Summary of Water Quality Issues

Legend and Ranking Key

The numbers represent the percent of total segment length that is impaired or of concern for each parameter. Cells without numbers represent stream segments that are currently meeting state standards but may be improving or degrading for each parameter.

X

Severe, multiple water quality impairments and/or concerns exist in the majority of the water body

XX

Significant, multiple water quality impairments and/or concerns exist in a majority of the water body

XXX

Impairments or concerns exist in a substantial portion of the water body

XXXX

Impairment or concern exists in the water body

XXXXX

No known water quality impairments or concerns exist in the water body


ImprovingDegrading

Click on the segment name to view a map and summary of water quality. Click on the segment number to view the water quality monitoring data summary.

Basin & Segment NameSegment NumberDOBacteriaChlorophyll-aNutrientsDioxin/PCBsOther*Frog(s)
Trinity - San Jacinto Coastal Basin
Cedar Bayou Above Tidal 0902 100 XXX
Cedar Bayou Tidal 0901 100 100 100 X
San Jacinto River Basin
Buffalo Bayou Above Tidal 1014 2 77 66 2 X X X
Buffalo Bayou Tidal 1013 31 63 36 27 X X X
Caney Creek 1010 50 X X X
Cypresss Creek 1009 85 85 13 X X X
East Fork San Jacinto 1003 100 X X X
Greens Bayou 1016 5 96 85 X X
Houston Ship Channel Tidal 1006 2 71 64 37 37 X X
HSC San Jacinto River Tidal 1005 60 100 X X
HSC Buffalo Bayou 1007 14 99 87 24 24 X X
Lake Conroe 1012 16 X X X X
Lake Creek 1015 37 X X X X
Lake Houston 1002 9 13 22 1 X X X X
Peach Creek 1011 100 X X X
San Jacinto River Tidal 1001 43 X X X
Spring Creek 1008 12 47 1 31 23 X X X
West Fork San Jacinto River 1004 64 27 X X X
White Oak Bayou 1017 4 79 76 X X
San Jacinto - Brazos Coastal Basin
Armand Bayou Tidal 1113 62 36 12 18 25 X X X
Bastrop Bayou Tidal 1105 79 35 X X X
Chocolate Bayou Above Tidal 1108 100 X X X X
Chocolate Bayou Tidal 1107 100 100 100 X
Clear Creek Above Tidal 1102 65 64 68 44 12 X X
Clear Creek Tidal 1101 43 94 10 24 29 X X
Dickinson Bayou Above Tidal 1104 57 41 X X
Dickinson Bayou Tidal 1103 52 73 12 41 X
Old Brazos River Channel 1111 100 XXXX
Oyster Creek Above Tidal 1110 24 58 24 XXX
Oyster Creek Tidal 1109 XXXXX
Brazos - Colorado Coastal Basin
San Bernard River Above Tidal 1302 53 63 9 X X X X
San Bernard River Tidal 1301 100 100 X X X
Bays & Estuaries - Gulf of Mexico
Upper Galveston Bay 2421 89 100 100 X X
Barbours Cut 2436 100 100 X X
Bastrop Bay / Oyster Lake 2433 X X X X X
Bayport Channel 2438 100 100 100 X X
Black Duck Bay 2428 100 100 100 X X
Burnett Bay 2430 100 100 100 X X
Chocolate Bay 2432 41 13 39 X X X
Christmas Bay 2434 X X X X X
Clear Lake 2425 2 11 65 65 92 X X
Drum Bay 2435 X X X X X
East Bay 2423 30 100 100 X X
Lower Galveston Bay 2439 100 100 X X
Moses Lake 2431 35 20 20 54 X X
San Jacinto Bay 2427 100 100 100 X X
Scott Bay 2429 100 100 100 X X
Tabbs Bay 2426 100 100 X X
Texas City Ship Channel 2437 100 100 100 X X
West Bay 2424 8 8 15 88 X X
Gulf of Mexico 2501 100 X X X X

* Other includes parameters such as metals in water, metals in sediment, impaired habitat, impaired benthic macro invertebrates, impaired fish communities, sediment toxicity, fecal coliform, mercury in fish tissue and fish contamination. For more information see watershed summaries.

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