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- Assessment Summary
- Causes of Impairment
- Probable Sources Contributing to Impairment
- TMDL Alternatives by Cause of Impairment
- Cumulative TMDLs by Pollutant
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Texas, West Galveston Bay Watershed
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Assessment Summary for Reporting Year 2010
Texas, West Galveston Bay Watershed
Description of this table
Click here to list Threatened and Impaired Waters Only
Click here to list Threatened and Impaired Waters Only
| 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 |
|---|---|---|---|---|---|---|---|---|
| Armand Bayou Above Tidal (Unclassified Water Body) | TX-1113A_01 | From The Upper Segment Boundary Of Armand Bayou Tidal (Point 0.8 Km (0.5 Miles) Downstream Of Genoa-Red Bluff Road) Upstream To Beltway 8 | Data Unavailable | Stream | 4.6 | Miles | Impaired | TMDL needed |
| Armand Bayou Tidal | TX-1113_01 | From The Clear Lake Confluence At Nasa Road 1 To The Horsepen Bayou Confluence | Data Unavailable | Tidal River | 2.8 | Miles | Impaired | TMDL needed |
| Armand Bayou Tidal | TX-1113_02 | From The Horsepen Bayou Confluence To The Big Island Slough Confluence | Data Unavailable | Tidal River | 1.8 | Miles | Impaired | TMDL needed |
| Bastrop Bay/Oyster Lake | TX-2433_01 | Bastrop Bay | Data Unavailable | Estuary | 4.3 | Square Miles | Good | |
| Bayport Channel | TX-2438_01 | Entire Segment | Data Unavailable | Estuary | .4 | Square Miles | Impaired | TMDL needed |
| Chigger Creek (Unclassified Water Body) | TX-1101B_01 | From The Headwaters To Fm 528 | Data Unavailable | Stream | 8.8 | Miles | Impaired | TMDL completed |
| Chigger Creek (Unclassified Water Body) | TX-1101B_02 | Fm 528 To The Confluence With Clear Creek | Data Unavailable | Stream | 2.3 | Miles | Good | |
| Chocolate Bay | TX-2432_01 | Entire Segment | Data Unavailable | Estuary | 7.4 | Square Miles | Impaired | TMDL needed |
| Chocolate Bayou Above Tidal | TX-1108_01 | From A Point 4.2 Km (2.6 Mi) Downstream Of Sh 35 To Sh 6 | Data Unavailable | Stream | 23.2 | Miles | Good | |
| Chocolate Bayou Tidal | TX-1107_01 | From The Chocolate Bay Confluence 1.4 Km (0.9 Mi) Downstream Of Fm 2004 To A Point 4.2 Km (2.6 Mi) Downstream Of Sh 35 | Data Unavailable | Tidal River | 16.1 | Miles | Impaired | TMDL needed |
| Clear Creek Above Tidal | TX-1102_01 | Upper Segment Boundary (Rouen Road) To Sh 288 | Data Unavailable | Stream | 6.0 | Miles | Impaired | TMDL needed |
| Clear Creek Above Tidal | TX-1102_02 | Sh 288 To Hickory Slough Confluence | Data Unavailable | Stream | 8.4 | Miles | Impaired | TMDL needed |
| Clear Creek Above Tidal | TX-1102_03 | Hickory Slough Confluence To Turkey Creek Confluence | Data Unavailable | Stream | 11.1 | Miles | Impaired | TMDL needed |
| Clear Creek Tidal | TX-1101_01 | Upper Segment Boundary To Chigger Creek Confluence | Data Unavailable | Tidal River | 2.2 | Miles | Impaired | TMDL needed |
| Clear Creek Tidal | TX-1101_02 | Chigger Creek Confluence To Ih 45 | Data Unavailable | Tidal River | 3.4 | Miles | Impaired | TMDL needed |
| Clear Creek Tidal | TX-1101_03 | Ih 45 To Cow Bayou Confluence | Data Unavailable | Tidal River | 4.3 | Miles | Impaired | TMDL needed |
| Clear Lake | TX-2425_01 | Entire Segment | Data Unavailable | Estuary | 2.8 | Square Miles | Impaired | TMDL needed |
| Cowart Creek (Unclassified Water Body) | TX-1102A_01 | Sunset Drive To Sh 35 | Data Unavailable | Stream | 4.8 | Miles | Impaired | TMDL completed |
| Dickinson Bayou Above Tidal | TX-1104_01 | From The Lower Segment Boundary (A Point 4.0 Km (2.5 Mi) Downstream Of Fm 517) To Fm 517 | Data Unavailable | Stream | 3.4 | Miles | Impaired | TMDL needed |
| Dickinson Bayou Tidal | TX-1103_01 | From 2.5 Miles Downstream Of Fm 517 To The Bordens Gully Confluence | Data Unavailable | Tidal River | 4.8 | Miles | Impaired | TMDL needed |
| Dickinson Bayou Tidal | TX-1103_02 | From The Bordens Gully Confluence To The Benson Bayou Confluence | Data Unavailable | Tidal River | .9 | Miles | Impaired | TMDL needed |
| Dickinson Bayou Tidal | TX-1103_03 | From The Benson Bayou Confluence To The Confluence With Gum Bayou | Data Unavailable | Tidal River | 3.9 | Miles | Impaired | TMDL needed |
| Dickinson Bayou Tidal | TX-1103_04 | From The Gum Bayou To 1.3 Miles Downstream Of Sh 146 | Data Unavailable | Tidal River | 5.0 | Miles | Impaired | TMDL needed |
| Highland Bayou (Unclassified Water Body) | TX-2424A_01 | From The Jones Bay Confluence Upstream To Bayou Lane | Data Unavailable | Tidal River | 3.1 | Miles | Impaired | TMDL needed |
| Highland Bayou (Unclassified Water Body) | TX-2424A_02 | From Bayou Lane Upstream To Lake Road | Data Unavailable | Tidal River | 1.6 | Miles | Impaired | TMDL needed |
| Highland Bayou (Unclassified Water Body) | TX-2424A_03 | From Lake Road Upstream To Fm 519 | Data Unavailable | Tidal River | 2.8 | Miles | Impaired | TMDL needed |
| Highland Bayou (Unclassified Water Body) | TX-2424A_04 | From Fm 519 Upstream To Fm 2004 | Data Unavailable | Tidal River | 1.1 | Miles | Impaired | TMDL needed |
| Highland Bayou (Unclassified Water Body) | TX-2424A_05 | From Fm 2004 To The Headwaters Just West Of Fm 1764 | Data Unavailable | Tidal River | 5.3 | Miles | Impaired | TMDL needed |
| Jarbo Bayou (Unclassified Water Body) | TX-2425B_01 | From The Clear Lake Confluence Upstream To Lawrence Road | Data Unavailable | Tidal River | 1.6 | Miles | Impaired | TMDL needed |
| Jarbo Bayou (Unclassified Water Body) | TX-2425B_02 | From Lawrence Road To The Headwaters 1.1 Km (0.67 Mi) Upstream Of Fm 518 | Data Unavailable | Tidal River | .6 | Miles | Impaired | TMDL needed |
| Lower Galveston Bay | TX-2439_02 | Main Portion Of The Bay | Data Unavailable | Estuary | 120.0 | Square Miles | Impaired | TMDL needed |
| Marchand Bayou (Unclassified Water Body) | TX-2424C_01 | From Highland Bayou Confluence 0.72 Km (0.45 Mi) North Of Ih-45 | Data Unavailable | Tidal River | 2.3 | Miles | Impaired | TMDL needed |
| Mary'S Creek/ North Fork Mary'S Creek (Unclassified Water Body) | TX-1102B_01 | From The Clear Creek Above Tidal Confluence Upstream To The N. And S. Fork Mary'S Creek Near Fm 1128 | Data Unavailable | Stream | 13.1 | Miles | Good | |
| Moses Bayou (Unclassified Water Body) | TX-2431A_01 | From Moses Lake Confluence To 2.2 Km (1.4 Mi) Upstream Of Sh 3 | Data Unavailable | Tidal River | 5.0 | Miles | Impaired | TMDL needed |
| Moses Lake | TX-2431_01 | Entire Segment | Data Unavailable | Estuary | 4.0 | Square Miles | Impaired | TMDL needed |
| Offatts Bayou (Unclassified Water Body) | TX-2424D_01 | Upper Area Bordered By Sh 342 And 71st Street | Data Unavailable | Estuary | .4 | Square Miles | Impaired | TMDL needed |
| Offatts Bayou (Unclassified Water Body) | TX-2424D_02 | Middle Area Bordered By 71st Street And Walsh Street | Data Unavailable | Estuary | .5 | Square Miles | Impaired | TMDL needed |
| Offatts Bayou (Unclassified Water Body) | TX-2424D_03 | Lower Area Bordered By Walsh Street And Techmann Point | Data Unavailable | Estuary | .6 | Square Miles | Impaired | TMDL needed |
| Pine Gully Above Tidal (Unclassified Water Body) | TX-1007H_01 | From The Sims Bayou Confluence To 0.11 Km (0.07 Mi) East Of Broadway Street | Data Unavailable | Stream | 1.1 | Miles | Impaired | TMDL needed |
| Texas City Ship Channel | TX-2437_01 | Entire Segment | Data Unavailable | Estuary | .7 | Square Miles | Impaired | TMDL needed |
| Upper Galveston Bay | TX-2421_01 | Red Bluff To Five Mile Cut To Houston Point To Morgans Point | Data Unavailable | Estuary | 20.8 | Square Miles | Impaired | TMDL needed |
| West Bay | TX-2424_01 | Main Portion Of Water Body | Data Unavailable | Estuary | 56.8 | Square Miles | Impaired | TMDL needed |
Causes of Impairment for Reporting Year 2010
Texas, West Galveston Bay
Description of this table| NOTE: Click on the underlined "Cause of Impairment" value to see a listing of those waters with that cause of impairment. | |||||||||||||||
| Cause of Impairment | Size of Assessed Waters with Listed Causes of Impairment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rivers and Streams (Miles) |
Bays and Estuaries (Square Miles) |
||||||||||||||
| Bacteria | 90.1 | ||||||||||||||
| Dissolved Oxygen | 28.0 | ||||||||||||||
| Dioxin (Including 2,3,7,8-TCDD) | 66.1 | 214.3 | |||||||||||||
| PCB(s) in Fish Tissue | 91.6 | 214.3 | |||||||||||||
Probable Sources Contributing to Impairments for Reporting Year 2010
Texas, West Galveston Bay Watershed
Description of this table| Probable Source | Size of Assessed Waters with Probable Sources of Impairments | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rivers and Streams (Miles) |
Bays and Estuaries (Square Miles) |
||||||||||||||
| Industrial Point Source Discharge | 66.1 | 214.3 | |||||||||||||
| Municipal Point Source Discharges | 18.7 | ||||||||||||||
| Non-Point Source | 39.1 | ||||||||||||||
| Sanitary Sewer Overflows (Collection System Failures) | 1.1 | ||||||||||||||
| Source Unknown | 95.0 | 214.3 | |||||||||||||
| Urban Runoff/Storm Sewers | 83.0 | ||||||||||||||
TMDL Alternatives by Cause of Impairment for Reporting Year 2010
Texas, West Galveston Bay Watershed
No TMDL Alternatives reported.
Cumulative TMDLs by Pollutant
Texas, West Galveston Bay 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 |
|---|---|---|
| Enterococcus Bacteria |  14 |
14 |
| Escherichia Coli (E. Coli) | 10 |
10 |
| Fecal Coliform | 7 |
7 |
| 1,1,2-Trichloroethane | 2 |
2 |
| 1,2-Dichloroethane | 2 |
2 |
| Chlordane | 2 |
2 |
| Chlorides | 1 |
1 |
| Nickel | 1 |
1 |
| Total Dissolved Solids (TDS) | 1 |
1 |
Total: 40 TMDLs; 0 Causes of Impairment
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