Name Not Reported 710.37 12,930.00 556.04 39.63 2,867.40 .00 .00 .00


Texas Assessed Waters
Individual Use Support for Rivers and Streams

Description of this table
State Designated Use Total Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 16,892.00 80.28 .00 19.72 color.gifcolor.gif
Recreation Recreation 8,693.85 76.07 .00 23.93 color.gifcolor.gif
Public Water Supply Public Water Supply 8,754.70 99.69 .00 .31 color.gifcolor.gif
Aquatic Life Harvesting Aquatic Life Harvesting 1,900.80 90.79 .00 9.21 color.gifcolor.gif
The state assessed 16,892.00 miles of rivers and streams, or 8.83% of 191,228.00 total miles.

Texas Assessed Waters
Water Quality Attainment for Rivers and Streams

Description of this table
Attainment Status Miles Percent of Assessed
Good 13,560.34 80.28
Threatened .00 .00
Impaired 3,331.66 19.72
Total Miles Assessed 16,892.00 100.00

Texas Top Causes of Impairments
for Rivers and Streams

Description of this table
# State Cause Name Total
Miles
Impaired
1 BACTERIA/PATHOGENS 2,080.81
2 TOTAL DISSOLVED SOLIDS 610.00
3 CHLORIDE 540.00
4 OXYGEN, DISSOLVED 178.45
5 SELENIUM 137.00
6 EXCESS ALGAL GROWTH 95.50
7 PH 77.20
8 PCBS 69.00
9 CHLORDANE 69.00
10 BENTHIC-MACROINVERTEBRATE BIOASSESSMENTS (STREAMS) 63.00

Texas Top Probable Sources of Impairments
for Rivers and Streams

Description of this table
# State Source Name Total Miles Impaired by Source
1 SOURCE UNKNOWN 1,782.57
2 NON-POINT SOURCE 1,772.97
3 UNKNOWN POINT SOURCE 1,117.12
4 MUNICIPAL POINT SOURCE DISCHARGES 752.27
5 AGRICULTURE 574.92
6 NATUAL CONDITIONS - WATER QUALITY STANDARDS USE ATTAINABILITY ANALYSES NEEDED 445.20
7 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 432.47
8 SOURCES OUTSIDE STATE JURISDICTION OR BORDERS 323.70
9 CROP PRODUCTION (CROP LAND OR DRY LAND) 262.92
10 PERMITTED RUNOFF FROM CONFINED ANIMAL FEEDING OPERATIONS (CAFOS) 241.60

Texas Assessed Waters
Individual Use Support for Lakes, Ponds and Reservoirs

Description of this table
State Designated Use Total Acres Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 1,574,070.90 70.17 .00 29.83 color.gifcolor.gif
Recreation Recreation 407,324.00 100.00 .00 .00 color.gif
Public Water Supply Public Water Supply 1,532,153.00 100.00 .00 .00 color.gif
Aquatic Life Harvesting Aquatic Life Harvesting 623,572.90 39.92 .00 60.08 color.gifcolor.gif
The state assessed 1,574,070.90 acres of lakes, ponds and reservoirs, or 51.35% of 3,065,600.00 total acres.

Texas Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs

Description of this table
Attainment Status Acres Percent of Assessed
Good 1,104,492.00 70.17
Threatened .00 .00
Impaired 469,578.90 29.83
Total Acres Assessed 1,574,070.90 100.00

Texas Top Causes of Impairments
for Lakes, Ponds and Reservoirs

Description of this table
# State Cause Name Total
Acres
Impaired
1 MERCURY 360,357.90
2 PH 57,192.00
3 TOTAL DISSOLVED SOLIDS 31,440.00
4 OXYGEN, DISSOLVED 11,549.00
5 SELENIUM 7,625.00
6 CHLORIDE 7,460.00
7 PCBS 6,641.00
8 DIELDRIN 2,731.00
9 DDE 2,731.00
10 CHLORDANE 2,731.00

Texas Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs

Description of this table
# State Source Name Total Acres Impaired by Source
1 ATMOSPHERIC DEPOSITION 360,357.90
2 SOURCE UNKNOWN 91,406.00
3 NON-POINT SOURCE 91,406.00
4 UNKNOWN POINT SOURCE 60,950.00
5 NATUAL CONDITIONS - WATER QUALITY STANDARDS USE ATTAINABILITY ANALYSES NEEDED 15,260.00
6 INDUSTRIAL POINT SOURCE DISCHARGE 10,990.00
7 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 6,308.00
8 UPSTREAM IMPOUNDMENTS (E.G., PL-566 NRCS STRUCTURES) 303.00
9 CHANNEL EROSION/INCISION FROM UPSTREAM HYDROMODIFICATIONS 303.00

Texas Assessed Waters
Individual Use Support for Bays and Estuaries

Description of this table
State Designated Use Total Square Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 2,505.58 85.68 .00 14.32 color.gifcolor.gif
Recreation Recreation 1,521.18 100.00 .00 .00 color.gif
Aquatic Life Harvesting Aquatic Life Harvesting 621.70 39.50 .00 60.50 color.gifcolor.gif
The state assessed 2,936.18 square miles of bays and estuaries, or 100.00% of 2,936.18 total square miles.

Texas Assessed Waters
Water Quality Attainment for Bays and Estuaries

Description of this table
Attainment Status Square Miles Percent of Assessed
Good 2,552.88 86.95
Threatened .00 .00
Impaired 383.30 13.05
Total Square Miles Assessed 2,936.18 100.00

Texas Top Causes of Impairments
for Bays and Estuaries

Description of this table
# State Cause Name Total
Square Miles
Impaired
1 BACTERIA (OYSTER WATERS) 310.90
2 DIOXIN (INCLUDING 2,3,7,8-TCDD) 33.80
3 ZINC 28.90
4 PH 9.20
5 OXYGEN, DISSOLVED 7.20
6 MERCURY 2.50

Texas Top Probable Sources of Impairments
for Bays and Estuaries

Description of this table
# State Source Name Total Square Miles Impaired by Source
1 NON-POINT SOURCE 339.80
2 SOURCE UNKNOWN 339.80
3 INDUSTRIAL POINT SOURCE DISCHARGE 33.80
4 UNKNOWN POINT SOURCE 9.20
5 MUNICIPAL POINT SOURCE DISCHARGES 7.20
6 SPILLS FROM TRUCKS OR TRAINS 2.50

Texas Assessed Waters
Individual Use Support for Coastal Shorelines

Description of this table
State Designated Use Total Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 682.83 65.31 .00 34.69 color.gifcolor.gif
Recreation Recreation 553.63 81.79 .00 18.21 color.gifcolor.gif
Public Water Supply Public Water Supply 25.00 100.00 .00 .00 color.gif
Aquatic Life Harvesting Aquatic Life Harvesting 151.10 28.46 .00 71.54 color.gifcolor.gif
The total size of this water type for the state is not currently available.

Texas Assessed Waters
Water Quality Attainment for Coastal Shorelines

Description of this table
Attainment Status Miles Percent of Assessed
Good 445.93 65.31
Threatened .00 .00
Impaired 236.90 34.69
Total Miles Assessed 682.83 100.00

Texas Top Causes of Impairments
for Coastal Shorelines

Description of this table
# State Cause Name Total
Miles
Impaired
1 DIOXIN (INCLUDING 2,3,7,8-TCDD) 108.10
2 BACTERIA/PATHOGENS 100.80
3 PESTICIDES 74.50
4 PCBS 74.50
5 OXYGEN, DISSOLVED 42.10
6 TEMPERATURE, WATER 14.00
7 PH 4.00
8 SEDIMENT BIOASSAYS -- CHRONIC TOXICITY -- FRESHWATER 2.50
9 ACUTE TOXICITY IN SEDIMENT .60

Texas Top Probable Sources of Impairments
for Coastal Shorelines

Description of this table
# State Source Name Total Miles Impaired by Source
1 INDUSTRIAL POINT SOURCE DISCHARGE 108.10
2 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 98.50
3 NON-POINT SOURCE 65.80
4 UNKNOWN POINT SOURCE 65.80
5 SOURCE UNKNOWN 65.80
6 MUNICIPAL POINT SOURCE DISCHARGES 49.60
7 NATUAL CONDITIONS - WATER QUALITY STANDARDS USE ATTAINABILITY ANALYSES NEEDED 19.10
8 COMBINED SEWER OVERFLOWS 6.60
9 SANITARY SEWER OVERFLOWS (COLLECTION SYSTEM FAILURES) 4.00

Texas Assessed Waters
Individual Use Support for Oceans, and Near Coastal

Description of this table
State Designated Use Total Square Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 3,879.00 .00 .00 100.00 color.gif
Recreation Recreation 1,865.60 100.00 .00 .00 color.gif
Aquatic Life Harvesting Aquatic Life Harvesting 3,879.00 .00 .00 100.00 color.gif
The total size of this water type for the state is not currently available.

Texas Assessed Waters
Water Quality Attainment for Oceans, and Near Coastal

Description of this table
Attainment Status Square Miles Percent of Assessed
Good .00 .00
Threatened .00 .00
Impaired 3,879.00 100.00
Total Square Miles Assessed 3,879.00 100.00

Texas Top Causes of Impairments
for Oceans, and Near Coastal

Description of this table
# State Cause Name Total
Square Miles
Impaired
1 MERCURY 3,879.00

Texas Top Probable Sources of Impairments
for Oceans, and Near Coastal

Description of this table
# State Source Name Total Square Miles Impaired by Source
1 ATMOSPHERIC DEPOSITION 3,879.00

Texas

Causes of Impairment

Description of this table
State Cause Name Size of Assessed Waters with Listed Causes of Impairment
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Waters (Squar Miles)
ZINC 3.20 .00 28.90 .00 .00 .00 .00 .00
EXCESS ALGAL GROWTH 95.50 .00 .00 .00 .00 .00 .00 .00
LOW FLOW ALTERATIONS 25.00 .00 .00 .00 .00 .00 .00 .00
CHLORIDE 540.00 7,460.00 .00 .00 .00 .00 .00 .00
DIELDRIN .00 2,731.00 .00 .00 .00 .00 .00 .00
PCBS 69.00 6,641.00 .00 74.50 .00 .00 .00 .00
SULFATES 60.00 .00 .00 .00 .00 .00 .00 .00
AMMONIA (UNIONIZED) - TOXIN 17.50 .00 .00 .00 .00 .00 .00 .00
BENTHIC-MACROINVERTEBRATE BIOASSESSMENTS (STREAMS) 63.00 .00 .00 .00 .00 .00 .00 .00
SEDIMENT BIOASSAYS -- CHRONIC TOXICITY -- FRESHWATER .00 .00 .00 2.50 .00 .00 .00 .00
DDD .00 2,710.00 .00 .00 .00 .00 .00 .00
LEAD 31.60 .00 .00 .00 .00 .00 .00 .00
CHLORDANE 69.00 2,731.00 .00 .00 .00 .00 .00 .00
BACTERIA/PATHOGENS 2,080.81 .00 .00 100.80 .00 .00 .00 .00
TEMPERATURE, WATER .00 .00 .00 14.00 .00 .00 .00 .00
BACTERIA (OYSTER WATERS) .00 .00 310.90 .00 .00 .00 .00 .00
DIOXIN (INCLUDING 2,3,7,8-TCDD) .00 .00 33.80 108.10 .00 .00 .00 .00
MERCURY 43.00 360,357.90 2.50 .00 3,879.00 .00 .00 .00
PHYSICAL SUBSTRATE HABITAT ALTERATIONS 28.75 .00 .00 .00 .00 .00 .00 .00
SELENIUM 137.00 7,625.00 .00 .00 .00 .00 .00 .00
TOTAL DISSOLVED SOLIDS 610.00 31,440.00 .00 .00 .00 .00 .00 .00
AMBIENT BIOASSAYS -- CHRONIC AQUATIC TOXICITY 48.60 .00 .00 .00 .00 .00 .00 .00
NITROGEN, NITRITE 37.80 .00 .00 .00 .00 .00 .00 .00
PHOSPHORUS, ELEMENTAL 10.80 .00 .00 .00 .00 .00 .00 .00
PH 77.20 57,192.00 9.20 4.00 .00 .00 .00 .00
DDE 63.00 2,731.00 .00 .00 .00 .00 .00 .00
DDT .00 2,710.00 .00 .00 .00 .00 .00 .00
PESTICIDES 63.00 .00 .00 74.50 .00 .00 .00 .00
OXYGEN, DISSOLVED 178.45 11,549.00 7.20 42.10 .00 .00 .00 .00
HEPTACHLOR EPOXIDE .00 2,710.00 .00 .00 .00 .00 .00 .00
ACUTE TOXICITY IN SEDIMENT .00 .00 .00 .60 .00 .00 .00 .00

Texas

Probable Sources Contributing to Impairment

Description of this table
State Source Name Size of Assessed Waters with Probable Sources of Impairment
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Waters (Square Miles)
SANITARY SEWER OVERFLOWS (COLLECTION SYSTEM FAILURES) 175.97 .00 .00 4.00 .00 .00 .00 .00
PASTURE GRAZING--RIPARIAN AND/OR UPLAND 69.50 .00 .00 .00 .00 .00 .00 .00
UPSTREAM IMPOUNDMENTS (E.G., PL-566 NRCS STRUCTURES) 17.40 303.00 .00 .00 .00 .00 .00 .00
NON-POINT SOURCE 1,772.97 91,406.00 339.80 65.80 .00 .00 .00 .00
ATMOSPHERIC DEPOSITION 43.00 360,357.90 .00 .00 3,879.00 .00 .00 .00
IRRIGATED CROP PRODUCTION 232.10 .00 .00 .00 .00 .00 .00 .00
SOURCES OUTSIDE STATE JURISDICTION OR BORDERS 323.70 .00 .00 .00 .00 .00 .00 .00
IMPACTS FROM HYDROSTRUCTURE FLOW REGULATION/MODIFICATION 222.00 .00 .00 .00 .00 .00 .00 .00
ANIMAL FEEDING OPERATIONS (NPS) 241.60 .00 .00 .00 .00 .00 .00 .00
CROP PRODUCTION (CROP LAND OR DRY LAND) 262.92 .00 .00 .00 .00 .00 .00 .00
MUNICIPAL (URBANIZED HIGH DENSITY AREA) 432.47 6,308.00 .00 98.50 .00 .00 .00 .00
IMPACTS FROM LAND APPLICATION OF WASTES 70.00 .00 .00 .00 .00 .00 .00 .00
AGRICULTURE 574.92 .00 .00 .00 .00 .00 .00 .00
UNKNOWN POINT SOURCE 1,117.12 60,950.00 9.20 65.80 .00 .00 .00 .00
COMBINED SEWER OVERFLOWS .00 .00 .00 6.60 .00 .00 .00 .00
MUNICIPAL POINT SOURCE DISCHARGES 752.27 .00 7.20 49.60 .00 .00 .00 .00
LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 100.32 .00 .00 .00 .00 .00 .00 .00
PETROLEUM/NATURAL GAS PRODUCTION ACTIVITIES (PERMITTED) 74.00 .00 .00 .00 .00 .00 .00 .00
CHANNEL EROSION/INCISION FROM UPSTREAM HYDROMODIFICATIONS 239.40 303.00 .00 .00 .00 .00 .00 .00
ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) 70.00 .00 .00 .00 .00 .00 .00 .00
SPILLS FROM TRUCKS OR TRAINS .00 .00 2.50 .00 .00 .00 .00 .00
PERMITTED RUNOFF FROM CONFINED ANIMAL FEEDING OPERATIONS (CAFOS) 241.60 .00 .00 .00 .00 .00 .00 .00
NATUAL CONDITIONS - WATER QUALITY STANDARDS USE ATTAINABILITY ANALYSES NEEDED 445.20 15,260.00 .00 19.10 .00 .00 .00 .00
INDUSTRIAL POINT SOURCE DISCHARGE 225.75 10,990.00 33.80 108.10 .00 .00 .00 .00
SOURCE UNKNOWN 1,782.57 91,406.00 339.80 65.80 .00 .00 .00 .00
RESOURCES EXTRACTION 74.00 .00 .00 .00 .00 .00 .00 .00

Clicking anywhere on this state map will take you to the Enviromapper for Water website, where you can view and map various types of environmental information for the state. This information includes Superfund sites, water discharge permits, toxic releases, and more.


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